A sub-mW MPEG-4 motion estimation processor core for mobile video application

Fast global motion estimation for MPEG-4 video compression

This paper presents a fast global motion estimation (GME) algorithm based on gradient methods (GM), which can be used for real-time applications, such as in MPEG4 video compression. This approach improves the existing state-of-the-art GME algorithms by introducing two major modi...cations: ...rst, only a small subset (down-to 3%) of the original image pixels is used in the estimation process. S...

Adaptive motion estimation algorithm for MPEG-4 video coding

This paper presents a gradient based motion estimation algorithm based on shape-motion prediction, which takes advantage of the correlation between neighboring Binary Alpha Blocks (BABs), to match with the Mpeg-4 shape coding case and speed up the estimation process. The PSNR and computation time achieved by the proposed algorithm seem to be better than those obtained by most popular motion est...

A Video Signal Processor Core for Motion Estimation in MPEG2 Encoding

This paper describes the core of a video signal processor dedicated to perform MPEG-2 motion estimation and prediction selection. A mixed Hardware/Software approach based on a small RISC controller was adopted which gives flexibility and robustness in the choice of the algorithms. Hardware optimizations were investigated to implement genetic motion estimation algorithm which appears to be the b...

A Fast Motion Estimation Algorithm for MPEG-4 Shape Coding

A half-pel motion estimation architecture for MPEG-4 applications

This paper presents a novel half-pel motion estimation architecture for MPEG-4 applications. The proposed architecture consists of two parts; interpolation part and full search block matching part. The first part computes the halfpel values by interpolation of the full pixels. The second part searches for the hest match to the reference block using full search block matching algorithm to enhanc...