2D_BLIT_software_Blackness
•
0 likes•141 views
The document analyzes the performance of single BLT (bit blit) operations for clearing blackness on images of varying heights from 100 to 600 pixels. It finds that the total time for BLT operations increases linearly with image height. On average, each BLT operation takes approximately 1.35 3D GPU clocks or 12.3 nanoseconds per pixel, with some variation depending on the image height.
Report
Share
Report
Share
Download to read offline
Recommended
Sparse coding Super-Resolution を用いた核医学画像処理
This document discusses sparse coding super-resolution (ScSR) for single-frame super-resolution of medical images. ScSR uses a sparse representation prior to reconstruct high-resolution images from low-resolution inputs. The document evaluates ScSR on SPECT images with and without additional anatomical information. ScSR improved image quality over bilinear interpolation as measured by higher PSNR scores and recovered finer details in power spectral density analysis. Adding computed tomography, magnetic resonance, or digital phantom data provided negligible further improvement over ScSR alone.
Efficient Variable Size Template Matching Using Fast Normalized Cross Correla...
In this presentation we propose the parallel implementation of template matching using Full Search using NCC as a measure using the concept of pre-computed sum-tables referred to as FNCC for high resolution images on NVIDIA’s Graphics Processing Units (GP-GPU’s)
Zooming an image in visual basic
The document discusses how to zoom in and out of images in Visual Basic .NET using the csXImage ActiveX control. It describes loading an image, copying it between two instances of the control, and manipulating the visible portion by adjusting the zoom level and scrolling. Key steps include using the LoadDialog method to select a file, calling DrawZoomRect to copy and adjust the image, and modifying the Zoom property and calling DrawZoomRect in response to zoom buttons or scrolling.
Matterport price list
This document summarizes Matterport's pricing for cameras, cloud plans, and additional features. It lists the prices of different camera models in US dollars, British pounds, and Euros. It also outlines the fees for standard and large space processing, cloud plan tiers, add-ons like floor plans and bundles, and hosting fees if one exceeds the included storage for a plan. Free processing credits are included with certain cameras and cloud plans.
Adv comp sys_cuda_kannan
This document summarizes performance testing of grayscale conversion algorithms on GPU versus CPU. It describes using OpenCV to load and process images of varying resolutions on an Nvidia GeForce GPU and AMD CPU. Test results show GPU conversion times remain nearly constant under 0.01ms for all resolutions, while CPU times increase exponentially with resolution, demonstrating the GPU's superior performance for image processing tasks.
DirectX 11 Rendering in Battlefield 3
A technical deep dive into the DX11 rendering in Battlefield 3, the first title to use the new Frostbite 2 Engine. Topics covered include DX11 optimization techniques, efficient deferred shading, high-quality rendering and resource streaming for creating large and highly-detailed dynamic environments on modern PCs.
Texture mapping in_opengl
Texture mapping is a process that maps a 2D texture image onto a 3D object's surface. This allows the 3D object to take on the visual characteristics of the 2D texture. The document discusses key aspects of texture mapping like how textures are represented as arrays of texels, how texture coordinates are assigned to map textures onto object surfaces, and techniques like mipmapping, filtering and wrapping that are used to render textures properly at different distances and orientations. OpenGL functions like glTexImage2D and glTexCoord are used to specify textures and texture coordinates for 3D rendering with texture mapping.
An introduction to Deep Learning with Apache MXNet (November 2017)
The Advent of Deep Learning
Deep Learning Applications
Apache MXNet Overview
Apache MXNet Demos (there will be code, ha!)
Recommended
Sparse coding Super-Resolution を用いた核医学画像処理
This document discusses sparse coding super-resolution (ScSR) for single-frame super-resolution of medical images. ScSR uses a sparse representation prior to reconstruct high-resolution images from low-resolution inputs. The document evaluates ScSR on SPECT images with and without additional anatomical information. ScSR improved image quality over bilinear interpolation as measured by higher PSNR scores and recovered finer details in power spectral density analysis. Adding computed tomography, magnetic resonance, or digital phantom data provided negligible further improvement over ScSR alone.
Efficient Variable Size Template Matching Using Fast Normalized Cross Correla...
In this presentation we propose the parallel implementation of template matching using Full Search using NCC as a measure using the concept of pre-computed sum-tables referred to as FNCC for high resolution images on NVIDIA’s Graphics Processing Units (GP-GPU’s)
Zooming an image in visual basic
The document discusses how to zoom in and out of images in Visual Basic .NET using the csXImage ActiveX control. It describes loading an image, copying it between two instances of the control, and manipulating the visible portion by adjusting the zoom level and scrolling. Key steps include using the LoadDialog method to select a file, calling DrawZoomRect to copy and adjust the image, and modifying the Zoom property and calling DrawZoomRect in response to zoom buttons or scrolling.
