CN107105274A

5G,4G,3G,2G

Title

Method for decoding video quantization parameter

Application Number:

CN201710128396

Publication Date:

29-08-2017

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:

CN201710128396

Family ID:

Publication Country:

US

Publication Date:

29-08-2017

Application Date:

27-06-2012

Priority Date:

28-06-2011

Current Assignee:

Declaring Company:

Abstract  Abstract

A video quantization parameter decoder includes: a prediction unit 11 for generating a predicted quantization parameter from a past reconstructed quantization parameter; and a quantization parameter decoding unit configured to subject a first binary bit indicating whether or not a difference quantization parameter is significant, a symbol binary bit indicating whether the difference quantization parameter is positive or negative, and other binary bits indicating the absolute value of the difference quantization parameter to binary arithmetic decoding, wherein the quantization parameter decoding unit does not use a context for symbol binary bits, uses a first context for a first binary bit, and uses a context different from the first context and for the other binary bits to perform the binary arithmetic decoding, and wherein when the binary arithmetic decoding is performed, a context variable is updated according to the corresponding binary bit, and the context variable includes the most likely symbol and a probability of the most likely symbol.

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.