公开(公告)号：US20250024061A1

公开(公告)日：2025-01-16

申请号：US18902925

申请日：2024-10-01

Applicant: SHARP KABUSHIKI KAISHA

Inventor： SACHIN G. DESHPANDE

IPC: H04N19/44 ,  H04N19/70

Abstract: This disclosure relates to video coding and more particular to techniques for signaling decoded picture buffer information for coded video data. The method of decoding video data comprises, determining a number of output layer sets with more than one layer; determining a number of decoded picture buffer parameters syntax structures in a video parameter set; in a case that the number of the decoded picture buffer parameters syntax structures is not equal to the number of the output layer sets with more than one layer, decoding a syntax element specifying an index of the decoded picture buffer parameters syntax structures; and in a case that the syntax element is not present, inferring a value of the syntax element.

公开(公告)号：US20240397108A1

公开(公告)日：2024-11-28

申请号：US18774023

申请日：2024-07-16

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Jonatan SAMUELSSON ,  SACHIN G. DESHPANDE ,  Christopher Andrew Segall

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/124 ,  H04N19/172 ,  H04N19/174 ,  H04N19/82 ,  H04N19/86

Abstract: A device may be configured to signal scaling window information according to one or more of the techniques described herein.

公开(公告)号：US20240298021A1

公开(公告)日：2024-09-05

申请号：US18663498

申请日：2024-05-14

Applicant: SHARP KABUSHIKI KAISHA ,  FG Innovation Company Limited

Inventor： SACHIN G. DESHPANDE ,  Eiichi Sasaki ,  Takeshi Chujoh ,  Yukinobu Yasugi ,  Tomohiro Ikai ,  Tomoko Aono

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/167 ,  H04N19/174 ,  H04N19/96

CPC classification number: H04N19/436 ,  H04N19/119 ,  H04N19/167 ,  H04N19/174 ,  H04N19/96

Abstract: A non-transitory machine-readable medium of an electronic device that stores one or more computer-executable instructions is provided. The one or more computer-executable instructions, when executed by at least one processing unit of the electronic device, cause the electronic device to: decode a wavefront parallel processing (WPP) enabled flag that indicates whether a rectangular tile or a coding tree unit (CTU) row having a height of one CTU exists in a segment in an object tile group; and decode an end bit of the segment. When the WPP enabled flag is 1, after decoding a CTU at a right end of the CTU row, an end bit of a first segment having a first fixed value is decoded. When the WPP enabled flag is 0, after decoding a CTU at a bottom right of a tile, an end bit of a second segment having a second fixed value is decoded.

公开(公告)号：US20240146944A1

公开(公告)日：2024-05-02

申请号：US18526673

申请日：2023-12-01

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TOMOHIRO IKAI ,  SACHIN G. DESHPANDE ,  CHRISTOPHER ANDREW SEGALL

IPC: H04N19/44 ,  H04N19/174 ,  H04N19/184 ,  H04N19/70

CPC classification number: H04N19/44 ,  H04N19/174 ,  H04N19/184 ,  H04N19/70

Abstract: A device may be configured to signal range extension profile information for coded video according to one or more of the techniques described herein.

公开(公告)号：US20240031579A1

公开(公告)日：2024-01-25

申请号：US18373534

申请日：2023-09-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： SACHIN G. DESHPANDE

IPC: H04N19/146 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/146 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

Abstract: A method of decoding video data includes: receiving a buffering period message; parsing a first syntax element in the buffering period message, wherein the first syntax element plus one specifies a maximum number (M) of temporal sublayers for which coded picture buffer removal delay and coded picture buffer removal offset are indicated in the buffering period message; and parsing a second syntax element in the buffering period message, in a case that a value of the first syntax element is greater than a threshold value, wherein the second syntax element specifies whether decoded picture buffer output time offsets are present for temporal sublayer representations.