Matterport price list
This document summarizes Matterport's pricing for cameras, cloud plans, and additional features. It lists the prices of different camera models in US dollars, British pounds, and Euros. It also outlines the fees for standard and large space processing, cloud plan tiers, add-ons like floor plans and bundles, and hosting fees if one exceeds the included storage for a plan. Free processing credits are included with certain cameras and cloud plans.
Adv comp sys_cuda_kannan
This document summarizes performance testing of grayscale conversion algorithms on GPU versus CPU. It describes using OpenCV to load and process images of varying resolutions on an Nvidia GeForce GPU and AMD CPU. Test results show GPU conversion times remain nearly constant under 0.01ms for all resolutions, while CPU times increase exponentially with resolution, demonstrating the GPU's superior performance for image processing tasks.
DirectX 11 Rendering in Battlefield 3
A technical deep dive into the DX11 rendering in Battlefield 3, the first title to use the new Frostbite 2 Engine. Topics covered include DX11 optimization techniques, efficient deferred shading, high-quality rendering and resource streaming for creating large and highly-detailed dynamic environments on modern PCs.
Texture mapping in_opengl
Texture mapping is a process that maps a 2D texture image onto a 3D object's surface. This allows the 3D object to take on the visual characteristics of the 2D texture. The document discusses key aspects of texture mapping like how textures are represented as arrays of texels, how texture coordinates are assigned to map textures onto object surfaces, and techniques like mipmapping, filtering and wrapping that are used to render textures properly at different distances and orientations. OpenGL functions like glTexImage2D and glTexCoord are used to specify textures and texture coordinates for 3D rendering with texture mapping.
An introduction to Deep Learning with Apache MXNet (November 2017)
The Advent of Deep Learning
Deep Learning Applications
Apache MXNet Overview
Apache MXNet Demos (there will be code, ha!)
Steganography Part 2
This document discusses JPEG steganography techniques. It covers the steps involved in JPEG compression including preprocessing, transformation using discrete cosine transform, quantization, and encoding. It then discusses how information can be hidden in JPEG images using least significant bit steganography by modifying the least significant bit of each pixel. Popular steganography tools for JPEG images are also listed. Methods for detecting hidden information through steganalysis of JPEG images are outlined, including using chi-square attacks and other statistical analyses.
Lighting you up in Battlefield 3
his session presents a detailed overview of the new lighting system implemented in DICEs Frostbite 2 engine and how it enables us to stretch the boundaries of lighting in BATTLEFIELD 3 with its highly dynamic, varied and destructible environments.
BATTLEFIELD 3 goes beyond the lighting limitations found in our previous battlefield games, while avoiding costly and static prebaked lighting without compromising quality.
We discuss the technical implementation of the art direction in BATTLEFIELD 3, the workflows we created for it as well as how all the individual lighting components fit together: deferred rendering, HDR, dynamic radiosity and particle lighting.
Shiny PC Graphics in Battlefield 3
Johan Andersson presented on graphics and rendering techniques for Battlefield 3 and future DICE games. Key points included the focus on PC as the lead platform using DX10/11, major advancements in areas like animation, rendering, lighting, destruction and streaming, and an emphasis on creating simple yet powerful workflows for developers. He discussed techniques for objects, lighting, effects, terrain and post-processing. Graphics are designed to serve aesthetics and gameplay.
GTC 2014 - DirectX 11 Rendering and NVIDIA GameWorks in Batman: Arkham Origins
An extended version from the GDC14 "Deformable Snow Rendering in Batman: Arkham Origins" talk. This talk focuses on several DirectX 11 features developed/integrated in collaboration with NVIDIA. Tessellation and how the integration NVIDIA GameWorks with features such as physically-based particles with PhysX, particle fields with Turbulence, HBAO+, and bokeh DOF is also presented. Other improvements are also showcased: Reoriented Normal Mapping and chroma subsampling pipeline improvements.
Variables
This document contains graphics and audio settings for a game. It lists various graphical options like effects quality, lighting quality, model quality, and resolutions for textures, shadows, and water rendering. It also includes audio settings like the number of sound channels and default sound output.
Report01_rev1
This document describes a project to localize a sound source using time difference of arrival (TDOA) with a linear array of microphones. The time delays between microphones are estimated using the least mean square (LMS) algorithm and the source location is estimated using the steepest descent algorithm. Simulation results show that the estimated time delays from LMS match the theoretical time delays and the estimated source locations converge to the true locations for different setups with varying numbers of microphones and distances between microphones. Increasing the number of microphones or decreasing the distance between microphones improves the accuracy of estimated source location.
