JP2016116238A

5G,4G,3G,2G

Title

VIDEO QUANTIZATION PARAMETER CODING METHOD AND VIDEO QUANTIZATION PARAMETER DECODING METHOD

Application Number:

JP20160021607

Publication Date:

23-06-2016

Current Assignee:

Family ID:

Application Date:

08-02-2016

Declaring Company:

Publication Country:

US

Priority Date:

28-06-2011

Title

VIDEO QUANTIZATION PARAMETER CODING METHOD AND VIDEO QUANTIZATION PARAMETER DECODING METHOD

Application Number:

JP20160021607

Family ID:

Publication Country:

US

Publication Date:

23-06-2016

Application Date:

08-02-2016

Priority Date:

28-06-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To allow for proper coding of video quantization parameters of video coding using context base adaptive binary arithmetic coding.SOLUTION: A video quantization parameter decoder includes prediction means for generating prediction quantization parameters from reconstruction quantization parameters in the past, and quantization parameter decoding means performing binary arithmetic decoding of first bin indicating whether or not the differential quantization parameters are significant by using a first context, of a code bin indication positive or negative of the differential quantization parameters without using a context, and of other bin indicating the absolute values of the differential quantization parameters by using a context different from the first context. The quantization parameter decoding means generates the reconstruction quantization parameters by adding the prediction quantization parameters to the differential quantization parameters thus generated.SELECTED DRAWING: Figure 1

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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.