CN107071452A

5G,4G,3G,2G

Title

Method for decoding video quantization parameter

Application Number:

CN201611108247

Publication Date:

18-08-2017

Current Assignee:

Family ID:

Application Date:

27-06-2012

Declaring Company:

Publication Country:

US

Priority Date:

28-06-2011

Title

Method for decoding video quantization parameter

Application Number:

CN201611108247

Family ID:

Publication Country:

US

Publication Date:

18-08-2017

Application Date:

27-06-2012

Priority Date:

28-06-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

A video quantization parameter encoder comprises: a prediction device for generating a predicted quantization parameter from a past reconstructed quantization parameter, a quantization parameter encoding device for binary arithmetic encoding a first binary bit indicating whether or not the difference quantization parameter is significant, a sign binary bit indicating whether the difference quantization parameter is positive or negative, and other binary bits indicating an absolute value of the difference quantization parameter, in the case where the difference quantization parameter is significant, and an adder for generating a reconstructed quantization parameter by adding a predicted quantization parameter to the difference quantization parameter, wherein the quantization parameter encoding device does not use the context for the sign binary bit, and uses the first context for the first binary bit and the second context for other binary bits to execute binary arithmetic encoding.

Note:

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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.