Method and related apparatus for motion estimation
A method and related apparatus for motion estimation in a video compression system uses a cost function different from that of the prior art to determine an optimal motion vector for a current encoding block. The cost function takes into account, not only the conventional sum of absolute differences, but also the quantization step and the variation of pixel differences between the current encoding block and a block in a search range in a target picture. Using the disclosed cost function, the result residual corresponding to the optimal motion vector can be better compressed than that of other candidate motion vectors.
Mediatek Incorporation
G H
G06T H04N
inventional inventional
Cheng-Tsai
Ho