Project004
The document discusses image compression using the discrete cosine transform (DCT). It explains that the DCT represents an image as a sum of sinusoids, allowing most visual information to be concentrated in DCT coefficients. This allows for lossy compression by removing insignificant coefficients. The document provides an example MATLAB code to compress an image using DCT. It shows the original 33.8kb image and compressed 13kb image, achieving a compression ratio of 2.6 with minimal quality loss.
Find nuclei in images with U-net
U-Net is a convolutional neural network used for biomedical image segmentation. It takes in an input image and outputs a segmentation map identifying nuclei pixels. The U-Net architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. The model was trained on microscopy images annotated with nuclei masks to achieve an intersection over union score of 85% after data augmentation was applied.
Advanced Real-time Post-Processing using GPGPU techniques
Master thesis about GPGPU post-processing by Per Lönroth and Mattias Unger from Linköping University, Department of Science and Technology.
Image Interpolation Techniques with Optical and Digital Zoom Concepts
Digital image concepts and interpolation techniques for optical and digital zoom are discussed. There are three main types of interpolation used for resizing images: nearest neighbor, bilinear, and bicubic. Nearest neighbor is the simplest but produces the lowest quality, while bicubic is the most complex but highest quality. Optical zoom uses lens magnification before sensing, whereas digital zoom interpolates after sensing, resulting in lower quality than optical zoom. Interpolation methods assign pixel values to new locations during resizing based on weighting patterns around the original pixel values.
OpenGL Texture Mapping
Texture mapping is a method for defining high frequency detail, surface texture, or color information on a computer-generated graphic or 3D model. Its application to 3D graphics was pioneered by Edwin Catmull in 1974.
ISCAS2013_v5
The document proposes a spatially-varying super-resolution method for HDTV. Unlike previous work that assumes a single blur kernel, it models spatially-varying blur. It identifies blur levels using edge properties. An L12TTV deblurring model is used to estimate the latent sharp image. Pixels are then selected from the estimate guided by the blur map to reconstruct the high definition output image. Experimental results show the method outperforms bicubic interpolation and another state-of-the-art method on test images.
Gossip-based resource allocation for green computing in large clouds
This document summarizes a research paper on a gossip-based resource allocation protocol called GRMP-Q for server consolidation in large cloud environments. The protocol aims to minimize active servers and allocate resources fairly while adapting dynamically to load changes. It uses a distributed middleware architecture and gossip algorithms to provide scalability without single points of failure. Simulation results show GRMP-Q reduces power usage by shutting down servers, satisfies demand fairly, and reconfigures with low cost compared to optimal solutions. Future work areas include analyzing convergence, supporting heterogeneity, and expanding the architecture.
Five Rendering Ideas from Battlefield 3 & Need For Speed: The Run
Siggraph 2011 talk by John White (NFS) & Colin Barre-Brisebois (BF3) at EA about rendering & performance
DESIGN OF ISOLATOR (LEAD RUBBER BEARING)
This document provides design parameters and calculations for seismic isolators. It lists soil properties, seismic coefficients, and other factors. It then calculates properties of the isolators including dimensions, material properties, stiffness, yield strength, and displacement. Finally, it performs iterative calculations to determine effective period, damping, displacements, and forces for design basis and maximum considered earthquakes.
Terrain in Battlefield 3: A Modern, Complete and Scalable System
In the session from Game Developers Conference 2011, we'll take a complete look at the terrain system in Frostbite 2 as it was applied in Battlefield 3. The session is partitioned into three parts. We begin with the scalability aspects and discuss how consistent use of hierarchies allowed us to combine high resolutions with high view distances. We then turn towards workflow aspects and describe how we achieved full in-game realtime editing. A fair amount of time is spent describing how issues were addressed.
Finally, we look at the runtime side. We describe usage of CPU, GPU and memory resources and how it was kept to a minimum. We discuss how the GPU is offloaded by caching intermediate results in a procedural virtual texture and how prioritization was done to allow for work throttling without sacrificing quality. We also go into depth about the flexible streaming system that work with both FPS and driving games.
Bp.On.Cuda
This document discusses disparity map generation using GPUs. It provides an overview of disparity maps in stereo vision and describes implementing belief propagation, a stereo matching algorithm, on CUDA-enabled GPUs. The author presents results applying belief propagation to the Tsukuba stereo image pair and discusses avenues for future work, such as improving and accelerating belief propagation and implementing other stereo algorithms in parallel.
