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公开(公告)号：US11875538B2
公开(公告)日：2024-01-16
申请号：US17205100
申请日：2021-03-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dejun Zhang , Tian Wang , Vladyslav Zakharchenko
IPC: G06T9/00 , H04N19/172
CPC classification number: G06T9/00 , H04N19/172
Abstract: A point cloud encoding method is provided to improve coding efficiency. The method includes: obtaining global matched patches in N frames of point clouds in a point cloud group; determining M union patch occupancy maps corresponding to M sets, where a union patch occupancy map corresponding to an mth set is a union set of occupancy maps of all global matched patches in the mth set; packing the M union patch occupancy maps to obtain a global occupancy map; packing each of the N frames of point clouds to obtain occupancy maps of the N frames of point clouds; and encoding the N frames of point clouds based on the occupancy maps of the N frames of point clouds.
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公开(公告)号：US20210183110A1
公开(公告)日：2021-06-17
申请号：US17145998
申请日：2021-01-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejun Zhang , Bo Liu , Wei Hu , Wenhai Wu , Tian Wang
Abstract: A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches, wherein the one or more patches comprise a current patch, wherein the reconstructing process includes transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, wherein the coordinates (x1, y1) of the first point of the current patch in the first coordinate system are obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.
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3.发明申请公开(公告)号：US20250069271A1
公开(公告)日：2025-02-27
申请号：US18945110
申请日：2024-11-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejun Zhang , Bo Liu , Wei Hu , Wenhai Wu , Tian Wang
Abstract: A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.
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公开(公告)号：US11388442B2
公开(公告)日：2022-07-12
申请号：US17217404
申请日：2021-03-30
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dejun Zhang , Tian Wang , Vladyslav Zakharchenko
IPC: H04B1/66 , H04N7/12 , H04N11/02 , H04N11/04 , H04N19/70 , H04N19/172 , H04N19/177 , H04N19/184
Abstract: Example point cloud encoding apparatus and point cloud decoding apparatus are provided for effectively encoding and decoding point cloud data. The point cloud encoding apparatus is configured for obtaining auxiliary information of a union occupancy map corresponding to a point cloud group, where the point cloud group includes N frames of point clouds, N≥2, and N is an integer. The union occupancy map is a union set of occupancy maps of N patches having a matching relationship in the N frames of point clouds, and the auxiliary information of the union occupancy map is used to determine auxiliary information of the N patches. A syntax element is encoded into a bitstream, where the syntax element includes the auxiliary information of the union occupancy map.
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Patent Agency Ranking
5.发明申请公开(公告)号：US20160381322A1
公开(公告)日：2016-12-29
申请号：US15262596
申请日：2016-09-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tian Wang , Yanling Guo , Bo Liu
Abstract: A method, device, and system for implementing a video conference includes obtaining in real time an image of a first scene from a main camera located in a first conference site, obtaining in real time an image of a second scene from an auxiliary camera located in the first conference site, the second scene is a part of the first scene, and the second scene includes a target object, generating a target image in real time according to the image of the first scene and the image of the second scene and based on a location of the target object in the first conference site, a location of the image of the second scene in the target image is corresponding to the location of the target object in the first conference site, and sending the target image in real time to a display device located in a second conference site.
Abstract translation: 用于实现视频会议的方法，设备和系统包括从位于第一会场的主摄像机实时获取第一场景的图像，实时地从位于第一会场的辅助摄像机获得第二场景的图像 所述第一会场，所述第二场景是所述第一场景的一部分，所述第二场景包括目标对象，根据所述第一场景的图像和所述第二场景的图像实时生成目标图像，并且基于 第一会场中的目标对象的位置，目标图像中的第二场景的图像的位置对应于第一会场中的目标对象的位置，并将目标图像实时发送到 显示设备位于第二个会场。
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6.发明授权公开(公告)号：US12165366B2
公开(公告)日：2024-12-10
申请号：US17145998
申请日：2021-01-11
Applicant: Huawei Technologies Co., Ltd.
Inventor： Dejun Zhang , Bo Liu , Wei Hu , Wenhai Wu , Tian Wang
Abstract: A point cloud decoding method related to the field of coding technologies and includes reconstructing a point cloud comprising one or more patches. The one or more patches comprise a current patch. The reconstructing process may include transforming coordinates (x2, y2) of a second point of the current patch in a second coordinate system to coordinates (x1, y1) of a first point of the current patch in a first coordinate system, where the coordinates (x1, y1) of the first point of the current patch in the first coordinate system may be obtained based on the coordinates (x2, y2) of the second point of the current patch in the second coordinate system and a transform matrix.
