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公开(公告)号：US10783668B2
公开(公告)日：2020-09-22
申请号：US16219433
申请日：2018-12-13
摘要： A decoder, an encoder and a method for decoding 3D point cloud data. The decoder includes a communication interface configured to receive an encoded bit stream comprising the 3D point cloud data and a processor. The processor is configured to decode the bit stream to identify a plurality of 2D frames; identify corresponding pixels in two or more geometry frames in the plurality of 2D frames based on locations of the corresponding pixels in the two or more geometry frames; identify depth values of the corresponding pixels in the two or more geometry frames; identify duplicate points in at least one of the two or more geometry frames based on the identified depth values of the corresponding pixels in the two or more geometry frames; and remove or ignore the identified duplicate points while reconstructing the 3D point cloud data.
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公开(公告)号：US20200219286A1
公开(公告)日：2020-07-09
申请号：US16734224
申请日：2020-01-03
摘要： An encoding device and methods for point cloud encoding are disclosed. The method for encoding includes generating, using a processor of an encoder, a first frame and a second frame that include patches representing a cluster of points of three-dimensional (3D) point cloud; identifying a patch to segment in the patches of the first frame and the second frame; determining, in response to identifying the patch, a path representing a boundary between segmented regions within the patch; segmenting the patch along the path into two patches for the first frame and the second frame; encoding the first frame and the second frame to generate a compressed bitstream; and transmitting, using a communication interface operably coupled to the processor, the compressed bitstream.
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公开(公告)号：US11924397B2
公开(公告)日：2024-03-05
申请号：US17381078
申请日：2021-07-20
IPC分类号： H04N13/282 , H04N13/139 , H04N13/167 , H04N13/178
CPC分类号： H04N13/282 , H04N13/139 , H04N13/167 , H04N13/178
摘要： A method for generating content includes receiving information regarding electronic devices respectively capturing content associated with an event. The method also includes identifying, based on the received information, one or more parameters for the electronic devices to use in capturing the content, the one or more parameters identified to assist in generating multi-view content for the event from the captured content. The method further includes identifying, based on the received information, a common resolution for the electronic devices to use in capturing the content. Additionally, the method includes identifying, based on the received information, a common frame rate for the electronic devices to use in capturing the content. The method also includes sending information indicating the one or more parameters, the common resolution, and the common frame rate to the electronic devices.
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4.发明申请公开(公告)号：US20200020132A1
公开(公告)日：2020-01-16
申请号：US16460962
申请日：2019-07-02
摘要： A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes generating, for a 3D point cloud, a first 2D frame representing a first attribute and a second 2D frame representing a second attribute. The first 2D frame and the second 2D frame include respective clusters of projected points from the 3D point cloud. The method includes detecting missed points of the 3D point cloud and generating first and second additional points patches representing the first attribute and the second attribute, respectively, based on at least a subset of the missed points. The method includes including the first and second additional points patch in the first and second 2D frame, respectively. The method includes encoding the first 2D frame and the second 2D frame to generate a compressed bitstream and transmitting the compressed bitstream.
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公开(公告)号：US20190197739A1
公开(公告)日：2019-06-27
申请号：US16219433
申请日：2018-12-13
摘要： A decoder, an encoder and a method for decoding 3D point cloud data. The decoder includes a communication interface configured to receive an encoded bit stream comprising the 3D point cloud data and a processor. The processor is configured to decode the bit stream to identify a plurality of 2D frames; identify corresponding pixels in two or more geometry frames in the plurality of 2D frames based on locations of the corresponding pixels in the two or more geometry frames; identify depth values of the corresponding pixels in the two or more geometry frames; identify duplicate points in at least one of the two or more geometry frames based on the identified depth values of the corresponding pixels in the two or more geometry frames; and remove or ignore the identified duplicate points while reconstructing the 3D point cloud data.
