JP6149971B2

5G,4G,3G,2G

Title

METHOD FOR ENCODING VIDEO QUANTIZATION PARAMETER, AND METHOD FOR DECODING VIDEO QUANTIZATION PARAMETER

Application Number:

JP20160081001

Publication Date:

21-06-2017

Current Assignee:

Family ID:

Application Date:

14-04-2016

Declaring Company:

Publication Country:

US

Priority Date:

12-07-2011

Title

METHOD FOR ENCODING VIDEO QUANTIZATION PARAMETER, AND METHOD FOR DECODING VIDEO QUANTIZATION PARAMETER

Application Number:

JP20160081001

Family ID:

Publication Country:

US

Publication Date:

21-06-2017

Application Date:

14-04-2016

Priority Date:

12-07-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

PROBLEM TO BE SOLVED: To suitably encode a video quantization parameter in video encoding that uses context base binary arithmetic encoding.

SOLUTION: A video quantization parameter encoder according to the present invention comprises: prediction means for generating a predictive quantization parameter from past reconstruction quantization parameters; arithmetic means for generating a differential quantization parameter from a quantization parameter and the predictive quantization parameter; and quantization parameter encoding means for binary-arithmetically encoding when the differential quantization parameter is significant a first bin indicating whether or not the differential quantization parameter is significant using a first context binary-arithmetically encoding other bins following the first bin and indicating the absolute value of the differential quantization parameter using a context differing from the first context and binary-arithmetically encoding a code bin following the other bins and indicating whether the differential quantization parameter is positive or negative without using any context.

SELECTED DRAWING: Figure 3

Note:

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

The information in grey was provided by the patent holder

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.