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In the past, efforts to speed up motion estimation for video encoding were directed at finding better predictive search algorithms. Now, they are directed toward the shrewd exploitation of the machine's advanced architectural features such as multimedia extensions, especially for the computation of the error metric which is known to be expensive. In this paper, we extend previous work by further exploring...
We describe a method that considerably improves the computational behaviour of H.264 intra-only encoders. Such intra-only encoders come to use in video-cutting and low-latency video coding where temporal prediction via using inter-frames is no feasible option. We identify the spatial prediction step as the computational bottleneck in intra-only encoders. In this step, the encoder tests various modes...
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