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US 2014/0369406 A1Published application
Image compression circuit, image compression method, and transmission system
AssigneeSony Corporation
InventorsHiroshi Iizuka, Hidekazu Kikuchi
Life of this patent
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Abstract
An image compression circuit includes: a transform section configured to transform a plurality of pieces of pixel data into a plurality of pieces of coefficient data; and a quantization section configured to obtain a quantization parameter based on a predetermined number of pieces of the coefficient data, and to quantize the predetermined number of pieces of the coefficient data with use of the quantization parameter.
Claims18
An image compression circuit comprising:
- a transform section configured to transform a plurality of pieces of pixel data into a plurality of pieces of coefficient data;
- and
- a quantization section configured to obtain a quantization parameter based on a predetermined number of pieces of the coefficient data, and to quantize the predetermined number of pieces of the coefficient data with use of the quantization parameter.
An image compression method comprising:
- transforming a plurality of pieces of pixel data into a plurality of pieces of coefficient data;
- and
- obtaining a quantization parameter based on a predetermined number of pieces of the coefficient data, and quantizing the predetermined number of pieces of the coefficient data with use of the quantization parameter.
A transmission system provided with a transmitter and a receiver, the transmitter comprising:
- a transform section configured to transform a plurality of pieces of pixel data into a plurality of pieces of coefficient data;
- and
- a quantization section configured to obtain a quantization parameter based on a predetermined number of pieces of the coefficient data, and to quantize the predetermined number of pieces of the coefficient data with use of the quantization parameter.
Dependencies are inferred from the claim text.