Digital television uses digital signals and compression to transmit multiple television programs through a single channel, overcoming limitations of analog television. It provides benefits like clearer picture and sound, as well as multicasting which allows broadcasting of multiple programs on one channel simultaneously. Digital television also enables additional services like interactive program guides, electronic shopping, and datacasting simultaneously with video.
Presentation on HDTV Technology and Scanning Techniques
1) Progressive and interlaced
2) Broadcasting System
3) Aspect Ratio
4) Frame Rate
5) Pixels
6) Frame
7) CRT and HDTV
Presentation on HDTV Technology and Scanning Techniques
1) Progressive and interlaced
2) Broadcasting System
3) Aspect Ratio
4) Frame Rate
5) Pixels
6) Frame
7) CRT and HDTV
High-dynamic range (HDR) video is available to consumers today via both streaming services and optical discs. HDR video is a visually compelling experience that the average consumer can readily differentiate from existing HD content. As such, HDR video is expected to drive the next wave of consumer video. HDR TVs are available today, and HDR monitors will be available this year. The availability of these monitors will allow new user experiences on PCs, including true HDR gaming. This presentation describes what exactly HDR is and the challenges of properly displaying it on existing devices (PCs, laptops, phones, and such.) Some of the unique challenges of HDR include needing to convert content into linear light space for proper blending and scaling. This requires substantially more precision in hardware and software than we use for displaying today’s standard dynamic range content.
High-dynamic range (HDR) video is available to consumers today via both streaming services and optical discs. HDR video is a visually compelling experience that the average consumer can readily differentiate from existing HD content. As such, HDR video is expected to drive the next wave of consumer video. HDR TVs are available today, and HDR monitors will be available this year. The availability of these monitors will allow new user experiences on PCs, including true HDR gaming. This presentation describes what exactly HDR is and the challenges of properly displaying it on existing devices (PCs, laptops, phones, and such.) Some of the unique challenges of HDR include needing to convert content into linear light space for proper blending and scaling. This requires substantially more precision in hardware and software than we use for displaying today’s standard dynamic range content.
Data compression has increased by leaps and bounds over the years due to technical innovation, enabling the proliferation of streamed digital multimedia and voice over IP. For example, a regular cadence of technical advancement in video codecs has led to massive reduction in file size – in fact, up to a 1000x reduction in file size when comparing a raw video file to a VVC encoded file. However, with the rise of machine learning techniques and diverse data types to compress, AI may be a compelling tool for next-generation compression, offering a variety of benefits over traditional techniques. In this presentation we discuss:
- Why the demand for improved data compression is growing
- Why AI is a compelling tool for compression in general
- Qualcomm AI Research’s latest AI voice and video codec research
- Our future AI codec research work and challenges
A presentation covering some basic aspects of digital video data and the compression of video images. The ATSC system architecture is shown using the OSI 7-layer model from data communication theory. Video compression techniques are briefly covered.
The TV market is moving rapidly towards high-definition television, HDTV. This change brings truly remarkable
improvements in image quality and color fidelity. HDTV provides up to five times higher resolution
and twice the linear resolution compared with traditional, analog TV. Furthermore, HDTV comes
with wide screen format and DVD-quality audio.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
Delivering Micro-Credentials in Technical and Vocational Education and TrainingAG2 Design
Explore how micro-credentials are transforming Technical and Vocational Education and Training (TVET) with this comprehensive slide deck. Discover what micro-credentials are, their importance in TVET, the advantages they offer, and the insights from industry experts. Additionally, learn about the top software applications available for creating and managing micro-credentials. This presentation also includes valuable resources and a discussion on the future of these specialised certifications.
For more detailed information on delivering micro-credentials in TVET, visit this https://tvettrainer.com/delivering-micro-credentials-in-tvet/
How to Add Chatter in the odoo 17 ERP ModuleCeline George
In Odoo, the chatter is like a chat tool that helps you work together on records. You can leave notes and track things, making it easier to talk with your team and partners. Inside chatter, all communication history, activity, and changes will be displayed.
3. Introduction to Digital Television
Analog television systems are severely limited by
the bandwidth they have available.
Simply put, additional subscription service require
additional bandwidth and if it is not available,
revenue growth is limited.
Digital Station
Analog Station
Ch. 6 Ch. 7 Ch. 8 Ch. 9 Ch. 10 Ch. 11 Ch. 12
6 Mhz 6 Mhz 6 Mhz 6 Mhz 6 Mhz 6 Mhz 6 Mhz
5. Crystal Clear Picture and Sound
Degradation of analog
Signal
ANALOG ANALOG
SIGNAL SIGNAL
Multi path distortion
6. Multicasting
Instead of transmitting
a single program,
broadcasters can use
this digital signal to
transmit – on one
channel- at least four
programs in resolution
of today’s standard-
definition TV.
This is known as the
Multicasting
7. Data Casting
Digital Television also
has the ability to
broadcast data
simultaneously.
This is called data
casting. It means you
will be able to use an
on-screen menu to
access additional
information about the
running program
8. Other Services
Local channels, news and information about area,
Whether report, travel report, national news, home
shopping, games….
Sports service-the latest results, interviews with
personalities, special offer
Home banking, checking your balance, E-mail,
paying bill….etc
In fact in the new world of Digital Television the
only limit on the range of available service will be
the imagination of the service providers.
10. Y-Signal
R-G-B- Camera output
R-Y & B-Y Selection
Weighting Factors
R-Y V & B-YU
U +V QAM C
Y + C Frequency
Interleaving
Composite Colour
Video Signal
11. Digitization of Composite Colour Signal
Video Signal Quantization It has been practically verified
Compression that sampling of the analog
video signal at 256 levels is
sufficient to allow the
reproduced signal to be almost
undetectable form the original
analog signal.
An 8 bits code word is
necessary due to 256 levels.
In the proposed coding scheme
for television signals, black level
corresponds to 64 (code
01000000) and peak white to
level 204 (code 11001100) as
labeled in the figure.
12. Compression
Composite Video signal can be thought of
as an analog compression technique as it
allows colour in the same bandwidth as
monochrome.
Whilst digital compression schemes do exist
for composite video, these effectively put
two compressors in series which is not a
good idea.
So solution MPEG
15. The MPEG is the current standard used for
digital video. In this system, only the
difference between the current frame, and
the next frame is considered.
Block matching algorithms are employed to
detect if an object has move in the scene.
mathematical process called Discrete
Cosine Transform (DCT) is used to
compress the data.
16. Why MPEG?
Two adjacent frames in a motion picture
sequence are usually very identical. Often the
only difference is that some parts of the picture
have shifted slightly between the frames.
17. If the content of the current frame was mostly sent
in the previous frame, why send it again?
Just send the instructions for shifting pieces of the
previous frame to their new position in the current
frame.
If the pixel points in the same area are all very
nearly the same colour why send the same colour
over and over?
Just send the colour for the whole area ones.
22. Conclusion
Digital television has several advantages over traditional TV, the most
significant being use of a smaller channel bandwidth. This frees up
space for more digital channels, other non-television services such as
pay-multimedia services and the generation of revenue from the sales
of frequency spectrum taken by analog TV. As digital becomes more
popular it is likely that the existing analogue services will be removed.
The digital terrestrial set-top-box has been demonstrated at
Doordarshan Delhi by receiving the 5 TV programs and 2 Radio
channels on 516MHz channel frequency using Yagi antenna.
In most 'digitalised' country, the switch-off of all analogue
terrestrial TV broadcasts is scheduled to begin in 2009.