Image segmentation
This document discusses different methods of image segmentation: thresholding, edge-based segmentation, and region-based segmentation. It provides details on various thresholding techniques including basic global thresholding, Otsu's method, multiple thresholding, and variable thresholding. For edge-based segmentation, it mentions basic edge detection, the Marr-Hildreth edge detector, and watersheds. Finally, it covers region-based segmentation and provides an algorithm for region growing.
Photogrammetry and Star Wars Battlefront
Presentation by Andrew Hamilton and Ken Brown from DICE at GDC 2016.
Photogrammetry has started to gain steam within the Games Industry in recent years. At DICE, this technique was first used on Battlefield and they fully embraced the technology and workflow for Star Wars: Battlefront. This talk will cover their research and development, planning and production, techniques, key takeaways and plans for the future. The speakers will cover photogrammetry as a technology, but more than that, show that it's not a magic bullet but instead a tool like any other that can be used to help achieve your artistic vision and craft.
Takeaway
Come and learn how (and why) photogrammetry was used to create the world of Star Wars. This talk will cover Battlefront's use of of the technology from pre-production to launch as well as some of their philosophies around photogrammetry as a tool. Many visuals will be included!
Intended Audience
A content creator friendly talk intended for pretty much any developer, especially those involved in 3D content creation. It is not a technical talk focused on the code or engineering of photogrammetry. The speakers will quickly cover all basics, so absolutely no prerequisite knowledge required.
HTML5 game dev with three.js - HexGL
These are the slides of my talk about HexGL at the Adobe User Group meetup in the Netherlands.
More info: http://bkcore.com/blog/general/adobe-user-group-nl-talk-video-hexgl.html
Mi presentacion 1996
La Unión Europea ha propuesto un nuevo paquete de sanciones contra Rusia que incluye un embargo al petróleo ruso. El embargo se aplicaría gradualmente durante seis meses para el petróleo crudo y ocho meses para los productos refinados. El objetivo es aumentar la presión sobre Rusia para que ponga fin a su invasión de Ucrania.
Block_Scaler_Control
The document describes an algorithm for block-scaling control during vertical resizing of images. It involves dividing the target image into vertical blocks, and computing the corresponding input blocks based on the scaling ratio and scan direction. For each target block, it determines the start and end rows of the corresponding input block. It also tracks the start rows of subsequent blocks to account for cases where a block maps to a whole number of input rows. This ensures accurate mapping between input and output blocks during upscaling and downscaling in both vertical up and down scan directions.
More Related Content
What's hot
Steganography Part 2
This document discusses JPEG steganography techniques. It covers the steps involved in JPEG compression including preprocessing, transformation using discrete cosine transform, quantization, and encoding. It then discusses how information can be hidden in JPEG images using least significant bit steganography by modifying the least significant bit of each pixel. Popular steganography tools for JPEG images are also listed. Methods for detecting hidden information through steganalysis of JPEG images are outlined, including using chi-square attacks and other statistical analyses.
Lighting you up in Battlefield 3
his session presents a detailed overview of the new lighting system implemented in DICEs Frostbite 2 engine and how it enables us to stretch the boundaries of lighting in BATTLEFIELD 3 with its highly dynamic, varied and destructible environments.
BATTLEFIELD 3 goes beyond the lighting limitations found in our previous battlefield games, while avoiding costly and static prebaked lighting without compromising quality.
We discuss the technical implementation of the art direction in BATTLEFIELD 3, the workflows we created for it as well as how all the individual lighting components fit together: deferred rendering, HDR, dynamic radiosity and particle lighting.
Shiny PC Graphics in Battlefield 3
Johan Andersson presented on graphics and rendering techniques for Battlefield 3 and future DICE games. Key points included the focus on PC as the lead platform using DX10/11, major advancements in areas like animation, rendering, lighting, destruction and streaming, and an emphasis on creating simple yet powerful workflows for developers. He discussed techniques for objects, lighting, effects, terrain and post-processing. Graphics are designed to serve aesthetics and gameplay.
GTC 2014 - DirectX 11 Rendering and NVIDIA GameWorks in Batman: Arkham Origins
An extended version from the GDC14 "Deformable Snow Rendering in Batman: Arkham Origins" talk. This talk focuses on several DirectX 11 features developed/integrated in collaboration with NVIDIA. Tessellation and how the integration NVIDIA GameWorks with features such as physically-based particles with PhysX, particle fields with Turbulence, HBAO+, and bokeh DOF is also presented. Other improvements are also showcased: Reoriented Normal Mapping and chroma subsampling pipeline improvements.
