Systems and methods for motion compensated residual prediction

A video encoder for encoding a video in a bitstream, wherein the video comprises a plurality of pictures, including a current picture and at least one reference picture, each picture comprising blocks of samples, the video encoder being operative to perform functions comprising:

• generating a residual reference picture comprising at least one block, the residual reference picture representing a difference between a corresponding block of the reference picture and a first-order prediction of the reference picture;
• filtering the residual reference picture with a de-noising filter to generate a filtered residual reference picture;
• and
• for at least a current block in the current picture:
• forming a first-order prediction of the current block;
• predicting residuals of the current block from a residual reference block in the filtered residual reference picture using motion-compensated prediction;
• and
• combining the first-order prediction and the predicted residuals to generate a composite prediction signal for the current block.

A video decoder for decoding a video from a bitstream, wherein

• the video comprises a plurality of pictures, including a current picture and at least one reference picture, each picture comprising blocks of samples, the video decoder being operative to perform functions comprising:
• generating a residual reference picture comprising at least one block, the residual reference picture representing a difference between a corresponding block of the reference picture and a first-order prediction of the reference picture;
• filtering the residual reference picture with a de-noising filter to generate a filtered residual reference picture;
• and
• for at least a current block in the current picture:
• forming a first-order prediction of the current block;
• predicting residuals of the current block from a residual reference block in the filtered residual reference picture using motion-compensated prediction;
• and
• combining the first-order prediction and the predicted residuals to generate a composite prediction signal for the current block.