Method and apparatus for video coding

Abstract

Aspects of the disclosure provide a method and an apparatus including processing circuitry for video decoding. The processing circuitry determines a transform candidate for a block in a current picture from a group of transform sets based on one of a feature vector {right arrow over (F)} or a feature scalar S extracted from reconstructed samples in one or more neighboring blocks of the block. Each transform set of the group of transform sets can include one or more transform candidates for the block. The one or more neighboring blocks can be in the current picture or a reconstructed picture different from the current picture. The processing circuitry reconstructs samples of the block based on the determined transform candidate. The processing circuitry can select a sub-group of transform sets from the group of transform sets based on a prediction mode for the block indicated in coded information for the block and determine the transform candidate from the sub-group of transform sets based on the reconstructed samples.