Method and apparatus for transform coding using block level transform selection and implicit signaling in hierarchical partitioning

摘要

The present invention relates to a method 700 for encoding a source picture 101 into an output bitstream 114 using quantization transform coefficients 112, -A step 701 of obtaining the input data 303 located in the transform block (TU) from the source pictures 101 and 301, -A step 702 of transforming the input data 303 into transform coefficients 110, 306, 311 according to the transform type selected from the set of transform types 305, 310, -Quantizing (703) the transform coefficients (110, 306, 311) to generate the quantization transform coefficients (112, 308, 313), -Generating 704 index information adapted to identify a transform type selected from the set of transform types 305, 310, -Determining the information to be concealed (705)-the information to be concealed is at least part of the index information -, and -Concealing (706) the information to be concealed in the quantization transform coefficients (112, 308, 313).