Variables
This document contains graphics and audio settings for a game. It lists various graphical options like effects quality, lighting quality, model quality, and resolutions for textures, shadows, and water rendering. It also includes audio settings like the number of sound channels and default sound output.
Report01_rev1
This document describes a project to localize a sound source using time difference of arrival (TDOA) with a linear array of microphones. The time delays between microphones are estimated using the least mean square (LMS) algorithm and the source location is estimated using the steepest descent algorithm. Simulation results show that the estimated time delays from LMS match the theoretical time delays and the estimated source locations converge to the true locations for different setups with varying numbers of microphones and distances between microphones. Increasing the number of microphones or decreasing the distance between microphones improves the accuracy of estimated source location.
Project004
The document discusses image compression using the discrete cosine transform (DCT). It explains that the DCT represents an image as a sum of sinusoids, allowing most visual information to be concentrated in DCT coefficients. This allows for lossy compression by removing insignificant coefficients. The document provides an example MATLAB code to compress an image using DCT. It shows the original 33.8kb image and compressed 13kb image, achieving a compression ratio of 2.6 with minimal quality loss.
Find nuclei in images with U-net
U-Net is a convolutional neural network used for biomedical image segmentation. It takes in an input image and outputs a segmentation map identifying nuclei pixels. The U-Net architecture consists of a contracting path to capture context and a symmetric expanding path that enables precise localization. The model was trained on microscopy images annotated with nuclei masks to achieve an intersection over union score of 85% after data augmentation was applied.
Advanced Real-time Post-Processing using GPGPU techniques
Master thesis about GPGPU post-processing by Per Lönroth and Mattias Unger from Linköping University, Department of Science and Technology.
Image Interpolation Techniques with Optical and Digital Zoom Concepts
Digital image concepts and interpolation techniques for optical and digital zoom are discussed. There are three main types of interpolation used for resizing images: nearest neighbor, bilinear, and bicubic. Nearest neighbor is the simplest but produces the lowest quality, while bicubic is the most complex but highest quality. Optical zoom uses lens magnification before sensing, whereas digital zoom interpolates after sensing, resulting in lower quality than optical zoom. Interpolation methods assign pixel values to new locations during resizing based on weighting patterns around the original pixel values.
OpenGL Texture Mapping
Texture mapping is a method for defining high frequency detail, surface texture, or color information on a computer-generated graphic or 3D model. Its application to 3D graphics was pioneered by Edwin Catmull in 1974.
ISCAS2013_v5
The document proposes a spatially-varying super-resolution method for HDTV. Unlike previous work that assumes a single blur kernel, it models spatially-varying blur. It identifies blur levels using edge properties. An L12TTV deblurring model is used to estimate the latent sharp image. Pixels are then selected from the estimate guided by the blur map to reconstruct the high definition output image. Experimental results show the method outperforms bicubic interpolation and another state-of-the-art method on test images.
Gossip-based resource allocation for green computing in large clouds
This document summarizes a research paper on a gossip-based resource allocation protocol called GRMP-Q for server consolidation in large cloud environments. The protocol aims to minimize active servers and allocate resources fairly while adapting dynamically to load changes. It uses a distributed middleware architecture and gossip algorithms to provide scalability without single points of failure. Simulation results show GRMP-Q reduces power usage by shutting down servers, satisfies demand fairly, and reconfigures with low cost compared to optimal solutions. Future work areas include analyzing convergence, supporting heterogeneity, and expanding the architecture.
Five Rendering Ideas from Battlefield 3 & Need For Speed: The Run
Siggraph 2011 talk by John White (NFS) & Colin Barre-Brisebois (BF3) at EA about rendering & performance
DESIGN OF ISOLATOR (LEAD RUBBER BEARING)
This document provides design parameters and calculations for seismic isolators. It lists soil properties, seismic coefficients, and other factors. It then calculates properties of the isolators including dimensions, material properties, stiffness, yield strength, and displacement. Finally, it performs iterative calculations to determine effective period, damping, displacements, and forces for design basis and maximum considered earthquakes.
Terrain in Battlefield 3: A Modern, Complete and Scalable System
In the session from Game Developers Conference 2011, we'll take a complete look at the terrain system in Frostbite 2 as it was applied in Battlefield 3. The session is partitioned into three parts. We begin with the scalability aspects and discuss how consistent use of hierarchies allowed us to combine high resolutions with high view distances. We then turn towards workflow aspects and describe how we achieved full in-game realtime editing. A fair amount of time is spent describing how issues were addressed.
Finally, we look at the runtime side. We describe usage of CPU, GPU and memory resources and how it was kept to a minimum. We discuss how the GPU is offloaded by caching intermediate results in a procedural virtual texture and how prioritization was done to allow for work throttling without sacrificing quality. We also go into depth about the flexible streaming system that work with both FPS and driving games.
