The document discusses DCT/IDCT concepts and applications. It provides an introduction to DCT and IDCT, explaining that they are used widely in video and audio compression. It describes the DCT and IDCT functions and how they work to transform signals between spatial and frequency domains. Examples of one-dimensional and two-dimensional DCT/IDCT equations are also given. Finally, common applications of DCT/IDCT compression techniques are listed, such as in DVD players, cable TV, graphics cards, and medical imaging systems.
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is an open access international journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Lifting Scheme Cores for Wavelet TransformDavid Bařina
The thesis focuses on efficient computation of the two-dimensional discrete wavelet transform. The state-of-the-art methods are extended in several ways to perform the transform in a single loop, possibly in multi-scale fashion, using a compact streaming core. This core can further be appropriately reorganized to target the minimization of certain platform resources. The approach presented here nicely fits into common SIMD extensions, exploits the cache hierarchy of modern general-purpose processors, and is suitable for parallel evaluation. Finally, the approach presented is incorporated into the JPEG 2000 compression chain, in which it has proved to be fundamentally faster than widely used implementations.
Hybrid Approach for Robust Digital Video WatermarkingIJSRD
With the growing popularity of internet and digital media, digital watermarking techniques have been developed to protect the copyright of multimedia objects such as text, audio, video, etc. So, we have proposed a hybrid video watermarking technique which takes the advantages of different transforms like DWT, DCT, SVD and Arnold Transform, which enhances more security and provides robustness to the watermark. In this paper method, video is divided into several groups of frames, and one of the frames is selected where watermark will be embedded. Before embedding watermark in a selected frame it will be pre-processed with Arnold Transform which will provide security to it. The selected plane of video frame are decomposed using DWT and high frequency band HH, middle frequency bands LH, HL are transformed with DCT. The DCT coefficients are SVD transformed which are embedded with corresponding transformed coefficients of watermarks along with Arnold Transform. The embedded watermark is extracted with inverse process of embedding. The proposed algorithm is tested with various video sequences using MATLAB 2013a. The distortion quality of original image and watermark is controlled by the Peak Signal to Noise Ratio, Signal to Noise Ratio and Mean square error of the watermarked frame with original frame.
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is an open access international journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
Lifting Scheme Cores for Wavelet TransformDavid Bařina
The thesis focuses on efficient computation of the two-dimensional discrete wavelet transform. The state-of-the-art methods are extended in several ways to perform the transform in a single loop, possibly in multi-scale fashion, using a compact streaming core. This core can further be appropriately reorganized to target the minimization of certain platform resources. The approach presented here nicely fits into common SIMD extensions, exploits the cache hierarchy of modern general-purpose processors, and is suitable for parallel evaluation. Finally, the approach presented is incorporated into the JPEG 2000 compression chain, in which it has proved to be fundamentally faster than widely used implementations.
Hybrid Approach for Robust Digital Video WatermarkingIJSRD
With the growing popularity of internet and digital media, digital watermarking techniques have been developed to protect the copyright of multimedia objects such as text, audio, video, etc. So, we have proposed a hybrid video watermarking technique which takes the advantages of different transforms like DWT, DCT, SVD and Arnold Transform, which enhances more security and provides robustness to the watermark. In this paper method, video is divided into several groups of frames, and one of the frames is selected where watermark will be embedded. Before embedding watermark in a selected frame it will be pre-processed with Arnold Transform which will provide security to it. The selected plane of video frame are decomposed using DWT and high frequency band HH, middle frequency bands LH, HL are transformed with DCT. The DCT coefficients are SVD transformed which are embedded with corresponding transformed coefficients of watermarks along with Arnold Transform. The embedded watermark is extracted with inverse process of embedding. The proposed algorithm is tested with various video sequences using MATLAB 2013a. The distortion quality of original image and watermark is controlled by the Peak Signal to Noise Ratio, Signal to Noise Ratio and Mean square error of the watermarked frame with original frame.
Semantic Reasoning in Context-Aware Assistive Environments to Support Ageing ...IPALab
Robust solutions for ambient assisted living are numerous, yet predominantly specific in their scope of usability. In this paper, we de- scribe the potential contribution of semantic web technologies to building more versatile solutions — a step towards adaptable context-aware en- gines and simplified deployments. Our conception and deployment work in hindsight, we highlight some implementation challenges and require- ments for semantic web tools that would help to ease the development of context-aware services and thus generalize real-life deployment of se- mantically driven assistive technologies. We also compare available tools with regard to these requirements and validate our choices by providing some results from a real-life deployment.
