公开(公告)号：US11683533B2

公开(公告)日：2023-06-20

申请号：US17228306

申请日：2021-04-12

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Jianle Chen ,  Anand Meher Kotra ,  Semih Esenlik ,  Biao Wang ,  Han Gao ,  Zhijie Zhao

IPC: H04N19/86 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/96

CPC classification number: H04N19/86 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/96

Abstract: A method and image processing device are provided, including a deblocking filter. The deblocking filter modifies values of at most MA samples of the first image block as first filter output values, the at most MA samples being obtained from a column of the first image block that is perpendicular to and adjacent to the horizontal block edge; and modifies values of at most MB samples of the second image block as second filter output values, the at most MB samples being obtained from a column of the second image block that is perpendicular to and adjacent to the horizontal block edge. At most a number MA of sample values of the first image block adjacent to the block edge are modified and at most a number MB of sample values of the second image block adjacent to the block edge are modified, wherein MA

公开(公告)号：US11671632B2

公开(公告)日：2023-06-06

申请号：US17171262

申请日：2021-02-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Kirill Aleksandrovich Malakhov ,  Hu Chen ,  Zhijie Zhao ,  Dmitry Vadimovich Novikov ,  Marat Ravilevich Gilmutdinov

IPC: H04N19/96 ,  H04N19/124 ,  H04N19/176 ,  H04N19/52 ,  G06N20/00

CPC classification number: H04N19/96 ,  G06N20/00 ,  H04N19/124 ,  H04N19/176 ,  H04N19/52

Abstract: A method for encoding a video image using coding parameters, adapted on the basis of motion of the video image and of an output of a machine-learning based model, wherein the machine-learning based model is input with samples of a block of the video image and motion information of the samples, and along with texture, wherein the machine-learning model segments the video image into regions based on strength of the motion determined from the motion information. An object is detected within the video based on the motion and the texture, and spatial-time coding parameters are determined based on the strength of the motion, and whether or not the detected objects moves.

公开(公告)号：US11490092B2

公开(公告)日：2022-11-01

申请号：US17170122

申请日：2021-02-08

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhijie Zhao ,  Yuntan Fang ,  Jun Zha ,  Hu Chen ,  Jiantong Zhou

IPC: H04N19/176 ,  H04N19/137 ,  H04N19/132 ,  H04N19/167 ,  H04N7/01 ,  H04N19/31 ,  H04N19/33 ,  H04N5/335

Abstract: The present disclosure relates to encoding of video image using coding parameters, which are adapted based on events related to motion within the video image. Image content is captured by a standard image sensor and an event-triggered sensor, providing an event-signal indicating changes (e.g. amount and time-spatial location) of image intensity. Objects are detected within the video image, based on the event signal assessing motion of the object, and their textures extracted. The spatial-time coding parameters of the video image are determined based on the location and strength of the event signal, and the extent to which the detected objects moves.

公开(公告)号：US11477494B2

公开(公告)日：2022-10-18

申请号：US17169175

申请日：2021-02-05

Applicant: Huawei Technologies Co., Ltd.

Inventor： Han Gao ,  Semih Esenlik ,  Jianle Chen ,  Anand Meher Kotra ,  Biao Wang ,  Zhijie Zhao

IPC: H04N19/96 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/70

Abstract: The present disclosure relates generally to video coding and picture partitioning methods. In particular, the disclosure is concerned with relations between partition constraint elements, by setting partitioning rules for different picture partitioning methods. The disclosure provides devices and corresponding methods for generating or processing a bitstream including encoded pictures, particularly for setting and including partition constraint element into the bitstream. One of the devices is configured to determine a minimum luma size of a leaf block resulting from quadtree splitting (MinQtSizeY), determine a maximum luma size of a coding block where partitioning using a binary tree splitting is allowed (MaxBtSizeY) based on the MinQtSizeY, and include information for the determined MinQtSizeY into the bitstream.

公开(公告)号：US11463726B2

公开(公告)日：2022-10-04

申请号：US16728747

申请日：2019-12-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Semih Esenlik ,  Anand Meher Kotra ,  Zhijie Zhao

IPC: H04N19/176 ,  H04N19/513 ,  H04N19/70 ,  H04N19/52 ,  H04N19/51 ,  H04N19/523 ,  H04N19/105 ,  H04N19/139 ,  H04N19/533 ,  H04N19/56 ,  H04N19/573 ,  H04N19/109 ,  H04N19/577

Abstract: The present invention relates to the performance of motion vector refinement in a search space for multi-reference inter-prediction. Two or more reference pictures are selected, one of those used for motion vector refinement. Based on an initial estimate of a motion vector to the reference picture for motion vector refinement, a search space in this reference image is constructed. Using template matching, the first motion vector is refined. The second motion vector to another reference picture is calculated using its initial estimate, the initial estimate of the first motion vector and the refined first motion vector.