Bp.On.Cuda
This document discusses disparity map generation using GPUs. It provides an overview of disparity maps in stereo vision and describes implementing belief propagation, a stereo matching algorithm, on CUDA-enabled GPUs. The author presents results applying belief propagation to the Tsukuba stereo image pair and discusses avenues for future work, such as improving and accelerating belief propagation and implementing other stereo algorithms in parallel.
Image segmentation
This document discusses different methods of image segmentation: thresholding, edge-based segmentation, and region-based segmentation. It provides details on various thresholding techniques including basic global thresholding, Otsu's method, multiple thresholding, and variable thresholding. For edge-based segmentation, it mentions basic edge detection, the Marr-Hildreth edge detector, and watersheds. Finally, it covers region-based segmentation and provides an algorithm for region growing.
Photogrammetry and Star Wars Battlefront
Presentation by Andrew Hamilton and Ken Brown from DICE at GDC 2016.
Photogrammetry has started to gain steam within the Games Industry in recent years. At DICE, this technique was first used on Battlefield and they fully embraced the technology and workflow for Star Wars: Battlefront. This talk will cover their research and development, planning and production, techniques, key takeaways and plans for the future. The speakers will cover photogrammetry as a technology, but more than that, show that it's not a magic bullet but instead a tool like any other that can be used to help achieve your artistic vision and craft.
Takeaway
Come and learn how (and why) photogrammetry was used to create the world of Star Wars. This talk will cover Battlefront's use of of the technology from pre-production to launch as well as some of their philosophies around photogrammetry as a tool. Many visuals will be included!
Intended Audience
A content creator friendly talk intended for pretty much any developer, especially those involved in 3D content creation. It is not a technical talk focused on the code or engineering of photogrammetry. The speakers will quickly cover all basics, so absolutely no prerequisite knowledge required.
HTML5 game dev with three.js - HexGL
These are the slides of my talk about HexGL at the Adobe User Group meetup in the Netherlands.
More info: http://bkcore.com/blog/general/adobe-user-group-nl-talk-video-hexgl.html
What's hot (20)
GTC 2014 - DirectX 11 Rendering and NVIDIA GameWorks in Batman: Arkham Origins
GTC 2014 - DirectX 11 Rendering and NVIDIA GameWorks in Batman: Arkham Origins
Advanced Real-time Post-Processing using GPGPU techniques
Advanced Real-time Post-Processing using GPGPU techniques
Image Interpolation Techniques with Optical and Digital Zoom Concepts
Image Interpolation Techniques with Optical and Digital Zoom Concepts
Gossip-based resource allocation for green computing in large clouds
Gossip-based resource allocation for green computing in large clouds
Five Rendering Ideas from Battlefield 3 & Need For Speed: The Run
Five Rendering Ideas from Battlefield 3 & Need For Speed: The Run
Terrain in Battlefield 3: A Modern, Complete and Scalable System
Terrain in Battlefield 3: A Modern, Complete and Scalable System
Viewers also liked
Mi presentacion 1996
La Unión Europea ha propuesto un nuevo paquete de sanciones contra Rusia que incluye un embargo al petróleo ruso. El embargo se aplicaría gradualmente durante seis meses para el petróleo crudo y ocho meses para los productos refinados. El objetivo es aumentar la presión sobre Rusia para que ponga fin a su invasión de Ucrania.
Block_Scaler_Control
The document describes an algorithm for block-scaling control during vertical resizing of images. It involves dividing the target image into vertical blocks, and computing the corresponding input blocks based on the scaling ratio and scan direction. For each target block, it determines the start and end rows of the corresponding input block. It also tracks the start rows of subsequent blocks to account for cases where a block maps to a whole number of input rows. This ensures accurate mapping between input and output blocks during upscaling and downscaling in both vertical up and down scan directions.
Shereef_Color_Processing
This document describes a video color processing algorithm that aims to improve color accuracy and image quality on mobile devices. It discusses developing algorithms to enable color enhancements without distortions, adapting to viewing conditions like ambient light, and accurately reproducing colors on wide gamut displays. The algorithm uses the CIECAM02 perceptual color model and involves offline computation of various parameters to transform color spaces and enable color and contrast processing.
