US9749634B2

5G,4G,3G,2G

Title

IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD

Application Number:

US201615238587

Publication Date:

29-08-2017

Current Assignee:

Family ID:

Application Date:

16-08-2016

Declaring Company:

Publication Country:

US

Priority Date:

12-07-2011

Title

IMAGE QUANTIZATION PARAMETER ENCODING METHOD AND IMAGE QUANTIZATION PARAMETER DECODING METHOD

Application Number:

US201615238587

Family ID:

Publication Country:

US

Publication Date:

29-08-2017

Application Date:

16-08-2016

Priority Date:

12-07-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

An image quantization parameter encoder includes: a prediction unit for generating a predicted quantization parameter from a past reconstructed quantization parameter; a computing unit for generating a delta quantization parameter from a quantization parameter and the predicted quantization parameter; and a quantization parameter encoding unit for binary-arithmetic-encoding a first bin indicating whether the delta quantization parameter is significant; and when the delta quantization parameter is determined to be significant other bins which are encoded subsequent to the first bin indicating an absolute value of the delta quantization parameter and a sign bin which is encoded subsequent to the other bins indicating whether the delta quantization parameter is positive or negative wherein the binary-arithmetic-encoding is performed using contexts for the first bin and the other bins and using no context for the sign bin and wherein the binary-arithmetic-encoding is performed using a first context for the first bin and using a second context for the other bins.

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.