CN103597828B

5G,4G,3G,2G

Title

Image quantization parameter encoding method and image quantization parameter decoding method

Application Number:

CN20128025580

Publication Date:

22-03-2017

Current Assignee:

Family ID:

Application Date:

14-06-2012

Declaring Company:

Publication Country:

US

Priority Date:

12-07-2011

Title

Image quantization parameter encoding method and image quantization parameter decoding method

Application Number:

CN20128025580

Family ID:

Publication Country:

US

Publication Date:

22-03-2017

Application Date:

14-06-2012

Priority Date:

12-07-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention claims an image quantization parameter coder comprising: a predictor (11) for reconstructing the quantized parameter generates a prediction quantization parameter from previous calculator (12) for prediction quantization parameter from the quantization parameter and generating a differential quantization parameter and quantization parameter encoder (13); the absolute value of the differential quantization parameter is meaningful first binary bit parameter of indicating differential quantization is meaningful indicate a redundant differential quantization parameter of different binary bits and differential quantization parameters indicating a positive or negative bit of binary executable binary arithmetic coding.

An image quantization parameter encoder is provided with: a predictor (11) for generating a predicted quantization parameter from a past reconstructed quantization parameter; a calculator (12) for generating a differential quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoder (13) which when the differential quantization parameter is significant performs binary arithmetic encoding of a first bin indicative of whether the differential quantization parameter is significant a different bin indicative of the absolute value of a non-redundant differential quantization parameter and a bin indicative of the positivity/negativity of the differential quantization parameter.

An image quantization parameter encoder is provided with: a predictor (11) for generating a predicted quantization parameter from a past reconstructed quantization parameter; a calculator (12) for generating a differential quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoder (13) which when the differential quantization parameter is significant performs binary arithmetic encoding of a first bin indicative of whether the differential quantization parameter is significant a different bin indicative of the absolute value of a non-redundant differential quantization parameter and a bin indicative of the positivity/negativity of the differential quantization parameter.

Note:

The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)

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The information in purple was extracted from the FrandAvenue

Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.

Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.

Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.

Family member:related patents or applications that share a common priority or original filing.