Image coding device, image decoding device, methods thereof, and programs
AssigneeSony Corporation
InventorsKazuhiro Shimauchi, Yuji Wada, Hiroshi Ikeda, Daisuke Tahara
Life of this patent
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Abstract
An image coding device including: an edge detecting section configured to perform edge detection using an image signal of a reference image for a coding object block; a transform block setting section configured to set transform blocks by dividing the coding object block such that a boundary between the blocks after division does not include an edge on a basis of a result of the edge detection; and a coding processing section configured to generate coded data by performing processing including an orthogonal transform of each of the transform blocks.
Claims17
An image processing device comprising:
- circuitry configured to
- set (i) a size of each of a plurality of transform blocks within a block according to an edge in an image such that the size of one of the transform blocks within the block is different from the size of another transform block within the block divided from a block of the image and
- (ii) boundaries of the transform blocks such that the edge does not fall on the boundaries between the transform blocks;
- and
- transform the image according to the transform blocks.
An image processing method comprising:
- setting, by circuitry of an image processing device, (i) a size of each of a plurality of transform blocks within a block according to in an image such that the size of one of the transform blocks within the block is different from the size of another transform block within the block divided from a block of the image and
- (ii) boundaries of the transform blocks such that the edge does not fall on the boundaries between the transform blocks;
- and
- transforming, by the circuitry, the image according to the transform blocks.
A non-transitory computer-readable medium storing computer-readable instructions thereon which when executed by a computer cause the computer to perform a method, the method comprising:
- setting (i) a size of each of a plurality of transform blocks within a block according to in an image such that the size of one of the transform blocks within the block is different from the size of another transform block within the block divided from a block of the image and
- (ii) boundaries of the transform blocks such that the edge does not fall on the boundaries between the transform blocks;
- and
- transforming the image according to the transform blocks.
Dependencies are inferred from the claim text.