IMAGE ENCODING DEVICE, IMAGE ENCODING METHOD, IMAGE DECODING DEVICE AND IMAGE DECODING METHOD Russian patent published in 2022 - IPC H04N19/119 H04N19/96 H04N19/176 

FIELD: imaging technology.

SUBSTANCE: invention relates to means for encoding and decoding images. An image encoding device designed to divide an image into blocks and encode an image in units of blocks obtained as a result of image separation contains: a block division unit that performs recursive image division into rectangles of a given size and generates a target encoding block; an inter-frame prediction block that generates a predicted image signal using the encoded frame image signal; and an encoding block that encodes information about the division into blocks of the target encoding block. The block division unit includes: a unit for division into four blocks, performing the division of the target block when recursively divided into four blocks in the horizontal direction and vertical direction and generating four blocks, and a unit for division into two blocks, performing the division of the target block when recursively divided into two blocks in the horizontal direction or vertical direction and generating two blocks.

EFFECT: increasing the efficiency of encoding and decoding.

4 cl, 22 dwg