Cara membuat blog
Dokumen tersebut memberikan informasi tentang blog, termasuk definisi, fungsi, dan langkah-langkah membuat blog. Blog didefinisikan sebagai kumpulan website pribadi yang memungkinkan penulisnya menampilkan berbagai jenis konten secara mudah. Fungsi blog dapat berupa media satu arah, dua arah, atau berbagai arah untuk tujuan tertentu seperti informasi dan promosi. Langkah-langkah membuat blog meliputi membuat ak
Architectural_Synthesis_for_DSP_Structured_Datapaths
This document discusses architectural synthesis of DSP structured datapaths. It provides an overview of the architectural level synthesis problem and subtasks like scheduling, binding, and architecture optimization. The document describes using novel mathematical programming formulations to optimize performance and structural complexity for DSP synthesis. It also discusses techniques to improve the solution time for integer linear programming formulations, and provides results for typical high-level synthesis benchmarks.
Windows_Scaling_2X_Speedup
This document describes a speed-up technique for a Windows image scalar algorithm. It involves detecting when an output pixel generation cycle will be immediately followed by an input pixel consumption cycle. In this case, the cycles can be merged to improve performance. Specifically:
- During an output cycle, the algorithm checks if the remaining input fragment after subtracting the output fragment is less than the inverse scale factor.
- If so, the input pixel is fully consumed in this merged cycle. The accumulator is updated, the output pixel is produced, and a new input pixel is fetched.
- This avoids retaining the input pixel for an extra cycle and improves efficiency, especially for decimation cases where an input pixel often contributes to multiple
Temporal_video_noise_reduction
The document describes a video noise reduction system that uses an adaptive recursive filter. It averages a portion of the input frame with a delayed frame to reduce noise while preserving edges and details where there is no motion. The amount of noise reduction depends on the number of frames averaged and a parameter k that adapts to the average noise level. It also uses adaptive coring thresholds based on measured noise levels to determine whether pixels are filtered, bypassing the filter for large differences likely due to motion rather than noise. The system architecture includes components for YC separation, noise measurement, filtering, and output formatting. Performance results show improved noise reduction over time as more frames are averaged while minimizing ghosting artifacts from motion.
2DCompsitionEngine
The 2D composition engine provides the following key capabilities in 3 sentences or less:
It performs 2D graphics operations like block copy, rotation, scaling, color space conversion, alpha blending, and ROP operations. It supports various image formats and color spaces. The architecture includes a core processing unit with functional blocks for scaling, rotation, Porter-Duff compositing, and ROP, and it interfaces with external memory and clients through a VPDMA unit.
2D_block_scaling_Software
This document describes software for 2D block scaling and rotation control. It includes a top level function for scaling and rotating images and describes the dependencies and sub-functions. It focuses on vertical block scaling control, explaining how it determines the number of vertical blocks, initializes starting/ending rows for input/output blocks, and adjusts these values based on scaling factors and scan direction.
CIECAM02_Color_Management
The document discusses color processing using the CIECAM02 color appearance model. It begins with an agenda that covers challenges, color spaces like RGB, XYZ, LMS, and CIECAM02. It then explains CIECAM02 and its inverse, how they model human color perception and account for viewing conditions. The document discusses color processing techniques like contrast enhancement, saturation adjustment, hue manipulation, and gamut mapping to handle out-of-gamut colors. It aims to perform color processing and management across the color reproduction chain from capture to display in a perceptually accurate manner.
2D_BitBlt_Scale
The document compares the 2DBitBlt resampling scaler architecture to other scaling architectures. 2DBitBlt resampling uses a hardware efficient algorithm adapted from image warping with weighted resampling and no power of 2 limitation. It performs anti-aliasing as part of the algorithm and has potential for parallel processing. Charts show 2DBitBlt resampling outperforming polyphase and bicubic scaling in terms of aliasing, while being simpler with a single line buffer. While images may be softer than bicubic, it has advantages of guaranteed anti-aliasing and better performance for higher decimation ranges.
High_Level_Synthesis_of_DSP_Archiectures_Targeting_FPGAs
This document is a thesis submitted by Shereef B. M. Shehata to Concordia University in 1997 for the degree of Doctor of Philosophy in Electrical and Computer Engineering. The thesis proposes a technique for high level synthesis of digital signal processing cores targeting field programmable gate arrays (FPGAs). The technique aims to optimize the total execution time of the synthesized architecture using integer linear programming while accounting for the structural characteristics of FPGAs early in the synthesis process. This includes optimizing interconnect usage and estimating system clock duration.
The_Mismatch_Noise_Cancellation_Architecture
The document describes the Mismatch Noise Cancellation (MNC) architecture. The key components of the MNC architecture are:
1. A pseudo-random number generator that generates random binary sequences.
2. A mismatch estimation block that estimates mismatches.
3. A noise cancellation block that corrects the effects of mismatches.
4. Synchronization elements that synchronize data flow.
Shereef_MP3_decoder
MP3 Audio Decoding involves perceptual audio encoding using psychoacoustic analysis and quantization. It uses a filter bank to split audio into 32 subbands and a hybrid filter bank combining MDCT and traditional filter banks. Quantization and encoding involves bit allocation across scalefactor bands based on masking thresholds from the psychoacoustic model. The decoder reconstructs audio using inverse quantization and filtering.