The objective of this work is to propose an image
denoising technique and compare it with image denoising
using ridgelets. The proposed method uses slantlet transform
instead of wavelets in ridgelet transform. Experimental result
shows that the proposed method is more effective than ridgelets
in noise removal. The proposed method is effective in
compressing images while preserving edges.
Image Resolution Enhancement Using Undecimated Double Density Wavelet TransformCSCJournals
In this paper, an undecimated double density wavelet based image resolution enhancement technique is proposed. The critically sampled discrete wavelet transform (DWT) suffers from the drawbacks of being shift-variant and lacking the capacity to process directional information in images. The double density wavelet transform (DDWT) is an approximately shift-invariant transform capturing directional information. The undecimated double density wavelet transform (UDDWT) is an improvement of the DDWT, making it exactly shift-invariant. The method uses a forward and inverse UDDWT to construct a high resolution (HR) image from the given low resolution (LR) image. The results are compared with state-of-the-art resolution enhancement methods.
In Digital era sharing of images have become very
common and raises the risk of using it for unethical and
fraudulent purposes with the help of manipulation tools. Digital
image watermarking is one way to protect the digital information
(text, images, audio, and video) from fraudulent manipulations.
Digital Image Watermarking is a process of implanting data in
the original image for authentication. In this paper we are
providing one such watermarking scheme for color images. The
proposed method is designed to be robust for common attacks
with the aid of redundant discrete wavelet transform (RDWT)
and discrete cosine transform (DCT) properties. After applying
two levels RDWT decomposition to the blue channel of cover
image, we apply DCT to HH_LL subband i.e. 2nd level
decomposed coefficient of HH band and to the watermark.
Divided the HH_LL sub band into 4x4 subblocks and DCT
coefficients of the last subblock of the cover image are replaced
with the DCT coefficients of watermark. Inverse DCT and
inverse RDWT is performed to get watermarked image. The
performance of the proposed technique is measured using the
parameters PSNR and NCC.
Here is a data sheet on the Dukane 8421 DLP ( Digital Light Processor) projector from Dukane.
Bill McIntosh
School Vision Inc ( my consulting company)
Authorized Dukane Consultant
Phone :843-442-8888
Email :WKMcIntosh@Comcast.net
Twitter : @OtisTMcIntosh
SchoolVision Website on Facebook: https://www.facebook.com/WKMIII
You can find information on all of Dukane products here
http://www.slideshare.net/WKMcIntoshIII/documents
http://www.slideshare.net/WKMcIntoshIII/presentations
http://www.slideshare.net/WKMcIntoshIII/videos.
Here is the main the main Dukane website
www.dukane.com/av
Land Cover Feature Extraction using Hybrid Swarm Intelligence Techniques - A ...IDES Editor
The findings of recent studies are showing strong
evidence to the fact that some aspects of biogeography can be
applied to solve specific problems in science and engineering.
The proposed work presents a hybrid biologically inspired
technique that can be adapted according to the database of
expert knowledge for a more focused satellite image
classification. The paper also presents a comparative study of
our hybrid intelligent classifier with the other recent Soft
Computing Classifiers such as ACO, Hybrid Particle Swarm
Optimization-cAntMiner (PSO-ACO2), Fuzzy sets, Rough-
Fuzzy Tie up and the Semantic Web Based Classifiers and
the traditional probabilistic classifiers such as the Minimum
Distance to Mean Classifier (MDMC) and the Maximum
Likelihood Classifier (MLC).
Comparative Analysis of Dwt, Reduced Wavelet Transform, Complex Wavelet Trans...ijsrd.com
Image denoising is the process to remove the noise from the image naturally corrupted by the noise. The wavelet method is one among various methods for recovering infinite dimensional objects like curves, densities, images, etc. The wavelet techniques are very effective to remove the noise because of their ability to capture the energy of a signal in few energy transform values. Though the wavelet transform have the best bases when it represents target functions which has dot singularity, it can hardly get the best bases when it present the singularity of line and hyper-plane. This makes the traditional two-dimensional wavelet transform in dealing with the image have some limitations. To overcome the above-mentioned shortcomings of Wavelet transform the theory of Curvelet transform was promoted.
Image Compression Using Wavelet Packet TreeIDES Editor
Methods of compressing data prior to storage and
transmission are of significant practical and commercial
interest. The necessity in image compression continuously
grows during the last decade. The image compression includes
transform of image, quantization and encoding. One of the
most powerful and perspective approaches in this area is
image compression using discrete wavelet transform. This
paper describes a new approach called as wavelet packet tree
for image compression. It constructs the best tree on the basis
of Shannon entropy. This new approach checks the entropy of
decomposed nodes (child nodes) with entropy of node, which
has been decomposed (parent node) and takes the decision of
decomposition of a node. In addition, authors have proposed
an adaptive thresholding for quantization, which is based on
type of wavelet used and nature of image. Performance of the
proposed algorithm is compared with existing wavelet
transform algorithm in terms of percentage of zeros and
percentage of energy retained and signals to noise ratio.
