Method and Apparatus for Transform Coding with Block-Level Transform Selection and Implicit Signaling Within Hierarchical Partitioning

摘要

A method for encoding a source picture into an output bitstream using quantized transform coefficients, comprising obtaining, from the source picture, input data located in a transform block, transforming, according to a transform type selected from among a set of transform types, the input data into transform coefficients, quantizing the transform coefficients to generate the quantized transform coefficients, generating index information configured to identify the selected transform type among the set of transform types, determining information to be hidden, where the information to be hidden is at least a part of the index information, and hiding the information to be hidden in the quantized transform coefficients.