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41.发明申请公开(公告)号：US20220058833A1
公开(公告)日：2022-02-24
申请号：US17445351
申请日：2021-08-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Esmaeil Faramarzi , Madhukar Budagavi , Rajan Laxman Joshi
Abstract: An encoding device and a method for point cloud encoding are disclosed. The method includes segmenting an area including points representing a three-dimensional (3D) point cloud into multiple voxels. The method also includes generating a patch information for each of the multiple voxels that include at least one of the points of the 3D point cloud. The method further includes assigning the patch information of the multiple voxels to the points included in each respective voxel, to generate patches that represent the 3D point cloud. Additionally, the method includes generating frames that include pixels that represent the patches. The method also includes encoding the frames to generate a bitstream and transmitting the bitstream.
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公开(公告)号：US20210320810A1
公开(公告)日：2021-10-14
申请号：US17225007
申请日：2021-04-07
Applicant: Samsung Electronics Co., Ltd.
Inventor： Prakash Kolan , Rajan Laxman Joshi , Madhukar Budagavi , Youngkwon Lim
Abstract: An apparatus includes a communication interface and a processor for providing volumetric conversational service. The communication interface receives a signaling message, from a plurality of user equipment (UEs), indicating a capability of the UEs to process participant volumetric content. The processor is operably coupled to the communication interface and identifies a conference associated with the UEs for which volumetric processing is requested. The processor further provisions a plurality of media resource functions in edge application servers of edge data networks for processing the participant volumetric content from the UEs. The processor assigns one or more of the UEs to a respective media resource function of the media resource functions. Additionally, the processor instructs the participant volumetric content received from the UEs to the media resource functions. The processor instructs conference volumetric content converted by the respective media resource functions to the UEs for the conference.
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公开(公告)号：US10944991B2
公开(公告)日：2021-03-09
申请号：US16590225
申请日：2019-10-01
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rajan Laxman Joshi
IPC: H04N19/597 , H04N19/172 , H04N19/105 , H04N19/137 , H04N13/275 , H04N13/161
Abstract: A decoding device, an encoding device and methods for point cloud encoding and decoding are disclosed. The method for decoding includes receiving a bitstream and decoding from the bit stream a first and second frame that is associated with a delta index. The first and second frames include patches that represent a 3D point cloud at different instances in time. The method additionally includes determining, based on decoding the delta index, that at least one of the patches included in the second frame matches a corresponding patch included in the first frame. The method further includes identifying a predictor index for a current patch; identifying a reference index associated with a reference patch in the first frame based on the delta index and the predictor index; and generating the 3D point cloud using the first frame, the second frame, and the reference patch.
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公开(公告)号：US10916041B2
公开(公告)日：2021-02-09
申请号：US16357133
申请日：2019-03-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rajan Laxman Joshi , Madhukar Budagavi
Abstract: A method for point cloud encoding includes generating, for a 3D point cloud, first and second frames representing the 3D point cloud at different depths, wherein the first and second frames each include a set of patches representing a cluster of points of the 3D point cloud. The method also includes encoding the first frame. After encoding the first frame, the method includes decoding the first frame. The method further includes generating a third frame representing a difference between corresponding points of the second frame and the decoded first frame. The method additionally includes encoding the third frame. The method also includes generating a compressed bitstream including the encoded first frame and the encoded third frame. The method further includes transmitting the compressed bitstream.
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公开(公告)号：US20240244232A1
公开(公告)日：2024-07-18
申请号：US18391526
申请日：2023-12-20
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Youngkwon Lim , Rajan Laxman Joshi , Madhukar Budagavi
IPC: H04N19/17
CPC classification number: H04N19/17
Abstract: An apparatus comprises a communication interface and a processor operably coupled to the communication interface. The communication interface is configured to receive a compressed bitstream including association information between scene objects and submeshes. The processor is configured to determine an index of a scene object, decode the association information between scene objects and submeshes, determine an identifier of a submesh based on the association information and the index of the scene object, and reconstruct the submesh based on the identifier.