SECURE WATERMARKING TECHNIQUE FOR MEDICAL IMAGES WITH VISUAL EVALUATIONsipij
This paper presents a hybrid watermarking technique for medical images. The method uses a combination
of three transforms: Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT), and singular
value decomposition (SVD). Then, the paper discusses the results of applying the combined method on
different medical images from eight patients. The images were watermarked with a small watermark image
representing the patients' medical data. The visual quality of the watermarked images (before and after
attacks) was analyzed using five quality metrics: PSNR, WSNR, PSNR-HVS-M, PSNR-HVS, and MSSIM.
The first four metrics' average values of the watermarked medical images before attacks were
approximately 32 db, 35 db, 42 db, and 40 db respectively; while the MSSM index indicated a similarity
between the original and watermarked images of more than 97%. However, the metric values decreased
significantly after attacking the images with various operations even though the watermark image could be
retrieved after almost all attacks. In brief, the initial results indicate that watermarking medical images
with patients' data does not significantly affect their visual quality and they can still be used by medical
staff
Semantic Reasoning in Context-Aware Assistive Environments to Support Ageing ...IPALab
Robust solutions for ambient assisted living are numerous, yet predominantly specific in their scope of usability. In this paper, we de- scribe the potential contribution of semantic web technologies to building more versatile solutions — a step towards adaptable context-aware en- gines and simplified deployments. Our conception and deployment work in hindsight, we highlight some implementation challenges and require- ments for semantic web tools that would help to ease the development of context-aware services and thus generalize real-life deployment of se- mantically driven assistive technologies. We also compare available tools with regard to these requirements and validate our choices by providing some results from a real-life deployment.
The objective of this work is to propose an image
denoising technique and compare it with image denoising
using ridgelets. The proposed method uses slantlet transform
instead of wavelets in ridgelet transform. Experimental result
shows that the proposed method is more effective than ridgelets
in noise removal. The proposed method is effective in
compressing images while preserving edges.
Image Resolution Enhancement Using Undecimated Double Density Wavelet TransformCSCJournals
In this paper, an undecimated double density wavelet based image resolution enhancement technique is proposed. The critically sampled discrete wavelet transform (DWT) suffers from the drawbacks of being shift-variant and lacking the capacity to process directional information in images. The double density wavelet transform (DDWT) is an approximately shift-invariant transform capturing directional information. The undecimated double density wavelet transform (UDDWT) is an improvement of the DDWT, making it exactly shift-invariant. The method uses a forward and inverse UDDWT to construct a high resolution (HR) image from the given low resolution (LR) image. The results are compared with state-of-the-art resolution enhancement methods.
In Digital era sharing of images have become very
common and raises the risk of using it for unethical and
fraudulent purposes with the help of manipulation tools. Digital
image watermarking is one way to protect the digital information
(text, images, audio, and video) from fraudulent manipulations.
Digital Image Watermarking is a process of implanting data in
the original image for authentication. In this paper we are
providing one such watermarking scheme for color images. The
proposed method is designed to be robust for common attacks
with the aid of redundant discrete wavelet transform (RDWT)
and discrete cosine transform (DCT) properties. After applying
two levels RDWT decomposition to the blue channel of cover
image, we apply DCT to HH_LL subband i.e. 2nd level
decomposed coefficient of HH band and to the watermark.
Divided the HH_LL sub band into 4x4 subblocks and DCT
coefficients of the last subblock of the cover image are replaced
with the DCT coefficients of watermark. Inverse DCT and
inverse RDWT is performed to get watermarked image. The
performance of the proposed technique is measured using the
parameters PSNR and NCC.
Here is a data sheet on the Dukane 8421 DLP ( Digital Light Processor) projector from Dukane.
Bill McIntosh
School Vision Inc ( my consulting company)
Authorized Dukane Consultant
Phone :843-442-8888
Email :WKMcIntosh@Comcast.net
Twitter : @OtisTMcIntosh
SchoolVision Website on Facebook: https://www.facebook.com/WKMIII
You can find information on all of Dukane products here
http://www.slideshare.net/WKMcIntoshIII/documents
http://www.slideshare.net/WKMcIntoshIII/presentations
http://www.slideshare.net/WKMcIntoshIII/videos.
Here is the main the main Dukane website
www.dukane.com/av
Land Cover Feature Extraction using Hybrid Swarm Intelligence Techniques - A ...IDES Editor
The findings of recent studies are showing strong
evidence to the fact that some aspects of biogeography can be
applied to solve specific problems in science and engineering.
