公开(公告)号：US20180098079A1

公开(公告)日：2018-04-05

申请号：US15713075

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Kai Zhang ,  Done Bugdayci Sansli ,  Marta Karczewicz ,  Wei-Jung Chien ,  Yu-Chen Sun

IPC: H04N19/43 ,  H04N19/176 ,  H04N19/553 ,  H04N19/186 ,  H04N19/577

CPC classification number: H04N19/52 ,  H04N19/105 ,  H04N19/11 ,  H04N19/119 ,  H04N19/126 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/198 ,  H04N19/43 ,  H04N19/44 ,  H04N19/51 ,  H04N19/553 ,  H04N19/577 ,  H04N19/61 ,  H04N19/625

Abstract: Techniques and systems are provided for processing video data. For example, a current block of a picture of the video data can be obtained for processing by an encoding device or a decoding device. A parameter of the current block can be determined. Based on the determined parameter of the current block, at least one or more of a number of rows of samples or a number columns of samples in a template of the current block and at least one or more of a number of rows of samples or a number columns of samples in a template of a reference picture can be determined. Motion compensation for the current block can be performed. For example, one or more local illumination compensation parameters can be derived for the current block using the template of the current block and the template of the reference picture.

公开(公告)号：US12096023B2

公开(公告)日：2024-09-17

申请号：US18312904

申请日：2023-05-05

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Yu-Chen Sun ,  Li Zhang ,  Sungwon Lee ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/44 ,  H04N19/54 ,  H04N19/70 ,  H04N19/593

CPC classification number: H04N19/52 ,  H04N19/176 ,  H04N19/44 ,  H04N19/54 ,  H04N19/70 ,  H04N19/593

Abstract: A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

公开(公告)号：US11218723B2

公开(公告)日：2022-01-04

申请号：US16819955

申请日：2020-03-16

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Yu-Chen Sun ,  Li Zhang ,  Sungwon Lee ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/70 ,  H04N19/44 ,  H04N19/176 ,  H04N19/54 ,  H04N19/593

Abstract: A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

公开(公告)号：US10951912B2

公开(公告)日：2021-03-16

申请号：US15713112

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Kai Zhang ,  Done Bugdayci Sansli ,  Marta Karczewicz ,  Wei-Jung Chien ,  Yu-Chen Sun

IPC: H04N19/52 ,  H04N19/44 ,  H04N19/61 ,  H04N19/51 ,  H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/625 ,  H04N19/186 ,  H04N19/43 ,  H04N19/553 ,  H04N19/577 ,  H04N19/11 ,  H04N19/126 ,  H04N19/139 ,  H04N19/119

Abstract: Techniques and systems are provided for processing video data. For example, a current block of a picture of the video data can be obtained for processing by an encoding device or a decoding device. A pre-defined set of weights for template matching based motion compensation are also obtained. A plurality of metrics associated with one or more spatially neighboring samples of the current block and one or more spatially neighboring samples of at least one reference frame are determined. A set of weights are selected from the pre-defined set of weights to use for the template matching based motion compensation. The set of weights is determined based on the plurality of metrics. The template matching based motion compensation is performed for the current block using the selected set of weights.

公开(公告)号：US10798404B2

公开(公告)日：2020-10-06

申请号：US15713038

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Kai Zhang ,  Done Bugdayci Sansli ,  Marta Karczewicz ,  Wei-Jung Chien ,  Yu-Chen Sun

IPC: H04N19/52 ,  H04N19/44 ,  H04N19/61 ,  H04N19/51 ,  H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176 ,  H04N19/196 ,  H04N19/625 ,  H04N19/186 ,  H04N19/43 ,  H04N19/553 ,  H04N19/577 ,  H04N19/11 ,  H04N19/126 ,  H04N19/139 ,  H04N19/119

Abstract: Techniques and systems are provided for processing video data. For example, video data can be obtained for processing by an encoding device or a decoding device. Bi-predictive motion compensation can then be performed for a current block of a picture of the video data. Performing the bi-predictive motion compensation includes deriving one or more local illumination compensation parameters for the current block using a template of the current block, a first template of a first reference picture, and a second template of a second reference picture. The templates can include neighboring samples of the current block, the first reference picture, and the second reference picture. The first template of the first reference picture and the second template of the second reference picture can be used simultaneously to derive the one or more local illumination compensation parameters.

