Dsp-based Video Compression Encoding Mpeg-4 Algorithm Research

Today's digital era, MPEG-4 video compression standard for its low bit rate, high compression lends itself well to the digital transmission of multimedia information in digital TV, video telephony, real-time multimedia monitor, mobile multimedia communications, network video servers, etc. Interactive multimedia system has been widely used.An outline of the MPEG-4 video compression coding of the basic theory, expounded the MPEG-4 video encoding features, an analysis of its key technologies to study the motion compensation and motion estimation of the core algorithm. In-depth study based on genetic algorithms, present a new genetic algorithms: genetic algorithms can be traced back. Carried out in the MATLAB simulation. Performance analysis of algorithms. This algorithm can be obtained to achieve the highest quality encoding, the search points less, PNSR is also high. Low bit rate coding can be realized. Simulation results show effectiveness of the algorithm and system achieve the desired purpose of high-speed performance. Papers on the MPEG-4 video encoding platform, the DSP implementation of the key gives the TMS320DM642 DSP hardware and software development environment, analyzing the code porting and optimization problems. Summed up the design process of harvesting and results of the study, explained the main points of future research projects and the prospect development and application of video compression technology.This exploration and research work of key searching algorithms and genetic algorithms has a strong practical value in practice.