Shape Adaptive Discrete Cosine Transform for Geometric Partitioning with Adaptive Number of Regions

摘要

The decoder includes circuitry, wherein the circuitry is configured to receive the bitstream, determine a first region, a second region and a third region of the current block according to the geometric partitioning mode, and decode the current block. Related devices, systems, techniques and articles are also described. The decoder may determine, from a signal included in the bitstream, a coding transform type for decoding the first region, the second region and/or the third region, the coding transformation type being at least an inverse block discrete cosine transform and an inverse shape adaptation. characterize the discrete cosine transform, decoding the current block may include using the determined transform type for an inverse transform for each of the first region, the second region and/or the third region.