公开(公告)号：US20200221116A1

公开(公告)日：2020-07-09

申请号：US16819955

申请日：2020-03-16

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Yu-Chen Sun ,  Li Zhang ,  Sungwon Lee ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Vadim Seregin ,  Marta Karczewicz

IPC: H04N19/52 ,  H04N19/70 ,  H04N19/44 ,  H04N19/176 ,  H04N19/54

Abstract: A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

公开(公告)号：US10602180B2

公开(公告)日：2020-03-24

申请号：US16003269

申请日：2018-06-08

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Marta Karczewicz ,  Wei-Jung Chien ,  Yu-Chen Sun ,  Li Zhang ,  Sungwon Lee ,  Xiang Li ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Vadim Seregin

IPC: H04N19/52 ,  H04N19/70 ,  H04N19/44 ,  H04N19/176

Abstract: A video coder may determine a motion vector of a non-adjacent block of a current picture of the video data. The non-adjacent block is non-adjacent to a current block of the current picture. Furthermore, the video coder determines, based on the motion vector of the non-adjacent block, a motion vector predictor (MVP) for the current block. The video coder may determine a motion vector of the current block. The video coder may also determine a predictive block based on the motion vector of the current block.

公开(公告)号：US20180241998A1

公开(公告)日：2018-08-23

申请号：US15900649

申请日：2018-02-20

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Marta Karczewicz ,  Yu-Chen Sun

IPC: H04N19/139 ,  H04N19/182 ,  H04N19/176 ,  H04N19/105 ,  H04N19/513 ,  H04N19/577 ,  H04N19/117 ,  H04N19/124

Abstract: An example device for decoding video data includes a memory configured to store video data, and a video decoder implemented in circuitry and configured to determine that motion information of a current block of the video data is to be derived using decoder-side motion vector derivation (DMVD), determine a pixels clue for the current block, the pixels clue comprising pixel data obtained from one or more groups of previously decoded pixels, derive the motion information for the current block according to DMVD from the pixels clue, and decode the current block using the motion information. The video decoder may generate the pixels clue using multiple hypothesis predictions from multiple motion compensated blocks. The video decoder may determine an inter-prediction direction for the motion information according to matching costs between different prediction directions. The video decoder may refine the motion information using a calculated matching cost for the pixels clue.

公开(公告)号：US20180098086A1

公开(公告)日：2018-04-05

申请号：US15713038

申请日：2017-09-22

Applicant: QUALCOMM Incorporated

Inventor： Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Kai Zhang ,  Done Bugdayci Sansli ,  Marta Karczewicz ,  Wei-Jung Chien ,  Yu-Chen Sun

IPC: H04N19/52 ,  H04N19/176 ,  H04N19/159 ,  H04N19/196 ,  H04N19/625

Abstract: Techniques and systems are provided for processing video data. For example, video data can be obtained for processing by an encoding device or a decoding device. Bi-predictive motion compensation can then be performed for a current block of a picture of the video data. Performing the bi-predictive motion compensation includes deriving one or more local illumination compensation parameters for the current block using a template of the current block, a first template of a first reference picture, and a second template of a second reference picture. The templates can include neighboring samples of the current block, the first reference picture, and the second reference picture. The first template of the first reference picture and the second template of the second reference picture can be used simultaneously to derive the one or more local illumination compensation parameters.

公开(公告)号：US10701366B2

公开(公告)日：2020-06-30

申请号：US15900649

申请日：2018-02-20

Applicant: QUALCOMM Incorporated

Inventor： Yi-Wen Chen ,  Wei-Jung Chien ,  Hsiao-Chiang Chuang ,  Jianle Chen ,  Xiang Li ,  Marta Karczewicz ,  Yu-Chen Sun

IPC: H04N7/12 ,  H04N19/139 ,  H04N19/182 ,  H04N19/176 ,  H04N19/124 ,  H04N19/513 ,  H04N19/577 ,  H04N19/117 ,  H04N19/105 ,  H04N19/573 ,  H04N19/44 ,  H04N19/109 ,  H04N19/51 ,  H04N19/583

Abstract: An example device for decoding video data includes a memory configured to store video data, and a video decoder implemented in circuitry and configured to determine that motion information of a current block of the video data is to be derived using decoder-side motion vector derivation (DMVD), determine a pixels clue for the current block, the pixels clue comprising pixel data obtained from one or more groups of previously decoded pixels, derive the motion information for the current block according to DMVD from the pixels clue, and decode the current block using the motion information. The video decoder may generate the pixels clue using multiple hypothesis predictions from multiple motion compensated blocks. The video decoder may determine an inter-prediction direction for the motion information according to matching costs between different prediction directions. The video decoder may refine the motion information using a calculated matching cost for the pixels clue.