Patent ID: 11889074
Assignee: SHARP KABUSHIKI KAISHA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A device comprising:
one or more processors; and
one or more non-transitory computer-readable media coupled to the one or more processors and storing one or more computer-executable instructions that, when executed by at least one of the one or more processors, cause the device to:
derive a predicted luma quantization parameter by using a tree type specifying whether a single tree or a dual tree is used to partition a coding tree; and
generate a luma quantization parameter by using the predicted luma quantization parameter, wherein:
the predicted luma quantization parameter is set equal to a luma quantization parameter of a coding unit containing a luma coding block covering a neighboring location when a first condition of a current quantization group is true and a second condition of a neighboring block availability is true, and
the neighboring location is located above the current quantization group.