The proposed work presents a hybrid biologically inspired
technique that can be adapted according to the database of
expert knowledge for a more focused satellite image
classification. The paper also presents a comparative study of
our hybrid intelligent classifier with the other recent Soft
Computing Classifiers such as ACO, Hybrid Particle Swarm
Optimization-cAntMiner (PSO-ACO2), Fuzzy sets, Rough-
Fuzzy Tie up and the Semantic Web Based Classifiers and
the traditional probabilistic classifiers such as the Minimum
Distance to Mean Classifier (MDMC) and the Maximum
Likelihood Classifier (MLC).
Comparative Analysis of Dwt, Reduced Wavelet Transform, Complex Wavelet Trans...ijsrd.com
Image denoising is the process to remove the noise from the image naturally corrupted by the noise. The wavelet method is one among various methods for recovering infinite dimensional objects like curves, densities, images, etc. The wavelet techniques are very effective to remove the noise because of their ability to capture the energy of a signal in few energy transform values. Though the wavelet transform have the best bases when it represents target functions which has dot singularity, it can hardly get the best bases when it present the singularity of line and hyper-plane. This makes the traditional two-dimensional wavelet transform in dealing with the image have some limitations. To overcome the above-mentioned shortcomings of Wavelet transform the theory of Curvelet transform was promoted.
Image Compression Using Wavelet Packet TreeIDES Editor
Methods of compressing data prior to storage and
transmission are of significant practical and commercial
interest. The necessity in image compression continuously
grows during the last decade. The image compression includes
transform of image, quantization and encoding. One of the
most powerful and perspective approaches in this area is
image compression using discrete wavelet transform. This
paper describes a new approach called as wavelet packet tree
for image compression. It constructs the best tree on the basis
of Shannon entropy. This new approach checks the entropy of
decomposed nodes (child nodes) with entropy of node, which
has been decomposed (parent node) and takes the decision of
decomposition of a node. In addition, authors have proposed
an adaptive thresholding for quantization, which is based on
type of wavelet used and nature of image. Performance of the
proposed algorithm is compared with existing wavelet
transform algorithm in terms of percentage of zeros and
percentage of energy retained and signals to noise ratio.
SECURE WATERMARKING TECHNIQUE FOR MEDICAL IMAGES WITH VISUAL EVALUATIONsipij
This paper presents a hybrid watermarking technique for medical images. The method uses a combination
of three transforms: Discrete Wavelet Transform (DWT), Discrete Cosine Transform (DCT), and singular
value decomposition (SVD). Then, the paper discusses the results of applying the combined method on
different medical images from eight patients. The images were watermarked with a small watermark image
representing the patients' medical data. The visual quality of the watermarked images (before and after
attacks) was analyzed using five quality metrics: PSNR, WSNR, PSNR-HVS-M, PSNR-HVS, and MSSIM.
The first four metrics' average values of the watermarked medical images before attacks were
approximately 32 db, 35 db, 42 db, and 40 db respectively; while the MSSM index indicated a similarity
between the original and watermarked images of more than 97%. However, the metric values decreased
significantly after attacking the images with various operations even though the watermark image could be
retrieved after almost all attacks. In brief, the initial results indicate that watermarking medical images
with patients' data does not significantly affect their visual quality and they can still be used by medical
staff
Mobile data traffic is growing year to year. Mobile operators are facing a different situation from voice legacy business. The growth of data traffic is not as high as one of revenue. They need to lower cost of Mbps to survive otherwise they will collapse.
This third part of Linux internals talks about Thread programming and using various synchronization mechanisms like mutex and semaphores. These constructs helps users to write efficient programs in Linux environment
Discrete cosine transform (DCT) is a widely used tool in image and video compression applications. Recently, the high-throughput DCT designs have been adopted to fit the requirements of real-time application.
Operating the shifting and addition in parallel, an error-compensated adder-tree (ECAT) is proposed to deal with the truncation errors and to achieve low-error and high-throughput discrete cosine transform (DCT) design. Instead of the 12 bits used in previous works, 9-bit distributed arithmetic. DA-based DCT core with an error-compensated adder-tree (ECAT). The proposed ECAT operates shifting and addition in parallel by unrolling all the words required to be computed. Furthermore, the error-compensated circuit alleviates the truncation error for high accuracy design. Based on low-error ECAT, the DA-precision in this work is chosen to be 9 bits instead of the traditional 12 bits. Therefore, the hardware cost is reduced, and the speed is improved using the proposed ECAT.
it is used for security purpose using two level dct and wavelet packet denoising .based on digital image processing.the software based on matlab.it is used for high security purpose.
