3-dtv, hdtv,uhdtv by- abhinav kumar jha submitted to- roll no. 12152001 dr. deepak kedia ece depatment

A Seminar presentation on 3-dtv, hdtv & uhdtv

by- abhinav kumar jha submitted to- roll no. 12152001 dr. deepak kedia ece -1 Mr. aditya kumr ece dept. gjus&t hisar

outlinesCommon terms3-D TV Overview Introduction of 3 D TV History of 3 D TV Why 3 D TV How 3 D TV worksHD TV Overview Introduction of HD TV History of HD TV Why HD TV How HD TV worksUHD TV Overview Introduction of UHD TV History of UHD TV Why UHD TV How UHD TV worksFuture of UHD TVReferences

Common Terms ResolutionThe resolution of a television is the number of pixels in each dimension that the TV can display natively.The higher the resolution, the more details the picture has.

ASPECT RATIO

The aspect ratio of an image describes the proportional relationship between it width and its height.

5

introduction 3D TV is an emerging technology that allows consumers to enjoy three dimensional movies, television programs and video games in their homes. Several companies have developed viable 3D technology for the home theater environment, but the reality of seeing 3D TV in the average household is probably years away. That's primarily because the technology requires the purchase of new television equipment, including a 3D-ready TV and a 3D-capable Blu-ray player. A number of TV manufacturers, including Panasonic , Sony and Samsung , are manufacturing 3D TVs, and their technology is not standardized. At this point, its anyones guess whose 3D TV technology will have the greatest long-term success, but the Blu-ray 3D standards are platform agnostic, meaning 3D Blu-ray discs should play on any manufacturer's 3D-enabled set.

history Thestereoscopewas first invented by Sir Charles Wheatstone in 1838.It showed that when two pictures are viewed stereoscopically, they are combined by the brain to produce 3D depth perception. The stereoscope was improved by Louis Jules Duboscq, and a famous picture of Queen Victoria was displayed at The Great Exhibition in 1851. In 1855 theKinematoscopewas invented. In the late 1890s, the British film pioneer William Friese-Greene filed a patent for a 3D movie process. On 10 June 1915, former Edison Studios chief director Edwin S. Porter and William E. Waddell presented tests in red-green anaglyph to an audience at the Astor Theatre in New York City and in 1922 the first public 3D movie The Power of Love was displayed.

Right perspectiveLeft perspectiveParallax barrier (No glasses)Two images with different perspectives are interlaced onto a screen simultaneously.A filter known as a parallax barrier, has a series of precision slot that allows eye to see a different set of pixels for each perspective.AA

LCD PanelParallax barrierSection A-AYour brain process those images into one image to produce the illusion of 3D space.

Why 3 d TV The evolution of visual media such as cinema and television is one of the major hallmarks of our modern civilization. In many ways, these visual media now define our modern life style. Many of us are curious: what is our life style going to be in a few years? What kind of films and television are we going to see? Although cinema and television both evolved over decades, there were stages, which, in fact, were once seen as revolutions.At first, films were silent, then sound was added; Cinema and television were initially black-and-white, then color was introduced;Computer imaging and digital special effects have been the latest major novelty.

How 3 d TV work Figure shows a schematic representation of our 3D TV system. The acquisition stage consists of an array of hardware synchronized cameras. Small clusters of cameras are connected to producer PCs. The producers capture live, uncompressed video streams and encode them using standard MPEG coding. The compressed video streams are then broadcast on separate channels over a transmission network, which could be digital cable, satellite TV, or the Internet. On the receiver side, individual video streams are decompressed by decoders. The decoders are connected by network (e.g., gigabit ethernet) to a cluster of consumer PCs. The consumers render the appropriate views and send them to a standard 2D, stereo-pair 3D, or multiview 3D display.

introductionHigh-definition television(HDTV) provides a resolution that is substantially higher than that of standard-definition television. HDTV may be transmitted in various formats:1080p: 19201080p: 2,073,600 pixels (~2.07 megapixels) perframe 1080i: 19201080i: 1,036,800 pixels (~1.04 MP) perfieldor 2,073,600 pixels (~2.07 MP) per frame.Some countries also use a non-standard resolution, such as 14401080i: 777,600 pixels (~0.78 MP) per field or 1,555,200 pixels (~1.56 MP) per frame 720p: 1280720p: 921,600 pixels (~0.92 MP) per frameThe letter "p" stands forprogressive scan, while "I indicatesinterlaced.When transmitted at two megapixels per frame, HDTV provides about five times as many pixels as SD (standard-definition television).

history

WHY HDtv

To Overcome Limitationsof Analog TelevisionNoise free picturesHigher resolution imagesWidescreen / HDTVNo GhostingEnhanced Sound ServicesOther Data services.14

