By Charles Poynton
http://www.amazon.com/Digital-Video-Second-Edition-Algorithms/dp/0123919266/
Digital Video and HD: Algorithms and Interfaces presents a one-stop store for the speculation and engineering of electronic video structures. both obtainable to video engineers and people operating in special effects, Charles Poynton’s revision to his vintage textual content covers emergent compression platforms, together with H.264 and VP8/WebM, and augments precise details on JPEG, DVC, and MPEG-2 structures. This version additionally introduces the technical features of file-based workflows and descriptions the rising area of metadata, putting it within the context of electronic video processing.
With the aid of countless numbers of top of the range technical illustrations, this ebook provides the subsequent topics:
* easy options of digitization, sampling, quantization, gamma, and filtering
* ideas of colour technological know-how as utilized to photograph trap and display
* Scanning and coding of SDTV and HDTV
* Video colour coding: luma, chroma (4:2:2 part video, 4fSC composite video)
* Analog NTSC and PAL
* Studio platforms and interfaces
* Compression expertise, together with M-JPEG and MPEG-2
* Broadcast criteria and client video equipment
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Extra resources for Digital Video and HD: Algorithms and Interfaces (The Morgan Kaufmann Series in Computer Graphics) (2nd Edition)
Example text
Formulas It is said that every formula in a book cuts the potential readership in half. I hope readers of this book can compute that after a mere ten formulas my readership would drop to 2-10! I decided to retain formulas, but xxxvii they are not generally necessary to achieve an understanding of the concepts. If you are intimidated by a formula, just skip it and come back later if you wish. I hope that you will treat the mathematics the way that Bringhurst recommends that you treat his mathematical description of the principles of page composition.
Such shrinking and stretching is disastrous to picture integrity – but it has been commonplace since the introduction of HD to consumer television in North America. Failure of content distributors and consumer electronics manufacturers to properly respect picture aspect ratio has been, in my opinion, the most serious engineering error made in the introduction of HD systems to North America. Frame rates Details concerning frame rates and interlace are found in Flicker, refresh rate, and frame rate, on page 83.
If a camera operates at a frame rate different from the AC line frequency, such flashing is liable to “beat” with the frame rate of the camera to produce an objectionable low-frequency strobing. With distribution of video across commodity IP networks to consumer PCs, decoding recovers the native frame rate of the program, but generally no attempt is made to synchronize the display system. Poor motion portrayal often results. 1. Image data is captured, processed, and/or recorded, then presented to a viewer.