CN106878713A

5G,4G,3G,2G

Title

IMAGE QUANTIZATION PARAMETER DECODING METHOD

Application Number:

CN201710123831

Publication Date:

20-06-2017

Current Assignee:

Family ID:

Application Date:

14-06-2012

Declaring Company:

Publication Country:

US

Priority Date:

12-07-2011

Title

IMAGE QUANTIZATION PARAMETER DECODING METHOD

Application Number:

CN201710123831

Family ID:

Publication Country:

US

Publication Date:

20-06-2017

Application Date:

14-06-2012

Priority Date:

12-07-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

A video quantization parameter decoder according to the present invention includes: a prediction unit for generating a predicted quantization parameter from a past reconstructed quantization parameter; and a quantization parameter decoding unit for binary arithmetic decoding a first bin indicating whether or not a delta quantization parameter is significant, a second bin indicating whether the delta quantization parameter is positive or negative, and other bins indicating an absolute value of the delta quantization parameter. The quantization parameter decoding unit does not use a context used for symbol bins and uses a first context used for the first bin and the context which is used for other bins and is different from the first context for performing binary arithmetic decoding. Furthermore on the condition that the value of the first bin is zero, the value of the delta quantization parameter is zero. Furthermore on the condition that the value of the first binary bin is one, the delta quantization parameter is significant.

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.