2008, pp 899-904

Video Coding Techniques and Standards

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Synonyms

Video Compression Techniques

Definition

Video coding techniques and standards are based on a set of principles that reduce the redundancy in digital video.

Introduction

Digital video has become main stream and is being used in a wide range of applications including DVD, digital TV, HDTV, video telephony, and teleconferencing. These digital video applications are feasible because of the advances in computing and communication technologies as well as efficient video compression algorithms. The rapid deployment and adoption of these technologies was possible primarily because of standardization and the economies of scale brought about by competition and standardization. Most of the video compression standards are based on a set of principles that reduce the redundancy in digital video.

Digital video is essentially a sequence of pictures displayed overtime. Each picture of a digital video sequence is a 2D projection of the 3D world. Digital video thus is ca ...