公开(公告)号：US11483561B2

公开(公告)日：2022-10-25

申请号：US17037192

申请日：2020-09-29

Applicant: Huawei Technologies Co., Ltd. ,  TSINGHUA UNIVERSITY

Inventor： Liqiang Wang ,  Jianhua Zheng ,  Quanhe Yu ,  Yongbing Lin ,  Yun He

IPC: H04N19/12 ,  H04N19/119 ,  H04N19/167 ,  H04N19/176 ,  H04N19/70

Abstract: The present disclosure provide a transform method in picture block encoding, an inverse transform method in picture block decoding, and an apparatus. The inverse transform method includes: determining, in a target transform set, a corresponding transform pair of each region of at least two regions that constitute a to-be-decoded current block; inverse transforming each region based on the corresponding transform pair of each region to obtain an inverse transform result of each region; and obtaining an inverse transform result of the current block based on the inverse transform result of each region and a position of each region in the current block, where the at least two regions do not overlap each other, the target transform set includes a correspondence between a transform pair and a position of a region in the current block, and the transform pair includes a horizontal transform core and a vertical transform core.

公开(公告)号：US11586544B2

公开(公告)日：2023-02-21

申请号：US17263197

申请日：2019-07-23

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Gongzheng Shi ,  Jianliang Ma ,  Liqiang Wang

IPC: G06F12/08 ,  G06F12/0862 ,  G06F12/0811

Abstract: A data prefetching method and a terminal device are provided. The CPU core cluster is configured to deliver a data access request to a first cache of the at least one level of cache, where the data access request carries a first address, and the first address is an address of data that the CPU core cluster currently needs to access in the memory. The prefetcher in the terminal device provided in embodiments of this application may generate a prefetch-from address, and load data corresponding to the generated prefetch-from address to the first cache. When needing to access the data, the CPU core cluster can read from the first cache, without a need to read from the memory. This helps increase an operating rate of the CPU core cluster.

公开(公告)号：US12175681B2

公开(公告)日：2024-12-24

申请号：US17636542

申请日：2020-07-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liqiang Wang ,  Henghui Lu

IPC: G06T7/194 ,  G06T3/4038 ,  G06T5/50

Abstract: An image processing method includes displaying a first key frame image obtained from a sequence frame video stream; obtaining a first foreground image and a first background image obtained after foreground and background separation processing is performed on the first key frame image; obtaining a second foreground image obtained after foreground image processing is performed on a first target object in the first foreground image; obtaining a third background image obtained after background repair processing is performed on the first background image using a second background image, where the second background image is a background image included in a second key frame image obtained by photographing a target scene before the first key frame image is obtained; and obtaining a first key frame image obtained after foreground and background compositing processing is performed on the second foreground image and the third background image.

公开(公告)号：US11936861B2

公开(公告)日：2024-03-19

申请号：US17099470

申请日：2020-11-16

Applicant: Huawei Technologies Co., Ltd. ,  Tsinghua University

Inventor： Quanhe Yu ,  Jicheng An ,  Jianhua Zheng ,  Yongbing Lin ,  Liqiang Wang ,  Benben Niu ,  Ziwei Wei ,  Yun He

IPC: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/119 ,  H04N19/105 ,  H04N19/176 ,  H04N19/46

Abstract: Embodiments of this application relate to the video coding and compression field, and disclose an encoding method and apparatus, and a decoding method and apparatus, to resolve a problem that an existing split mode cannot satisfy a relatively complex texture requirement. The decoding method specifically includes: parsing a bitstream to determine a basic split mode for a current to-be-decoded picture block and a target derivation mode for a subpicture block of the current to-be-decoded picture block; splitting the current to-be-decoded picture block into N subpicture blocks in the basic split mode, where N is an integer greater than or equal to 2; deriving one derived picture block from at least two adjacent subpicture blocks in the N subpicture blocks in the target derivation mode; and decoding the derived picture block.