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6.发明公开公开(公告)号：US20240085511A1
公开(公告)日：2024-03-14
申请号：US18149001
申请日：2022-12-30
发明人： Indranil Sinharoy , Yuming Zhu , Songwei Li
CPC分类号： G01S1/68 , G01S1/0428 , G01S5/0226 , G05D1/028 , G05D2201/0208
摘要： A method includes identifying a first anchor of a plurality of anchors as an initiator and identifying multiple second anchors of the plurality of anchors as multiple responders, the plurality of anchors located in a service area to be traversed by a robot. The method also includes sending, to the initiator and the responders via a wireless side-link, ranging information and a command to start ultra-wideband (UWB) ranging. The method also includes receiving, from the initiator via the wireless side-link, pair-wise range measurements representing UWB range measurements between the initiator and the responders. The method also includes generating initial location values for the initiator and the responders based on the pair-wise range measurements and one or more geometric constraints imposed on the initiator and the responders. The method also includes estimating 3D coordinates of the initiator and the responders using the initial location values.
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公开(公告)号：US11216984B2
公开(公告)日：2022-01-04
申请号：US16734224
申请日：2020-01-03
摘要： An encoding device and methods for point cloud encoding are disclosed. The method for encoding includes generating, using a processor of an encoder, a first frame and a second frame that include patches representing a cluster of points of three-dimensional (3D) point cloud; identifying a patch to segment in the patches of the first frame and the second frame; determining, in response to identifying the patch, a path representing a boundary between segmented regions within the patch; segmenting the patch along the path into two patches for the first frame and the second frame; encoding the first frame and the second frame to generate a compressed bitstream; and transmitting, using a communication interface operably coupled to the processor, the compressed bitstream.
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8.发明授权公开(公告)号：US11138762B2
公开(公告)日：2021-10-05
申请号：US16460962
申请日：2019-07-02
摘要： A decoding device, an encoding device and a method for point cloud decoding is disclosed. The method includes generating, for a 3D point cloud, a first 2D frame representing a first attribute and a second 2D frame representing a second attribute. The first 2D frame and the second 2D frame include respective clusters of projected points from the 3D point cloud. The method includes detecting missed points of the 3D point cloud and generating first and second additional points patches representing the first attribute and the second attribute, respectively, based on at least a subset of the missed points. The method includes including the first and second additional points patch in the first and second 2D frame, respectively. The method includes encoding the first 2D frame and the second 2D frame to generate a compressed bitstream and transmitting the compressed bitstream.
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公开(公告)号：US20230199161A1
公开(公告)日：2023-06-22
申请号：US18064918
申请日：2022-12-12
发明人： Saifeng Ni , Madhukar Budagavi , Indranil Sinharoy
IPC分类号： H04N13/117 , H04N13/25 , H04N13/167 , H04N13/368
CPC分类号： H04N13/117 , H04N13/25 , H04N13/167 , H04N13/368
摘要： An apparatus for three dimensional (3D) art viewing includes one or more sensors and a processor operably coupled to the one or more sensors. The processor is configured to detect, using the one or more sensors, a position of a user. The processor is additionally configured to output, for display, an aspect of an image based on the position of the user. The processor is also configured to obtain, using the one or more sensors, movement data associated with a movement of the user. The processor is further configured to apply temporal smoothing to smooth the movement data. In addition, the processor is configured to map the smoothed movement data to a series of view indices. The processor is also configured to change the aspect of the image for display based on the mapped series of view indices.
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公开(公告)号：US20230113061A1
公开(公告)日：2023-04-13
申请号：US17938300
申请日：2022-10-05
发明人： Yuming Zhu , Indranil Sinharoy , Songwei Li , Boon Loong Ng , Jianzhong Zhang
IPC分类号： B25J13/00
摘要： A method includes, when a handheld device is in motion within a service area to be traversed by a robot: obtaining ultra-wideband (UWB) ranging measurements between the handheld device and multiple anchors located in the service area; and obtaining image data and inertial measurement unit (IMU) data. The method also includes determining a trajectory of motion of the handheld device based on the UWB ranging measurements. The method also includes adjusting the trajectory based on image features obtained from the image data and motion estimates obtained from the IMU data. The method also includes identifying the adjusted trajectory as a boundary of the service area.
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