Image processing device and image processing method
AssigneeSony Corporation
InventorKazushi SATO
Life of this patent
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Abstract
Provided is an image processing device including a selection section configured to select, from a plurality of transform units with different sizes, a transform unit used for inverse orthogonal transformation of image data to be decoded, a generation section configured to generate, from a first quantization matrix corresponding to a transform unit for a first size, a second quantization matrix corresponding to a transform unit for a second size from a first quantization matrix corresponding to a transform unit for a first size, and an inverse quantization section configured to inversely quantize transform coefficient data for the image data using the second quantization matrix generated by the generation section when the selection section selects the transform unit for the second size.
Claims15
(canceled)
An image processing device comprising:
- circuitry configured to:
- decode encoded data of image data to generate quantized transform coefficient data;
- and
- inversely quantize quantized transform coefficient data for image data using a first quantization matrix set by duplicating one of a first element and a second element adjacent to each other in a second quantization matrix as an element between the first element and the second element in the first quantization matrix.
An image processing method comprising:
- decoding encoded data of image data to generate quantized transform coefficient data;
- and
- inversely quantizing, via circuitry of an image processing device, quantized transform coefficient data for image data using a first quantization matrix set by duplicating one of a first element and a second element adjacent to each other in a second quantization matrix as an element between the first element and the second element in the first quantization matrix.
Dependencies are inferred from the claim text.