3D Televisions: Forecasting their emergenceJeffrey Funk
My Master's students used ideas from my (Jeff Funk) forthcoming book (Technology Change and the Rise of New Industries) to analyze when 3D LCD TVs might emerge. See my other slides for details on concepts, methodology, and other new industries.
IOSR Journal of Electronics and Communication Engineering(IOSR-JECE) is an open access international journal that provides rapid publication (within a month) of articles in all areas of electronics and communication engineering and its applications. The journal welcomes publications of high quality papers on theoretical developments and practical applications in electronics and communication engineering. Original research papers, state-of-the-art reviews, and high quality technical notes are invited for publications.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2021/08/high-fidelity-conversion-of-floating-point-networks-for-low-precision-inference-using-distillation-with-limited-data-a-presentation-from-imagination-technologies/
James Imber, Senior Research Engineer at Imagination Technologies, presents the “High-fidelity Conversion of Floating-point Networks for Low-precision Inference using Distillation with Limited Data” tutorial at the May 2021 Embedded Vision Summit.
When converting floating-point networks to low-precision equivalents for high-performance inference, the primary objective is to maximally compress the network whilst maintaining fidelity to the original, floating-point network. This is made particularly challenging when only a reduced or unlabelled dataset is available. Data may be limited for reasons of a commercial or legal nature: for example, companies may be unwilling to share valuable data and labels that represent a substantial investment of resources; or the collector of the original dataset may not be permitted to share it for data privacy reasons.
Imber presents a method based on distillation that allows high-fidelity, low-precision networks to be produced for a wide range of different network types, using the original trained network in place of a labeled dataset. The proposed approach is directly applicable across multiple domains (e.g. classification, segmentation and style transfer) and can be adapted to numerous network compression techniques.
For the full video of this presentation, please visit:
https://www.edge-ai-vision.com/2020/12/trends-in-neural-network-topologies-for-vision-at-the-edge-a-presentation-from-synopsys/
For more information about edge AI and computer vision, please visit:
https://www.edge-ai-vision.com
Pierre Paulin, Director of R&D for Embedded Vision at Synopsys, presents the “Trends in Neural Network Topologies for Vision at the Edge” tutorial at the September 2020 Embedded Vision Summit.
The widespread adoption of deep neural networks (DNNs) in embedded vision applications has increased the importance of creating DNN topologies that maximize accuracy while minimizing computation and memory requirements. This has led to accelerated innovation in DNN topologies.
In this talk, Paulin summarizes the key trends in neural network topologies for embedded vision applications, highlighting techniques employed by widely used networks such as EfficientNet and MobileNet to boost both accuracy and efficiency. He also touches on other optimization methods—such as pruning, compression and layer fusion—that developers can use to further reduce the memory and computation demands of modern DNNs.
For the full video of this presentation, please visit: https://www.edge-ai-vision.com/2023/06/enabling-ultra-low-power-edge-inference-and-on-device-learning-with-akida-a-presentation-from-brainchip/
Nandan Nayampally, Chief Marketing Officer at BrainChip, presents the “Enabling Ultra-low Power Edge Inference and On-device Learning with Akida” tutorial at the May 2023 Embedded Vision Summit.
The AIoT industry is expected to reach $1T by 2030—but that will happen only if edge devices rapidly become more intelligent. In this presentation, Nayampally shows how BrainChip’s Akida IP solution enables improved edge ML accuracy and on-device learning with extreme energy efficiency. Akida is a fully digital, neuromorphic, event-based AI engine that offers unique on-device learning abilities, minimizing the need for cloud retraining.
Nayampally demonstrates Akida’s compelling performance and extreme energy efficiency on complex models and explains how Akida executes spatial-temporal convolutions using innovative handling of 3D and 1D data. He also shows how Akida supports low-power implementations of vision transformers and introduces the Akida developer ecosystem, which enables both AI experts and newcomers to quickly deploy disruptive edge AI applications that weren’t possible before.
Generating a custom Ruby SDK for your web service or Rails API using Smithyg2nightmarescribd
Have you ever wanted a Ruby client API to communicate with your web service? Smithy is a protocol-agnostic language for defining services and SDKs. Smithy Ruby is an implementation of Smithy that generates a Ruby SDK using a Smithy model. In this talk, we will explore Smithy and Smithy Ruby to learn how to generate custom feature-rich SDKs that can communicate with any web service, such as a Rails JSON API.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
GraphRAG is All You need? LLM & Knowledge GraphGuy Korland
Guy Korland, CEO and Co-founder of FalkorDB, will review two articles on the integration of language models with knowledge graphs.