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Patent Agency Ranking
公开(公告)号：US20240171786A1
公开(公告)日：2024-05-23
申请号：US18511315
申请日：2023-11-16
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rajan Laxman Joshi , Madhukar Budagavi
IPC: H04N21/2343 , H04N21/4402
CPC classification number: H04N21/2343 , H04N21/4402
Abstract: An apparatus includes a communication interface and a processor operably coupled to the communication interface. The processor is configured to form an LOD signal corresponding to a displacement field. The processor is further configured to identify one or more samples of the LOD signal. The processor is further configured to determine whether a set of values of the one or more samples has a positive skew or a negative skew and set a skew flag. The processor is further configured to convert the set of values to a set of unsigned symbols according to the determined positive skew or negative skew. The processor is further configured to perform binarization on the converted set of values. The processor is further configured to produce an output bitstream including encoding the LOD signal using the converted and binarized set of values and encoding the skew flag in the output bitstream.
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公开(公告)号：US20240095966A1
公开(公告)日：2024-03-21
申请号：US18447191
申请日：2023-08-09
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rajan Laxman Joshi , Madhukar Budagavi
Abstract: An apparatus includes a communication interface and a processor operably coupled to the communication interface. The processor is configured to form a level of detail (LOD) signal corresponding to a displacement field. The processor is also configured to identify a current sample in the LOD signal. The processor is further configured to derive a context for the current sample in the LOD signal. In addition, the processor is configured to produce an output bitstream by encoding the LOD signal using the context.
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公开(公告)号：US11706450B2
公开(公告)日：2023-07-18
申请号：US17447674
申请日：2021-09-14
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rajan Laxman Joshi , Madhukar Budagavi
IPC: H04N19/597 , H04N19/174 , H04N19/136 , H04N19/167 , H04N19/184 , H04N19/70
CPC classification number: H04N19/597 , H04N19/136 , H04N19/167 , H04N19/174 , H04N19/184 , H04N19/70
Abstract: A decoding device for point cloud decoding includes a communication interface and a processor. The communication interface configured to receive a bitstream. The processor is configured to identify, from the bitstream, messages and one or more sub-bitstreams representing a three-dimensional (3D) point cloud. The processor is configured to identify a query label indicating an object of the 3D point cloud for decoding. In response to determining that the query label corresponds to a label, the processor is configured to identify a 3D scene object associated with the query label. The processor is configured to identify a 2D tile that correspond to the 3D scene object. The processor is configured to determine to decode, based on an identification of the 2D tile from the sub-bitstream, a portion of the sub-bitstream corresponding to the 2D tile to generate a portion of a video frame representing a portion of the 3D scene object.
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公开(公告)号：US20210409768A1
公开(公告)日：2021-12-30
申请号：US17354997
申请日：2021-06-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Rajan Laxman Joshi , Madhukar Budagavi
IPC: H04N19/597 , H04N19/70 , H04N19/55 , H04N19/174 , H04N19/172
Abstract: A method for point cloud encoding includes generating, for a three-dimensional (3D) point cloud, video frames and atlas frames that includes pixels representing information about the 3D point cloud, wherein atlas tiles represent partitions in the atlas frames and video tiles represent partitions in the video frames. The method also includes setting a value for a syntax element according to relationships between sizes of the video tiles and sizes of the atlas tiles. The method further includes encoding the video frames and the atlas frames to generate video sub-bitstreams and an atlas sub-bitstream, respectively. Additionally, the method includes generating a bitstream based on the atlas sub-bitstream, the video sub-bitstreams, and the syntax element and transmitting the bitstream.
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公开(公告)号：US11210812B2
公开(公告)日：2021-12-28
申请号：US15929663
申请日：2020-05-14
Applicant: Samsung Electronics Co., Ltd
Inventor： Hossein Najaf-Zadeh , Madhukar Budagavi , Rajan Laxman Joshi
Abstract: A decoding device includes a communication interface and a processor. The communication interface is configured to receive a bitstream. The processor is configured to decode from the bitstream a first frame, a second frame and an occupancy map frame. The processor is also configured to reconstruct the 3D point cloud using the first frame, the second frame, and the occupancy map frame. The processor is further configured to perform a single pass of the occupancy map frame to identify points of the reconstructed 3D point cloud that correspond to a subset of pixels in the first frame and the second frame that are positioned within a proximity threshold to a boundary of any of the patches.
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