An Efficient Mode Decision Algorithm for H.264/AVC Encoding Optimization
作者： Hanli Wang , Sam Kwong , Chi-Wah Kok
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摘要: The H.264 video coding standard significantly outperforms previous standards in terms of efficiency. However, this comes as a cost extremely high computational complexity due to mode decision where variable block size motion estimation (ME) is employed. In paper, we propose an efficient algorithm jointly optimize and ME. A theoretical analysis performed study the sufficient condition detect all-zero blocks H.264, thus adaptive thresholds are derived early terminate Besides aforementioned termination technique, proposed also introduces temporal-spatial checking, based prediction monotonic error surface methods skip checking unnecessary modes. Experimental results demonstrate that can reduce encoding while maintaining almost same rate distortion (RD) performance original encoder
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