Mode Selection and Optimal Rate Control for Video Coding using an and-or Tree Representation
We propose an AND-OR tree-based approach for structuring a variety of mode selections in a hybrid video coding system. The proposed approach can systematically analyze the input sequence and transform it into an AND-OR tree representation to allocate bits to each node of the tree. The motion vector of our system is estimated in the wavelet domain, where wavelet coefficients in different scales can be obtained by using different wavelets. We demonstrate the performance of the new features, and compare our codec's performance with that of an H.264/AVC-like implementation.