ENCODING METHOD, DECODING METHOD, DECODER, ENCODER AND COMPUTER-READABLE STORAGE MEDIUM

Provided in the embodiments of the present application are an encoding method, a decoding method, a decoder, an encoder and a computer-readable storage medium, which can improve the encoding and decoding performance. The decoding method comprises: parsing a code stream to determine coded information corresponding to a second-scale point cloud, and determining a first-scale point cloud; performing local density prediction on the basis of the first-scale point cloud to determine a local density corresponding to first-scale voxels in the first-scale point cloud, and performing occupancy probability prediction on second-scale voxels to determine an occupancy probability corresponding to the second-scale voxels, the second-scale voxels being up-sampling voxels corresponding to the first-scale voxels, and the local density representing the number of occupied second-scale voxels amongst the second-scale voxels corresponding to the first-scale voxels; and, on the basis of the occupancy probability corresponding to th