Standard Codecs by M. Ghanbari

By M. Ghanbari

An absolutely revised and considerably up to date second version of the best-selling name: 'An creation to straightforward Codecs', (IEE 1999, most sensible e-book of the yr 2000 by way of IEE) this ebook discusses the expansion of electronic tv expertise and the revolution in photo and video compression (such as JPEG2000, broadcast television, video phone), highlighting the necessity for standardisation in processing static and relocating photos and their trade among laptop systems.ITU and ISO/IEC criteria are actually commonly permitted within the picture/video coding field.This booklet offers an authoritative clarification of photograph and video coding algorithms, operating from easy rules via to the complex video-compression platforms now being constructed. considered one of its major pursuits is to explain the explanations at the back of the advent of a regular codec for a particular software and its selected parameter. This booklet will let readers to understand the basics had to layout a video codec for any given program and may turn out to be a priceless source for engineers operating during this field.Also available:Telecommunication Networks, second variation - ISBN 9780852968840Telecommunications site visitors, price lists and prices - ISBN 9780863411458

Show description

Read Online or Download Standard Codecs PDF

Best & telecommunications books

Spectral Analysis: Parametric and Non-Parametric Digital Methods

This ebook bargains with those parametric equipment, first discussing these in accordance with time sequence versions, Capon's approach and its variations, after which estimators in response to the notions of sub-spaces. despite the fact that, the ebook additionally offers with the conventional "analog" equipment, now referred to as non-parametric tools, that are nonetheless the main familiar in functional spectral research.

A Brief History of the Future: From Radio Days to Internet Years in a Lifetime

An intimate, gloriously written examine the communications revolution and the way it has spread out the area. the web is the main impressive factor humans have outfitted because the pyramids. A millennium from now, historians will glance again at it and surprise humans built with such clumsy instruments succeeded in growing the sort of leviathan.

The Communications Toolkit: How to Build and Regulate Any Communications Business

Even if phone, cable, broadcast, print, and web businesses are altering at a phenomenal price, the basics of communications, networks, and festival have remained consistent. This booklet presents the instruments essential to construct lasting, versatile recommendations to outlive and develop in those occasions of transition.

Essentials of LTE and LTE-A (The Cambridge Wireless Essentials Series)

This useful, one-stop advisor will quick deliver you in control on LTE and LTE-Advanced. With every little thing you want to learn about the speculation and expertise at the back of the factors, this can be a must-have for engineers and bosses within the instant undefined. • First ebook of its type describing applied sciences and approach functionality of LTE-A • Covers the evolution of electronic instant know-how, fundamentals of LTE and LTE-A, layout of downlink and uplink channels, multi-antenna concepts and heterogeneous networks • Analyzes functionality merits over competing applied sciences, together with WiMAX and 802.

Extra info for Standard Codecs

Example text

5 Problems 1. In a PAL system, determine the values of the three colour primaries R, G and B for the following colours: red, green, blue, yellow, cyan, magenta and white. 2. Calculate the luminance and chrominance values of the colours in problem 1, if they are digitised into 8 bits, according to CCIR-601 specification. 3. Calculate the horizontal scanning line frequency for CCIR-601/625 and CCIR601/525 line systems and hence their periods. 4. 5 MHz sampling rate. Find the number of pixels per scanning line.

However, in comparing codecs, PSNR or any objective measure should be used with great care to ensure that the types of coding distortions are not significantly different from each other. For instance, objective results from the blockiness distortion produced by the block-based video codecs can be different from the picture smearing distortion introduced by the filter-based codecs. The fact is that even the subjects may interpret these distortions differently. It appears that expert viewers prefer blockiness distortion to the smearing, and nonexperts’ views are opposite!

B. Find such an expression for PSNR. c. Calculate the minimum bit per pixel required for quantising video, such that PSNR is better than 58 dB. (Hint: the mean-squared quantisation error of a uniformly quantised waveform with step size D is D2/12) References 1. 2. 3. 4. 5. 6. 7. N. : Video codec standardisation in CCITT study group XV. Signal Process. , 1989, 1, pp. , GHANBARI, M. : ‘An objective measurement tool for MPEG video quality’. , 1998, 7, pp. 279–294 Chapter 3 Principles of video compression The statistical analysis of video signals indicates that there is a strong correlation both between successive picture frames and within the picture elements themselves.

Download PDF sample

Rated 4.84 of 5 – based on 35 votes