公开(公告)号：US20220060698A1

公开(公告)日：2022-02-24

申请号：US17518254

申请日：2021-11-03

Applicant: Huawei Technologies Co., Ltd.

Inventor： Anand Meher Kotra ,  Jianle Chen ,  Semih Esenlik ,  Zhijie Zhao ,  Han Gao ,  Biao Wang ,  Ivan Krasnov

IPC: H04N19/11 ,  H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

Abstract: A coding apparatus configured to select an intra prediction mode for a current block, encode the selected intra prediction mode using truncated binary coding every time the selected intra prediction mode is a remaining mode, and encode the selected intra prediction mode using N bits when the selected intra prediction mode is included in a first portion from remaining modes and using N+1 bits when the selected intra prediction mode is included in a second portion of the remaining modes.

公开(公告)号：US11153595B2

公开(公告)日：2021-10-19

申请号：US16844901

申请日：2020-04-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Semih Esenlik ,  Zhijie Zhao ,  Han Gao ,  Anand Meher Kotra

IPC: H04N19/513 ,  H04N19/57 ,  H04N19/573

Abstract: The present disclosure relates to motion vector determination using template matching. In particular, an initial motion vector and a template are obtained for a prediction block. Then a refinement of the initial motion vector is determined by template matching with said template in a search space. The search space is located on a position given by the initial motion vector. The template matching accesses integer sample positions within a predetermined window, the predetermined window including said search space and further integer sample positions accessible for the template matching, replaces at least one integer sample position located out of the window by at least one replacement value, each replacement value is based on at least one sample within said window, and uses the accessed integer sample position values as well as the at least one replacement value to perform the template matching.

公开(公告)号：US11140389B2

公开(公告)日：2021-10-05

申请号：US16994266

申请日：2020-08-14

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Anand Meher Kotra ,  Jianle Chen ,  Semih Esenlik ,  Biao Wang ,  Han Gao ,  Zhijie Zhao

IPC: H04N19/117 ,  H04N19/176 ,  H04N19/105 ,  H04N19/132

Abstract: Embodiments of the present invention relate to the field of picture processing. Especially, the embodiments are directed to improving the deblocking filter of an image coding device. During the deblocking, at most a number MA of sample values of the first coding block adjacent to the block edge are modified and at most a number MB of sample values of the second coding block adjacent to the block edge are modified; or at most a number MA of sample values of the second coding block adjacent to the block edge are modified and at most a number MB of sample values of the first coding block adjacent to the block edge are modified, MA≠MB.

公开(公告)号：US20210281884A1

公开(公告)日：2021-09-09

申请号：US17211638

申请日：2021-03-24

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Anand Meher Kotra ,  Semih Esenlik ,  Biao Wang ,  Han Gao ,  Zhijie Zhao ,  Jianle Chen

IPC: H04N19/86 ,  H04N19/176 ,  H04N19/80 ,  H04N19/182 ,  H04N19/117 ,  H04N19/14

Abstract: An image processing device for use in an image encoder and/or an image decoder, for deblocking a block edge between a first block and a second block of an image encoded with a block code, is provided. The image processing device comprises a filter for filtering the block edge, configured to, for at least some of the pixels to be filtered, within a deblocking range from the block edge, the deblocking range being perpendicular to the block edge, determine a filtered pixel value from an original pixel value of the pixel and at least one further pixel value, determine a clipping value of the pixel, dependent upon a distance of the pixel from the block edge, and clip the filtered pixel value, using the clipping value resulting in a deblocked pixel value.

公开(公告)号：US20210227247A1

公开(公告)日：2021-07-22

申请号：US17225939

申请日：2021-04-08

Applicant: HUAWEI TECHNOLOGIES CO.,LTD.

Inventor： Max Blaeser ,  Zhijie Zhao

IPC: H04N19/52 ,  H04N19/96 ,  H04N19/176

Abstract: An apparatus and method are provided for inter prediction of a current geometric partition of a coding block. When the coding block is enabled for a geometric partition merge mode, a merge candidate list for the coding block partitioned into two geometric partitions including the current geometric partition is generated. The merge candidate list generation comprises deriving one or more spatial merge candidates from neighboring coding units, and directly or immediately deriving one or more temporal motion vector predictions (MVPs). An uni-prediction MV is derived as a motion vector of the current geometric partition based on the merge candidate list. The current geometric partition of the coding block is predicted based on the uni-prediction MV to obtain a predicted value of the current geometric partition.