Encoding method, decoding method, bit stream, encoder, decoder, and storage medium

Abstract

The invention discloses a coding and decoding method, a code stream, a coder, a decoder and a storage medium. The method comprises the following steps: determining a texture feature index of a current block; determining a transformation kernel group of the current block according to the texture feature index; determining a transform kernel of the current block according to the transform kernel group; and determining a transformation coefficient of the current block, performing inverse transformation on the transformation coefficient of the current block according to the transformation core, and determining a residual block of the current block. Therefore, the compression efficiency of inter-frame prediction can be improved.

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