Video Compression
نویسنده
چکیده
ideo signals used to deliver IPTV and Internet video are always compressed. Comression means reducing the number of bits required to represent the video image. his is an important topic because choosing a suitable compression method can ometimes mean the diff6rence between the success and failure of a video networking project. This chapter begins by explaining the reasons for compression and looks at some of the factors that determine what form of compression is suitable for an application. Then, it examines MPEG video compression, as it is the most widely used technology for video and audio compression. After that, the chapter looks at some of the other compression systems available for use with video and audio signals. The chapter concludes with a brief discussion regarding some of the licenses needed to use various forms of conlpression technology.
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