Fast inter-frames pattern chosen algorithm based on H.264

Qiwei Lin; Gui Feng

doi:10.1117/12.740113

19 September 2007 Fast inter-frames pattern chosen algorithm based on H.264

Qiwei Lin, Gui Feng

Proceedings Volume 6683, Satellite Data Compression, Communications, and Archiving III; 66830N (2007) https://doi.org/10.1117/12.740113
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

As we known that under the same image reconstruction quality, the encoding efficiency of H.264 video standard is about 50% higher than that of H.263 standard. But at the same time, this methodology improving the encoding efficiency based on the rate distortion optimizing (RDO) and the multi patterns motion estimating; as a result it is greatly increasing the calculation complexity of encoder, and greatly affects the video compression speed. Therefore, when we estimate motion pattern of a video sequence, if the best predicting pattern can be decided as quickly as possible, and unnecessary predicting pattern searching can be limited or costly computation can be cut down, then it is possible to speed up the motion estimation. Under these thought, a fast inter-frames pattern selecting and motion pattern estimating algorithm was proposed in the paper. Based on the texture feature and local motion character of current macro block (MB), a set of effective predicting patterns were selected. This selection can effectively reduce searching time of follow up predicting pattern; so it can obviously decrease the operation complexity of the encoder, and improve the searching speed for the motion estimating.

Citation Download Citation

Qiwei Lin and Gui Feng "Fast inter-frames pattern chosen algorithm based on H.264", Proc. SPIE 6683, Satellite Data Compression, Communications, and Archiving III, 66830N (19 September 2007); https://doi.org/10.1117/12.740113

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KEYWORDS

Computer programming

Motion estimation

Video

Video coding

Video compression

Standards development

Distortion

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