Research of image compression technology based on MPEG-4

MPEG-4 is one of the most important and influential international standard for multimedia data compression coding in the commercial world, its full name is generic coding of audio and visual objects. It defines the audio, video and other multimedia syntax and decoding process, the transmission on the Internet and a whole set of framework about the interaction between human and media, which covering the vast majority of multimedia applications. Its object-based thought enables it a high compression ratio, good flexibility, scalability and interactivity, and other advantages. This paper combines the practical application background of mobile communications, and carries out a key research on the core part of MPEG-4 standard - video compression coding, on basis of a comprehensive understanding of MPEG-4 standard. Firstly, an in-depth study on the basic principles and algorithm of MPEG-4 digital video standard has been done.