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公开(公告)号：US09392218B2
公开(公告)日：2016-07-12
申请号：US14972222
申请日：2015-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanling Guo , Tian Wang , Dejun Zhang
IPC: H04N7/14 , H04N7/15 , H04N19/172 , H04N19/182 , H04N19/186 , H04N19/503 , G06T7/00
CPC classification number: H04N7/142 , G06T7/11 , G06T7/194 , G06T7/50 , G06T2207/10024 , G06T2207/10028 , H04N7/15 , H04N19/115 , H04N19/167 , H04N19/17 , H04N19/172 , H04N19/182 , H04N19/186 , H04N19/29 , H04N19/503 , H04N19/597
Abstract: An image processing method may include collecting a video image and a depth map of an object; segmenting, using the depth map, a video image frame corresponding to the video image at a same moment to obtain a contour of a foreground image in the video image frame; performing, according to the contour of the foreground image, first encoding on pixels of a video image inside the contour of the foreground image in the video image frame and second encoding on pixels of a video image outside the contour in the video image frame, where an encoding rate of the first encoding is higher than an encoding rate of the second encoding. According to the embodiments of the present disclosure, an occupation rate of network bandwidth in a video image transmission process can be lowered.
Abstract translation: 图像处理方法可以包括收集对象的视频图像和深度图; 使用深度图分割在同一时刻对应于视频图像的视频图像帧，以获得视频图像帧中的前景图像的轮廓; 根据前景图像的轮廓对视频图像帧中的前景图像的轮廓内的视频图像的像素进行第一编码，并对视频图像帧中的轮廓外的视频图像的像素进行第二编码，其中 第一编码的编码率高于第二编码的编码率。 根据本公开的实施例，可以降低视频图像传输处理中的网络带宽的占用率。
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公开(公告)号：US09848168B2
公开(公告)日：2017-12-19
申请号：US15262596
申请日：2016-09-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tian Wang , Yanling Guo , Bo Liu
Abstract: A method, device, and system for implementing a video conference includes obtaining in real time an image of a first scene from a main camera located in a first conference site, obtaining in real time an image of a second scene from an auxiliary camera located in the first conference site, the second scene is a part of the first scene, and the second scene includes a target object, generating a target image in real time according to the image of the first scene and the image of the second scene and based on a location of the target object in the first conference site, a location of the image of the second scene in the target image is corresponding to the location of the target object in the first conference site, and sending the target image in real time to a display device located in a second conference site.
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公开(公告)号：US20160105636A1
公开(公告)日：2016-04-14
申请号：US14972222
申请日：2015-12-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yanling Guo , Tian Wang , Dejun Zhang
IPC: H04N7/14 , H04N19/172 , G06T7/00 , H04N19/186 , H04N19/503 , H04N7/15 , H04N19/182
CPC classification number: H04N7/142 , G06T7/11 , G06T7/194 , G06T7/50 , G06T2207/10024 , G06T2207/10028 , H04N7/15 , H04N19/115 , H04N19/167 , H04N19/17 , H04N19/172 , H04N19/182 , H04N19/186 , H04N19/29 , H04N19/503 , H04N19/597
Abstract: An image processing method may include collecting a video image and a depth map of an object; segmenting, using the depth map, a video image frame corresponding to the video image at a same moment to obtain a contour of a foreground image in the video image frame; performing, according to the contour of the foreground image, first encoding on pixels of a video image inside the contour of the foreground image in the video image frame and second encoding on pixels of a video image outside the contour in the video image frame, where an encoding rate of the first encoding is higher than an encoding rate of the second encoding. According to the embodiments of the present disclosure, an occupation rate of network bandwidth in a video image transmission process can be lowered.
Abstract translation: 图像处理方法可以包括收集对象的视频图像和深度图; 使用深度图分割在同一时刻对应于视频图像的视频图像帧，以获得视频图像帧中的前景图像的轮廓; 根据前景图像的轮廓对视频图像帧中的前景图像的轮廓内的视频图像的像素进行第一编码，并对视频图像帧中的轮廓外的视频图像的像素进行第二编码，其中 第一编码的编码率高于第二编码的编码率。 根据本公开的实施例，可以降低视频图像传输处理中的网络带宽的占用率。
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