Motion estimation and compensation costs the most resource in MPEG-4 encoder and decoder, and people are always seeking the emulative algorithm of motion estimation and compensation.
运动估计和补偿在MPEG - 4编码器和解码器中占用资源最多，人们直寻求较有竞争力的运动估计和补偿的算法。
This paper research the MPEG-4 standard and realize the software prototype of the MPEG-4 video codec. The paper emphasize two key techniques in MPEG-4 encoder: Motion Estimation and Bit Rate Control.
本论文研究了MPEG - 4标准，在实现MPEG - 4视频编解码器软件原型的基础上，重点研究了编码过程中的两项关键技术：运动估计和码率控制。
Later this paper implements the software of modified video encoder and decoder of MPEG-4 using VC on PC platform, which verifies feasibility of modified algorithms.
随后，本文在PC机上采用VC编写了改进后的MPEG - 4视频编码器和解码器的软件，验证了对算法改进的可行性。
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