Granted Patent B2

US 12,513,341 · App. 18/428,741 · Granted Dec 30, 2025

Inventors: Tomohiro Ikai (Sakai, JP); Sachin G. Deshpande (Vancouver, WA); Tomoko Aono (Osaka, JP); Keiichiro Takada (Osaka, JP); Takeshi Chujoh (Osaka, JP)

Assignee: SHARP KABUSHIKI KAISHA

H04N19/80H04N19/132H04N19/136H04N19/172H04N19/174H04N19/42H04N19/70H04N19/85

Abstract

Claims (19)

1 . A device comprising one or more processors configured to:

derive variables BitDepthY and BitDepthC equal to BitDepthY and BitDepthC;

decode a slice QP SliceQPY and an offset QpBdOffsetY;

derive StrengthControlVal equal to a value of (SliceQpY+QpBdOffsetY)÷(51+QpBdOffsetY) of a first slice of current coded picture; and

set StrengthControlVal to an input tensor.

2 . The device of claim 1 , wherein the processors further configured to:

parse a first syntax element in a neural network post-filter characteristics (NNPFC) supplemental enhancement information (SEI) message, wherein the first syntax element indicates a purpose of a neural-network post-processing filter (NNPF);

if pictureRateUpsamplingFlag is equal to 1, there is a second NNPF that is defined by at least one NNPFC SEI message, and an nnpfc_purpose indicates that resolution resample flag is equal to 1,

set a variable CroppedWidth equal to nnpfcOutputPicWidth defined for the second NNPF, and

set a variable CroppedHeight equal to nnpfcOutputPicHeight defined for the second NNPF; and

otherwise,

set a variable CroppedWidth equal to a value of pic_width_in_luma_samples−SubWidthC*(conf_win_left_offset+conf_win_right_offset) for currPic, and

set a variable CroppedHeight equal to a value of pic_height_in_luma_samples−SubHeightC*(conf_win_top_offset+conf_win_bottom_offset) for currPic.

3 . A device comprising one or more processors configured to:

encode BitDepthY and BitDepthC;

derive variables BitDepthY and BitDepthC equal to the BitDepthY and the BitDepthC;

encode a slice QP SliceQPY and an offset QpBdOffsetY;

derive StrengthControlVal equal to a value of (SliceQpY+QpBdOffsetY)÷(51+QpBdOffsetY) of a first slice of current coded picture; and

set StrengthControlVal to an input tensor.

Assignments (1)

Continuity (2)

References Cited (12)