Inertial_Sensors
Inertial sensors use a mass-spring system where a proof mass is suspended by a spring and responds to input forces. The displacement of the mass is measured to sense the force. Forces can be applied through electrostatic transduction. Capacitive sensing is commonly used to measure the displacement of the mass. The system acts as a second-order dynamical system where the input force is transduced to mass displacement which is then transduced to an output charge. Key parameters that impact sensor performance include the transduction gain and damping forces.
Gyroscope_sensors
Gyroscope sensors measure angular velocity by detecting the Coriolis effect on a vibrating mass. They have specifications including measurement range, number of sensing axes, nonlinearity, temperature range, and noise parameters. MEMS gyroscopes typically use a vibrating proof mass driven electrostatically while rotation is detected via sense electrodes measuring the Coriolis-induced deflection perpendicular to the drive mode. The Coriolis effect causes an apparent deflection in a rotating reference frame due to inertial forces.
Viewers also liked (18)
Architectural_Synthesis_for_DSP_Structured_Datapaths
Architectural_Synthesis_for_DSP_Structured_Datapaths
High_Level_Synthesis_of_DSP_Archiectures_Targeting_FPGAs
High_Level_Synthesis_of_DSP_Archiectures_Targeting_FPGAs
2D_BLIT_software_Blackness
- 1. Single BLT analysis (using 3D engine) M1: Clear: Blackness BLT Shereef Shehata
- 2. M1: Clear Blackness BLT single BLT (Total Blitting Time us) Fixed Image Height = 100 pixels Total Time Linear fit: Intercept= 267.5754 us, Slope = 1.3689 us/(100 pixels) = 13.7 ns/pixel = 1.507 3D GPU Clocks/pixel
- 3. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Fixed Image Height = 100 pixels
- 4. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Fixed Image Height = 100 pixels
- 5. M1: Clear Blackness BLT single BLT (Total Blitting Time us) Fixed Image Height = 200 pixels Total Time Linear fit: Intercept= 288.0929 us, Slope = 2.5136 us/(200 pixels) = 12.6 ns/pixel = 1.386 3D GPU Clocks/pixel
- 6. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Fixed Image Height = 200 pixels
- 7. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Fixed Image Height = 200 pixels
- 8. M1: Clear Blackness BLT single BLT (Total Blitting Time us) Fixed Image Height = 300 pixels Total Time Linear fit: Intercept= 302.9406 us, Slope = 3.6670 us/(300 pixels) = 12.2 ns/pixel = 1.342 3D GPU Clocks/pixel
- 9. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Fixed Image Height = 300 pixels
- 10. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Fixed Image Height = 300 pixels
- 11. M1: Clear Blackness BLT single BLT (Total Blitting Time us) Fixed Image Height = 400 pixels Total Time Linear fit: Intercept= 319.5706 us, Slope = 4.8350 us/(400 pixels) = 12.0876 ns/pixel = 1.329 3D GPU Clocks/pixel
- 12. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Fixed Image Height = 400 pixels
- 13. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Fixed Image Height = 400 pixels
- 14. M1: Clear Blackness BLT single BLT (Total Blitting Time us) Fixed Image Height = 500 pixels Total Time Linear fit: Intercept= 357.2030 us, Slope = 6.1406 us/(500 pixels) = 12.2811 ns/pixel = 1.35 3D GPU Clocks/pixel
- 15. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Fixed Image Height = 500 pixels
- 16. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Fixed Image Height = 500 pixels
- 17. M1: Clear Blackness BLT single BLT (Total Blitting Time us) Fixed Image Height = 600 pixels Total Time Linear fit: Intercept= 345.9043 us, Slope = 7.3574 us/(600 pixels) = 12.2623 ns/pixel = 1.348 3D GPU Clocks / pixel
- 18. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Fixed Image Height = 600 pixels
- 19. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Fixed Image Height = 600 pixels
- 20. M1: Clear Blackness BLT single BLT (Per Pixel 3D GPU clocks) Top View Mean = 1.9685 3D GPU clock, Median = 1.6241, Std_Dev = 1.1241
- 21. M1: Clear Blackness BLT single BLT (Per Pixel Time in ns) Top View Mean = 17.8955 ns , Median = 14.7648ns, Std_Dev = 10.2189