14

HDTV FeaturesProvides up to 60 frames/sec screen writing rate Uses MPEG-2 data compressionsource info data rate is 1.2Gbpsbroadcast data rate is 20MbpsSquare pixels 1/4 the size of analog TVs pixels

16TYPE OF HDTVTypeAdvantageDisadvantageDirect View (CRT)CheaperHeavy, max screen size limited, soon to be obsoleteLCDCompetitive price, suitable for rooms with high ambient lightMotion blur more apparent than PlasmaPlasmaBrighter colors, less motion blur, wider viewing angleMore power consumption than LCD, less competitive priceRear ProjectionLarger screen size at lower costMore bulky then flat panel, more components to failFront ProjectionBest solution for screens over 60 inchesCostly installation, not suitable for rooms with high ambient light

16

HDTV & SDTV Comparison

18

HOW HD WORK

Connecting To Digital TV

Digital Signal from Cable or Satellite

COAXComposite or S-Video From VCRVCR

Cable or SatelliteComposite or S-Video

or

ComponentOr HDMI

19

Future of HDDEC 2012: All commercial stations must begin digital broadcasts

Move will be cheaper, quicker, and easier as products and services become more widespread and people grow accustomed to the new technology.

Super HD TV

introduction 4K is the new big thing in display technology.

4K denotes a very specific display resolution of 4096 x 2160 megapixels and aspect ratio (16:9)

4K is also known's as Ultra High Definition(UHD).

4k TVs have increased their market share in 2014.

Every brand has a few of them now, but the prices are still above mainstream level.

It will soon become a format for both broadcast TV and Blue ray.

history4K format was proposed by NHK Science & Technology Research Laboratories and defined and approved by the International Telecommunication Union(ITU)The first commercially available 4K camera for cinematographic purposes was the Dalsa Origin, released in 2003The projection of films at 4K resolution at cinemas began in 2011 .The first 4K home theatre projector was released by Sony in 2012.YouTube began supporting 4K for video uploads in 2010Users could view 4K video by selecting "Original" from the quality settings.In November 2013, YouTube started to use the VP9 video compression standardVP9 is being developed by Google, which owns YouTube

Why uhd TV4K standard will address the demand for vastly improved resolution in professional devices such as broadcast and cinema quality cameras, projectors, and displays.The 4k revolution isn't just about quadrupling resolution, it also supports faster frame rates, insane contrast dynamics ,extended colours and variety of viewing distances on different screen sizes.

1080p vs. 4K resolutionA High Definition TV with 1080p resolution is composed of two million pixels (1920 x 1080), while a 4K TV (aka Ultra High Definition) has over eight million pixels (4096 x 2160). Therefore, 4K has around four times more resolution than 1080p and produces a clearer picture.Increasing pixel density leads to closer viewing distance without the pixel grid becoming obvious to viewer.A 4K image - or Ultra HD - enables user to sit 1.6m from the screen.

4K Resolution (Ultra HD)

Ultra HD Technical Details

ITU Recommendation for Ultra HDTVITU-R Recommendation BT.2020 (also known as Rec.2020)was posted on the International Telecommunication Union(ITU) website on August 23, 2012.Rec.2020 defines various aspects ofultra high definition televisionsuch asdisplay resolution,frame rate,chrome sub sampling,colour depth, andcolour space.

REC. 2020 Standard (Contd.)In coverage of the CIE 1931 color space:Rec. 2020 color space covers 75.8%.Digital cinema reference projector color space covers 53.6%.Adobe RGB color space covers 52.1%.Rec. 709 color space covers 35.9%.

Growth of 4K

referencesAKELEY, K., WATT, S., GIRSHICK, A., AND BANKS, M. 2004. A stereo display prototype with multiple focal distance. To appearing ACM Transaction on Graphics (Aug.).JAVIDI, B., AND OKANO, F., Eds. 2002. Three-Dimensional Television, Video, and Display Technologies. Springer-Verlag.The Grand Alliance, Grand Alliance HDTV System Specification, Version 2.0, December 7, 1994. (http://vera.inforamp.net/~poynton/Poynton-ga-hdtv.html)Advisory Committee on Advanced Television Service, Federal Communications Commission, ATV system recommendation, IEEE Transactions on Broadcasting, vol. 39, no. 1, pp. 2 - 245, 4K resolution, http://en.wikipedia.org/wiki/4K_resolution.http://en.wikipedia.org/wiki/File:CIExy1931_Rec_2020_and_Rec_709.svgRec. 2020, http://en.wikipedia.org/wiki/Rec._2020 Ultra high definition television, http://en.wikipedia.org/wiki/Ultra_high_definition_television Ultra HD and 4K TV: Everything you need to know, http://www.techradar.com/news/home-cinema/high-definition\\ultra-hd-everything-you-need-to-know-about-4k-tv-1048954 March 1993.

Thanks to all