Journal of Signal Processing Systems
Fast motion estimation for H.264
Image Communication
Complexity-constrained H.264 HD video coding throughmode ranking
PCS'09 Proceedings of the 27th conference on Picture Coding Symposium
Fast intermode decision via statistical learning for H.264 video coding
MMM'08 Proceedings of the 14th international conference on Advances in multimedia modeling
Temporal error concealment for H.264 using optimum regression plane
MMM'08 Proceedings of the 14th international conference on Advances in multimedia modeling
Macroblock sampling and mode ranking for complexity scalability in mobile H.264 video coding
ICIP'09 Proceedings of the 16th IEEE international conference on Image processing
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Variable block size motion compensation has been adopted by the emerging video coding standard H.264. It can represent the motion characteristic in a macroblock more accurately and, therefore, reduces the prediction error to achieve high compression gains. On the other hand, it causes high computational complexity in motion estimation at the encoder. The motion estimation exhaustively performed over all modes to find the best mode for inter coding is slow and computationally involved. In order to reduce the complexity, we proposed a fast inter mode decision algorithm for H.264 encoder. The proposed method efficiently determines a suitable block mode according to the motion field distribution and correlation within a macroblock. The experimental results show that the proposed method reduces a considerable amount of complexity at encoder, while the rate-distortion performance of the proposed method is comparable to that of full mode search