1. Unifying Large Language Models and Knowledge Graphs: A Roadmap.
https://arxiv.org/abs/2306.08302
2. Microsoft Research's GraphRAG paper and a review paper on various uses of knowledge graphs:
https://www.microsoft.com/en-us/research/blog/graphrag-unlocking-llm-discovery-on-narrative-private-data/
JMeter webinar - integration with InfluxDB and GrafanaRTTS
Watch this recorded webinar about real-time monitoring of application performance. See how to integrate Apache JMeter, the open-source leader in performance testing, with InfluxDB, the open-source time-series database, and Grafana, the open-source analytics and visualization application.
In this webinar, we will review the benefits of leveraging InfluxDB and Grafana when executing load tests and demonstrate how these tools are used to visualize performance metrics.
Length: 30 minutes
Session Overview
-------------------------------------------
During this webinar, we will cover the following topics while demonstrating the integrations of JMeter, InfluxDB and Grafana:
- What out-of-the-box solutions are available for real-time monitoring JMeter tests?
- What are the benefits of integrating InfluxDB and Grafana into the load testing stack?
- Which features are provided by Grafana?
- Demonstration of InfluxDB and Grafana using a practice web application
To view the webinar recording, go to:
https://www.rttsweb.com/jmeter-integration-webinar
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
Essentials of Automations: Optimizing FME Workflows with ParametersSafe Software
Are you looking to streamline your workflows and boost your projects’ efficiency? Do you find yourself searching for ways to add flexibility and control over your FME workflows? If so, you’re in the right place.
Join us for an insightful dive into the world of FME parameters, a critical element in optimizing workflow efficiency. This webinar marks the beginning of our three-part “Essentials of Automation” series. This first webinar is designed to equip you with the knowledge and skills to utilize parameters effectively: enhancing the flexibility, maintainability, and user control of your FME projects.
Here’s what you’ll gain:
- Essentials of FME Parameters: Understand the pivotal role of parameters, including Reader/Writer, Transformer, User, and FME Flow categories. Discover how they are the key to unlocking automation and optimization within your workflows.
- Practical Applications in FME Form: Delve into key user parameter types including choice, connections, and file URLs. Allow users to control how a workflow runs, making your workflows more reusable. Learn to import values and deliver the best user experience for your workflows while enhancing accuracy.
- Optimization Strategies in FME Flow: Explore the creation and strategic deployment of parameters in FME Flow, including the use of deployment and geometry parameters, to maximize workflow efficiency.
- Pro Tips for Success: Gain insights on parameterizing connections and leveraging new features like Conditional Visibility for clarity and simplicity.
We’ll wrap up with a glimpse into future webinars, followed by a Q&A session to address your specific questions surrounding this topic.
Don’t miss this opportunity to elevate your FME expertise and drive your projects to new heights of efficiency.
UiPath Test Automation using UiPath Test Suite series, part 3DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 3. In this session, we will cover desktop automation along with UI automation.
Topics covered:
UI automation Introduction,
UI automation Sample
Desktop automation flow
Pradeep Chinnala, Senior Consultant Automation Developer @WonderBotz and UiPath MVP
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Dev Dives: Train smarter, not harder – active learning and UiPath LLMs for do...UiPathCommunity
💥 Speed, accuracy, and scaling – discover the superpowers of GenAI in action with UiPath Document Understanding and Communications Mining™:
See how to accelerate model training and optimize model performance with active learning
Learn about the latest enhancements to out-of-the-box document processing – with little to no training required
Get an exclusive demo of the new family of UiPath LLMs – GenAI models specialized for processing different types of documents and messages
This is a hands-on session specifically designed for automation developers and AI enthusiasts seeking to enhance their knowledge in leveraging the latest intelligent document processing capabilities offered by UiPath.
Speakers:
👨🏫 Andras Palfi, Senior Product Manager, UiPath
👩🏫 Lenka Dulovicova, Product Program Manager, UiPath
GenAISummit 2024 May 28 Sri Ambati Keynote: AGI Belongs to The Community in O...
Discrete cosine transform
1. ®
The DCT/IDCT Solution
Customer Tutorial
February 2000
File Number Here
2. Agenda
Introduction
DCT/IDCT Concepts
DCT/IDCT Applications
Spartan-II DCT/IDCT IP Solutions
Summary
Xilinx at Work in High Volume Applications ®
www.xilinx.com
3. Introduction
Spartan-II FPGAs
— 100,000 System Gates at under $10
— Extensive features: Block RAM, DLL, Select I/O
— Vast IP Portfolio
— Provide Density, Features, Performance at ASIC prices
Xilinx at Work in High Volume Applications ®
www.xilinx.com
4. DCT/IDCT Compression
Compression allows increased throughput through
transmission medium
— Video and audio compression makes multimedia systems very
efficient
– Increases CPU bandwidth
– Higher video frame rates
– Better audio quality
– Enables multimedia interactivity
DCT and IDCT are widely used in video and audio
compression
Xilinx at Work in High Volume Applications ®
www.xilinx.com
6. DCT/IDCT Concept
What is DCT?
