CN106488230A

5G,4G,3G,2G

Title

IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD

Application Number:

CN20161183060

Publication Date:

08-03-2017

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:

CN20161183060

Family ID:

Publication Country:

US

Publication Date:

08-03-2017

Application Date:

14-06-2012

Priority Date:

12-07-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

The invention provides an image quantization parameter coder which includes: a prediction means for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing means for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoding means for binary arithmetic encoding a first bin indicating whether or not the delta quantization parameter is significant, other binary byte indicating an absolute value of the delta quantization parameter, and a binary byte indicating whether the delta quantization parameter is positive or negative, in the case where the delta quantization parameter is significant, wherein the other binary bytes are behind the first binary byte, and the sign binary byte is after the other binary byte, the binary-arithmetic-decoding is performed using contexts for the first binary byte and the other binary bytes, and using no context for the sign binary byte, and the binary-arithmetic-decoding is performed using a first context for the first binary byte and using a context for the other bytes and using no contact for the sign binary byte.

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.