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AssigneeDolby Laboratories Licensing Corporation
InventorsTaoran Lu, Fangjun Pu, Peng Yin, Tao Chen, Walter J. Husak
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Given a sequence of images in a first codeword representation, methods, processes, and systems are presented for integrating reshaping into a next generation video codec for encoding and decoding the images, wherein reshaping allows part of the images to be coded in a second codeword representation which allows more efficient compression than using the first codeword representation. A variety of architectures are discussed, including: an out-of-loop reshaping architecture, an in-loop-for intra pictures only reshaping architecture, an in-loop architecture for prediction residuals, and a hybrid in-loop reshaping architecture. Syntax methods for signaling reshaping parameters, and image-encoding methods optimized with respect to reshaping are also presented.
An apparatus for encoding images, the apparatus comprising:
An apparatus for decoding a coded bitstream to generate an output image in a first codeword representation, the apparatus comprising:
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