Point cloud encoding method, point cloud decoding method, encoder, decoder, and storage medium

Abstract

Embodiments of the present application provide a point cloud encoding method, a point cloud decoding method, an encoder, a decoder, and a storage medium. The point cloud decoding method comprises: parsing a code stream, and determining a residual value of an AC coefficient of a current transform block, wherein the current transform block belongs to a first RAHT layer, and the first RAHT layer is any one of a plurality of RAHT layers of a point cloud of a current frame; determining a reconstructed value of the AC coefficient of the current transform block on the basis of the residual value of the AC coefficient of the current transform block; determining a reconstructed attribute value of the current transform block on the basis of the reconstructed value of the AC coefficient of the current transform block; determining whether to perform a filtering operation on the first RAHT layer; and if it is determined to perform the filtering operation on the first RAHT layer, filtering the reconstructed attribute value of the current transform block on the basis of a first group of filtering coefficients.

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