Method, Apparatus, and Circuitry of Noise Reduction

An apparatus for noise reduction, comprising:

• a motion estimation unit, for identifying a plurality of candidate matching blocks in a reference frame for a current patch;
• a filtering unit, for obtaining at least one filtering result based on a plurality of pixels of the plurality of candidate matching blocks;
• a compensation unit, for determining at least one reference block from a plurality of candidate motion vectors;
• and
• a noise reduction unit, for generating a de-noised patch for the current patch according to the at least one filtering result, a spatial noise reduction patch and a temporal noise reduction patch;
• wherein the spatial noise reduction patch is with a spatial noise reduction score and the temporal noise reduction patch is with a temporal noise reduction score.

A circuitry for noise reduction, comprising:

• a motion estimation circuit, for identifying a plurality of candidate matching blocks in a reference frame for a current patch;
• a filter circuit, coupled to the motion estimation circuit, for obtaining at least one filtering result based on a plurality of pixels of the plurality of candidate matching blocks;
• a motion compensation circuit, coupled to the motion estimation circuit, for determining at least one reference block from a plurality of candidate motion vectors;
• and
• a noise reduction circuit, coupled to the motion estimation circuit and the motion compensation circuit, for generating a de-noised patch for the current patch according to the at least one filtering result, a spatial noise reduction patch and a temporal noise reduction patch;
• wherein the spatial noise reduction patch is with a spatial noise reduction score and the temporal noise reduction patch is with a temporal noise reduction score.