Efficient Motion Estimation in H.264 Reverse Transcoding
Chang-Hong Fu,Yui-Lam Chan,Wan-Chi Siu +2 more
- 12 Nov 2007
- Vol. 5, pp 317-320
TL;DR: A remarkable reduction of computational complexity involved in reverse motion estimation can be achieved by the proposed algorithm with only negligible impact on the rate-distortion performance.
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Abstract: In this paper, we propose a fast reverse motion estimation algorithm with efficient mode decision for reverse transcoding of H.264 bitstream. By analyzing the motion vectors and modes decoded from the forward bitstream, the best mode and motion vector for each backward transcoded macroblock are estimated. A remarkable reduction of computational complexity involved in reverse motion estimation can be achieved by the proposed algorithm with only negligible impact on the rate-distortion performance.
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Citations
Fast block size selection for H.264 video-downsizing transcoding
Zhuo-Yi Lu,Wan-Chi Siu,Ke-Bin Jia +2 more
- 10 May 2010
TL;DR: Experimental results show that the proposed method can reduce the computational complexity dramatically with little compression performance degradation.
4
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Wahab Musa
- 16 Sep 2018
TL;DR: The results reveal that the BNT thin films can crystallize well into a single phase of bismuth layered perovskite structure at 650°C and 700°C, however, a higher annealing temperature results in larger grains and better properties, which should be employed in various sensor applications.
Fast Inter Mode Decision and Motion Estimation Inh.264 Frame-Skipping Transcoding
吕卓逸,贾克斌,萧允治 +2 more
TL;DR: This paper proposes a fast inter mode decision and motion estimation algorithm for H.264 frame-skipping transcoding, improving picture quality and reducing complexity through adaptive motion vector refinement and a new motion compensation algorithm.
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