US 2014/0193089 A1 · IMAGE PROCESSING DEVICE AND METHOD

Abstract

The present disclosure relates to an image processing device and a method that can suppress decreases in encoding efficiency. An image processing device of the present disclosure includes: a transform unit that transforms the quantization parameter used in quantization of image data into parameters; and a transmission unit that transmits the parameters generated from the quantization parameter transformed by the transform unit. For example, at the time of encoding of image data, the quantization parameter of the image data is divided by 2 and is transformed into a parameter indicating the quotient and a parameter indicating the remainder, and the parameters are transmitted. The present disclosure can be applied to image processing devices.

Claims20

Dependent claims

An image processing device comprising:

a transform unit configured to transform a quantization parameter used in quantization of image data into a plurality of parameters;
and
a transmission unit configured to transmit the parameters generated from the quantization parameter transformed by the transform unit.

An image processing device comprising:

an acquisition unit configured to acquire a plurality of parameters generated by transforming a quantization parameter used in quantization of image data;
and
a reconstruction unit configured to reconstruct the quantization parameter by using the parameters acquired by the acquisition unit.

Dependencies are inferred from the claim text.

Facts

Application

14/344,166Filed 25 Oct 2012

Priority

JP 2011-2416922 Nov 2011

Published

10 Jul 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04N 19/176
The unit being an image region, e.g. an object: the region being a block, e.g. a macroblock
H04N 19/126
Quantisation: details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
H04N 19/463
Embedding additional information in the video signal during the compression process: by compressing encoding parameters before transmission
H04N 19/593
Using predictive coding: involving spatial prediction techniques

Image processing device and method

Life of this patent

Image processing device and method

Life of this patent

Abstract

Claims20