公开(公告)号：US20230179771A1

公开(公告)日：2023-06-08

申请号：US17991037

申请日：2022-11-21

Applicant: SHARP KABUSHIKI KAISHA ,  FG Innovation Company Limited

Inventor： SACHIN G. DESHPANDE

IPC: H04N19/132 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

CPC classification number: H04N19/132 ,  H04N19/105 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

Abstract: A method of deriving prediction sample values for decoding video data by a device is provided. A reference wraparound offset syntax specifying an offset used for computing a horizontal wrap-around position is decoded. A luma location is derived based on a product of a value of the reference wraparound offset syntax and a minimum coding block size. An offset variable is set equal to a value obtained by dividing the product of the value of the reference wraparound offset syntax and the minimum coding block size by a width value, and the width value is specified based on a chroma format. A chroma location is derived by using the offset variable. A predicted luma sample value is derived by using the luma location.

公开(公告)号：US20230142799A1

公开(公告)日：2023-05-11

申请号：US18095804

申请日：2023-01-11

Applicant: SHARP KABUSHIKI KAISHA

Inventor： KIRAN MUKESH MISRA ,  SACHIN G. DESHPANDE ,  SHEAU NG ,  CHRISTOPHER ANDREW SEGALL

IPC: G10L15/00 ,  H04H60/58 ,  H04N21/233 ,  H04N21/2362 ,  H04H20/86 ,  H04H20/59 ,  G06F40/263

CPC classification number: G10L15/005 ,  H04H60/58 ,  H04N21/233 ,  H04N21/2362 ,  H04H20/86 ,  H04H20/59 ,  G06F40/263

Abstract: A device may be configured to parse a syntax element specifying the number of available languages within a presentation associated with an audio stream. A device may be configured to parse one or more syntax elements identifying each of the available languages and parse an accessibility syntax element for each language within the presentation.

公开(公告)号：US20230134652A1

公开(公告)日：2023-05-04

申请号：US17910732

申请日：2021-03-12

Applicant: SHARP KABUSHIKI KAISHA

Inventor： SACHIN G. DESHPANDE

IPC: H04N19/86 ,  H04N19/186 ,  H04N19/70 ,  H04N19/124 ,  H04N19/172

Abstract: This disclosure relates to video coding and more particularly to techniques for applying deblocking filters for coded video. In one example, a method of decoding chroma component parameter information for decoding video data comprises: receiving a picture parameter set (PPS) including syntax elements corresponding to a picture; parsing a flag in the PPS indicating whether chroma quantization parameter syntax elements are included in the PPS and whether chroma deblocking parameter syntax elements are included in the PPS; conditionally parsing the chroma quantization parameter syntax elements in the PPS based on the value of the flag; conditionally parsing the chroma deblocking parameter syntax elements in the PPS based on the value of the flag; deriving a quantization parameter based on the chroma quantization parameter syntax elements; and performing a deblocking filter based on the chroma deblocking parameter syntax elements.

公开(公告)号：US20230085937A1

公开(公告)日：2023-03-23

申请号：US17795823

申请日：2021-01-25

Applicant: SHARP KABUSHIKI KAISHA

Inventor： SACHIN G. DESHPANDE ,  Jonatan SAMUELSSON ,  FRANK BOSSEN

IPC: H04N19/463 ,  H04N19/70 ,  H04N19/174 ,  H04N19/157 ,  H04N19/186 ,  H04N19/169

Abstract: This disclosure relates to video coding and more particularly to techniques for signaling picture information in a slice header for coded video. According to an aspect of an invention, a first flag syntax element specifying whether a picture header is present in a slice header is parsed; a second flag syntax element, specifying a luma mapping is used for a current slice or a luma mapping with a chroma scalling is not used for a current slice, and a third flag syntax element, specifying whether a scaling information for the current slice is derived, are parsed based on the first flag syntax element.

公开(公告)号：US20230068404A1

公开(公告)日：2023-03-02

申请号：US17788188

申请日：2020-12-23

Applicant: SHARP KABUSHIKI KAISHA

Inventor： SACHIN G. DESHPANDE

IPC: H04N19/44 ,  H04N19/176 ,  H04N19/70

Abstract: A method of decoding video data is disclosed. The method comprising: parsing a first syntax element indicating a number of subpictures in a picture; for each of subpictures which are other than a first subpicture, parsing second syntax elements indicating a position of the each of subpictures; inferring a top-left position of the first subpicture equal to a top-left position of the picture.