— X= DCT(video/audio input)
– Returns the discrete cosine transform of ‘video/audio input’
– Can be referred to as the even part of the Fourier series
– Converts an image or audio block into it’s equivalent frequency
coefficients
What is IDCT?
— The IDCT function is the inverse of the DCT function
— The IDCT reconstructs a sequence from its discrete cosine
transform (DCT) coefficients
Xilinx at Work in High Volume Applications ®
www.xilinx.com
7. DCT/IDCT Concept
The DCT transform of an image brings out a set of
numbers called coefficients.
A coefficient’s usefulness is determined by its variance
over a set of images as in video’s case.
If a coefficient has a lot of variance over a set, then it
cannot be removed without affecting the picture quality.
Xilinx at Work in High Volume Applications ®
www.xilinx.com
8. DCT/IDCT Concept
DCT
Frequency
Coefficients
Compared to
Magnitude
Original Image Thresholds
Resulting in
Compressed
IDCT Data Streams
The image is broken into 8x8
groups, each containing 64
pixels. Three of these 8x8
groups are enlarged in this
Recovered Image
figure, showing the values of
(Notice Lesser Image Quality) the individual pixels, a single
byte value between 0 and 255.
Courtesy: The Scientist and Engineer's Guide to Digital Signal Processing by Steven W. Smith
Xilinx at Work in High Volume Applications ®
www.xilinx.com
9. DCT/IDCT Concept
Divide picture into
16 by 16 blocks.
(macroblocks) Each block is 8
pixels by 8 lines.
Each macroblock is
16 pixels by 16 lines.
(4 blocks)
DCT
8 X 8 Block Frequency
Coefficients
Xilinx at Work in High Volume Applications ®
www.xilinx.com
10. DCT/IDCT Usage
Areas of Use:
— One-Dimensional DCT/IDCT
– Dolby AC2 & AC3
– Biomedical signals like EEG & ECG
– Speech information compression
— Two-Dimensional DCT/IDCT
– JPEG Encoders
– MPEG-1 & MPEG-2
– Image & Pattern Recognition
Xilinx at Work in High Volume Applications ®
www.xilinx.com
11. DCT/IDCT Concept
One-Dimensional DCT Equation
N-1
Xc(k) = (1/N) Σ xn cos(k2πn/N),
n=0
where
k = 0, 1, 2, …, N-1
Xilinx at Work in High Volume Applications ®
www.xilinx.com
12. DCT/IDCT Concept
One-Dimensional IDCT Equation
N-1
xc(k) = Σ c[u] Xn cos(k2πn/N),
n=0
where
k = 0, 1, 2, …, N-1,
Xn is the DCT result, and
c[u] = 1 for u=0, and c[u] = 2 for u=1,2,3,…N-1
Xilinx at Work in High Volume Applications ®
www.xilinx.com
13. DCT/IDCT Concept
Two-Dimensional DCT Equation
N-1 N-1
F[u, v] = 1/N2 Σ Σ f[m, n] cos[ (2m + 1)uπ/ 2N] cos[ (2n + 1)vπ/2N ]
m=0 n=0
where:
u, v = discrete frequency variables (0, 1, 2, …, N - 1),
f[m, n] = N by N image pixels(0, 1, 2, …, N - 1), and
F[u, v] = the DCT result
Xilinx at Work in High Volume Applications ®
www.xilinx.com
14. DCT/IDCT Concept
Two-Dimensional IDCT Equation
N-1 N-1
f[m, n] = Σ Σ c[u] c[v] F[u, v] cos[ (2m + 1)uπ/ 2N] cos[ (2n + 1)vπ/2N ]
m=0 n=0
where:
m, n = image result pixel indices( 0, 1, 2, …, N – 1 ),
F[u, v] = N by N DCT result,
c[λ] = 1 for λ=0 and c[λ]=2 for λ=1,2,3,…N-1
f[m, n] = N by N IDCT result
Xilinx at Work in High Volume Applications ®
www.xilinx.com
15. DCT/IDCT Concept
Example of a Simplistic one-Dimensional DCT
— Data is transformed first and the newly calculated values are
threshold limited to a magnitude of 0.375
— Assuming a data sequence to be {1, 2, 0, 5}
Applying the one-Dimensional DCT formula,the resultant DCT
sequence is {2, 0.25, -6, 0.25}
The values that above the threshold (|values| > 0.375) are 2 and –6
This results in a 50% reduction in data size with minimal loss in
quality
