Image motion estimation method and related apparatus

An electronic device comprising:

• one or more processors;
• and
• one or more memories storing a computer program that, when executed by the one or more processors, causes the one or more processors to:
• obtain motion vectors of an object in any two neighboring image frames in a video;
• obtain a plurality of encoding blocks corresponding to the motion vectors of the object in the two neighboring image frames;
• divide the encoding blocks to obtain a first prediction unit, and perform motion search on pixels of the first prediction unit for the encoding blocks based on the motion vectors of the object in the two neighboring image frames to obtain a first difference parameter set corresponding to the motion vectors of the first prediction unit, each first difference parameter corresponding to a motion vector difference of the two neighboring image frames in a pixel of the first prediction unit, and the first prediction unit being obtained by dividing the encoding blocks in a first method;
• divide the encoding blocks to obtain at least two second prediction units, and perform motion search on pixels in the second prediction units for the encoding block based on the first difference parameter set to obtain a second difference parameter set of motion vectors of the second prediction units, each second motion vector corresponding to a motion vector difference of the two neighboring image frames in a pixel of the second prediction units, the second prediction units being obtained by dividing the encoding blocks in a second method, and the second method being different from the first method;
• store a first difference parameter set and a second difference parameter set of each encoding block;
• and
• determine a target prediction unit based on the first difference parameter set and the second difference parameter set of each encoding block, the target prediction unit being a prediction unit in a first image matching motion of a second image, the first image being neighboring the second image and being generated after the second image, and a difference parameter of the target prediction unit being smaller than a difference parameter of a non-target prediction unit.

A computer-readable storage medium storing a computer program that, when executed by one or more processors, causes the one or more processors to:

• obtain motion vectors of an object in any two neighboring image frames in a video;
• obtain a plurality of encoding blocks corresponding to the motion vectors of the object in the two neighboring image frames;
• divide the encoding blocks to obtain a first prediction unit, and perform motion search on pixels of the first prediction unit for the encoding blocks based on the motion vectors of the object in the two neighboring image frames to obtain a first difference parameter set corresponding to the motion vectors of the first prediction unit, each first difference parameter corresponding to a motion vector difference of the two neighboring image frames in a pixel of the first prediction unit, and the first prediction unit being obtained by dividing the encoding blocks in a first method;
• divide the encoding blocks to obtain at least two second prediction units, and perform motion search on pixels in the second prediction units for the encoding block based on the first difference parameter set to obtain a second difference parameter set of motion vectors of the second prediction units, each second motion vector corresponding to a motion vector difference of the two neighboring image frames in a pixel of the second prediction units, the second prediction units being obtained by dividing the encoding blocks in a second method, and the second method being different from the first method;
• store a first difference parameter set and a second difference parameter set of each encoding block;
• and
• determine a target prediction unit based on the first difference parameter set and the second difference parameter set of each encoding block, the target prediction unit being a prediction unit in a first image matching motion of a second image, the first image being neighboring the second image and being generated after the second image, and a difference parameter of the target prediction unit being smaller than a difference parameter of a non-target prediction unit.