Video encoder and decoder for predictive partitioning

A video decoder, the video decoder being configured to:

• obtain difference information;
• select at least one reference picture and a plurality of blocks in the at least one reference picture;
• calculate, for each selected block, a projected location in a current picture based on a motion vector associated to the selected block in the reference picture;
• determine each selected block, of which the projected location spatially overlaps with the block in the current picture, to be a reference block;
• generate for at least one reference block a partitioning predictor for the current block based on partitioning information associated to the at least one reference picture;
• and
• partition the block in the current picture based on the partitioning predictor and the difference information.

A video encoding method, the method comprising the steps of:

• selecting at least one reference picture and a plurality of blocks in the at least one reference picture;
• calculating, for each selected block, a projected location in a current picture based on a motion vector associated to the selected block;
• determining each selected block, of which the projected location spatially overlaps with the block in the current picture, to be a reference block;
• and
• generating for at least one reference block a partitioning predictor for the current block based on partitioning information associated to the at least one reference picture.

A video decoding method, the method comprising the steps of:

• receiving difference information;
• selecting at least one reference picture and a plurality of blocks in the at least one reference picture;
• calculating, for each selected block, a projected location in a current picture based on a motion vector associated to the selected block;
• determining each selected block, of which the projected location spatially overlaps with the block in the current picture, to be a reference block;
• generating for at least one reference block a partitioning predictor for the current block based on partitioning information associated to the at least one reference picture;
• and
• partitioning the block in the current picture based on the partitioning predictor and the difference information.