Method and device for obtaining motion vector of video image

A video processing method comprising:

• obtaining motion information of a left neighboring block of a current image block, the current image block being divided into one or more sub-blocks each having a size of 8×8 pixels;
• and
• in response to the left neighboring block satisfying a preset condition:
• determining, in a collocated frame of the current image block, a related block of one sub-block of the one or more sub-blocks according to a motion vector of the left neighboring block, the preset condition including that a reference image of the left neighboring block is same as the collocated frame of the current image block;
• and
• determining a motion vector of the one sub-block according to a motion vector of the related block of the one sub-block, to perform encoding/decoding on the one sub-block of the current image block.

A video processing device comprising:

• a processor;
• and
• a memory storing instructions that, when executed by the processor, cause the processor to:
• obtain motion information of a left neighboring block of a current image block, the current image block being divided into one or more sub-blocks each having a size of 8×8 pixels;
• and
• in response to the left neighboring block satisfying a preset condition:
• determine, in a collocated frame of the current image block, a related block of one sub-block of the one or more sub-blocks according to a motion vector of the left neighboring block, the preset condition including that a reference image of the left neighboring block is same as the collocated frame of the current image block;
• and
• determine a motion vector of the one sub-block according to a motion vector of the related block of the one sub-block, to perform encoding/decoding on the one sub-block of the current image block.

A non-transitory computer-readable storage medium storing bit data obtained by an encoding method including:

• obtaining motion information of a left neighboring block of a current image block, the current image block being divided into one or more sub-blocks each having a size of 8×8 pixels;
• and
• in response to the left neighboring block satisfying a preset condition:
• determining, in a collocated frame of the current image block, a related block of one sub-block of the one or more sub-blocks according to a motion vector of the left neighboring block, the preset condition including that a reference image of the left neighboring block is same as the collocated frame of the current image block;
• and
• determining a motion vector of the one sub-block according to a motion vector of the related block of the one sub-block, to perform encoding on the one sub-block of the current image block.