Xilinx at Work in High Volume Applications ®
www.xilinx.com
17. DCT/IDCT Applications
List of Some End Applications
— DVD/Video CD Players
— Cable TV
— DBS Systems
— HDTV
— Graphics/Image Processing Cards
— Ultrasound/MRI Systems
— Digital VCRs
— Set-Top Boxes
— Digital Camera
Xilinx at Work in High Volume Applications ®
www.xilinx.com
18. DCT/IDCT in JPEG
Encoding
Compressed
Zig-Zag Data
Pixel Data Coefficient Run-Length Huffman
DCT
Encoding Encoding
Quantization
Decoding Reconstructed
Compressed Huffman Zig-Zag Pixel Data
Run-Length Coefficient
Data Decoding IDCT
Expansion Denormalization
JPEG Codec Block Diagram
Xilinx at Work in High Volume Applications ®
www.xilinx.com
19. DCT/IDCT in Bio-Medical
1-D DCT is commonly used on a sequence of digital
information like voice or heartbeat information in an ECG
Xilinx at Work in High Volume Applications ®
www.xilinx.com
20. DCT/IDCT in DVD/VCD
Reconstructed (Decoded) Frame
Inverse
IDCT
Quantizer
Video to Coded Video
be Coded Bitstream Bitstream
DCT Quantizer Coder
+ -
Motion Motion
Estimator Compensator
Anchor Frame
Storage
Courtesy: C-Cube Corporation
MPEG-2 Block Diagram in a Typical DVD System
Xilinx at Work in High Volume Applications ®
www.xilinx.com
21. DCT/IDCT in DVD/VCD
Master Variable Bit Rate or
Video Tape MPEG-2 Audio Encoder
Quality
Control
Multiplexing
Emulation
Human and Formatting
Assist Master
Recoding Disc
Master Dolby AC3 or
Audio Tape MPEG-2 Audio Encoder
Courtesy: C-Cube Corporation
DVD/VCD Mastering
Xilinx at Work in High Volume Applications ®
www.xilinx.com
22. DCT/IDCT in DVD/VCD
Digital Audio/Video Decoder
MPEG-2 Video Decoder
NTSC/
PAL To TV
DVD Subpicture OSD Encoder
DSP DEMUX Processing Graphics
To Audio System
Dolby AC3 or
MPEG-2 Audio Decoder
Front Panel
Microcontroller 10:00:23 ||
Courtesy: C-Cube Corporation
DVD Player
Xilinx at Work in High Volume Applications ®
www.xilinx.com
23. DCT/IDCT in DVD/VCD
DVD Players
Xilinx at Work in High Volume Applications ®
www.xilinx.com
24. DCT/IDCT
in Digital Cameras
2-D DCT/IDCT is applied generally on data sets that have a
naturally two-dimensional characteristic, like a digital image
Digital Cameras
Xilinx at Work in High Volume Applications ®
www.xilinx.com
25. Spartan-II DCT/IDCT
Solution
DCT/IDCT Cores
— Available Separately or Combined
AllianceCORE Xentec DCT/IDCT Core
Xilinx at Work in High Volume Applications ®
www.xilinx.com
26. Spartan-II DCT/IDCT
Solution Features
Features Spartan-II
Device XC2S100-6
CLBs 1026
Clock IOBs 1
IOBs 28
Performance (MHz) 33.3
AllianceCORE Xentec DCT/IDCT Core
Xilinx at Work in High Volume Applications ®
www.xilinx.com
27. Spartan-II DCT/IDCT
Solution Performance
Low cost Spartan-II FPGA with soft IP from Xentec has
High Performance
— 180 times faster 32-bit mainstream processor operating at
266MHz
Xilinx at Work in High Volume Applications ®
www.xilinx.com
28. Spartan-II DCT/IDCT
Solution - Features
The Xilinx solution is efficient and cost-effective compared
to DCT/IDCT software solution being run by a high
performance 32-bit processor
The Xilinx Xentec core solution is capable of operating
either as DCT or IDCT by the use of a single mode pin
Xilinx at Work in High Volume Applications ®
www.xilinx.com
29. Summary
DCT/IDCT Solutions are Widely Used in Multimedia,
Video, Audio, and Imaging Applications
The Spartan-II Family has Significant Strengths in its
DCT/IDCT Solution:
— Features
— Performance
— Scalability and Flexibility
— Cost effectiveness
Xilinx at Work in High Volume Applications ®
www.xilinx.com