Method and apparatus for video coding

A method for video decoding in a decoder, comprising:

• decoding encoding information for a block of a picture in a coded video bitstream, the encoding information indicating a combination of a position of a sub-region in the block and a relative size of the sub-region with respect to the block, wherein first samples inside the sub-region are reconstructed using residue data of the first samples, second samples of the block that are outside of the sub-region are reconstructed without residue data, and the combination of the position and the relative size is one of multiple combinations of different positions and different relative sizes;
• reconstructing the first samples of the block that are inside the sub-region using the residue data of the first samples;
• and
• reconstructing the second samples of the block that are outside of the sub-region without residue data.

An apparatus, comprising processing circuitry configured to:

• decode encoding information for a block of a picture in a coded video bitstream, the encoding information indicating a position of a sub-region in the block and a position of an additional sub-region in each of at least one neighboring block of the block, a combined sub-region including the sub-region and the additional sub-region in each of the at least one neighboring block being at a center of a combined block including the block and the at least one neighboring block;
• reconstruct first samples that are inside the combined sub-region using residue data of the first samples;
• and
• reconstruct second samples that are outside of the combined sub-region in the combined block without residue data.