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公开(公告)号：US10853910B2
公开(公告)日：2020-12-01
申请号：US16549668
申请日：2019-08-23
Inventor： Jihwan Woo , Sungtae Kim , Eric Yip
Abstract: A method for processing information regarding omni-directional images is provided. The method includes generating a first two-dimensional (2D) image projected from a first omni-directional image, generating a second 2D image projected from the second omni-directional image, generating a third 2D image corresponding to a 2D image projected from a third omni-directional image, generating a fourth 2D image projected from a fourth omni-directional image, generating a fifth 2D image corresponding to a 2D image projected from a fifth omni-directional image generating a sixth 2D image corresponding to a 2D image projected from a sixth omni-directional image, and generating a seventh 2D image corresponding to a 2D image projected from a seventh omni-directional image, a weight for the first omni-directional image, a weight for the second omni-directional image, and a weight for the fourth omni-directional image.
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公开(公告)号：US11368719B2
公开(公告)日：2022-06-21
申请号：US17258963
申请日：2019-07-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngho Oh , Jihwan Woo , Sungryeul Rhyu
IPC: H04N19/00 , H04N19/597 , H04N19/44 , H04N19/94 , H04N19/557 , H04N19/65 , H04N19/543 , H04N19/68 , H04N19/553 , H04N19/583 , H04N19/563
Abstract: A method of encoding a three-dimensional (3D) image including a point cloud includes grouping a plurality of points included in the point cloud into at least one segment; generating patches by projecting the points included in the segment onto a predetermined plane in a first direction or a second direction; generating two-dimensional (2D) images by packing the patches; and generating and outputting a bitstream including information about a direction in which each point is projected to generate the patches and information about the 2D images.
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Patent Agency Ranking
公开(公告)号：US11317074B2
公开(公告)日：2022-04-26
申请号：US16963374
申请日：2019-01-18
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jihwan Woo , Sungryeul Rhyu
IPC: H04N13/161 , H04N13/194 , H04N13/156 , H04N13/383 , H04N13/15 , H04N19/597
Abstract: A method for transmitting data for a three-dimensional image is provided. The method comprises the steps of: generating a plurality of voxelized points corresponding to a plurality of voxels, respectively, from a plurality of points constituting a three-dimensional image; grouping the plurality of voxelized points into a plurality of segments, wherein each of the plurality of segments includes at least one of the plurality of voxelized points; for each segment, projecting the plurality of points and generating a plurality of two-dimensional images; generating a packed two-dimensional image from the generated plurality of two-dimensional images; decoding data for the packed two-dimensional image, and encapsulating same; and transmitting the decoded and encapsulated data.
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公开(公告)号：US11430185B2
公开(公告)日：2022-08-30
申请号：US17048757
申请日：2019-04-22
Applicant: Samsung Electronics Co., Ltd.
Inventor： Jihwan Woo , Youngho Oh , Sungryeul Rhyu
Abstract: A method and an apparatus for compressing the three-dimensional data of a point cloud are disclosed. The present invention comprises, identifying a plurality of points constituting a point cloud, and projecting the plurality of identified points onto a projection plane so as to generate a projection image, wherein the bit number of projection points corresponding to the plurality of points projected in the projection image is determined on the basis of the distance between a first point closest to the projection plane and a second point farthest therefrom, on a normal with respect to the projection plane, among the plurality of points and/or on the basis of the number of intermediate points located between the first point and the second point.
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公开(公告)号：US11328453B2
公开(公告)日：2022-05-10
申请号：US16981021
申请日：2019-04-11
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngho Oh , Sungryeul Rhyu , Jihwan Woo
Abstract: Proposed in various embodiments of the present disclosure are a device and a method for image processing, whereby image conversion by dilation is carried out in a multimedia system. To this end, an electronic device for image processing may identify between a first unused area in a first picture and a second unused area in a second picture, the first unused area and the second unused area having the same time information. The electronic device may acquire fill values for replacing the first unused area and the second unused area, on the basis of a value acquired from the first unused area and a value acquired from the second unused area. The electronic device may acquire a first converted picture and a second converted picture by replacing the first unused area and the second unused area by using the acquired fill values.
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公开(公告)号：US12217464B2
公开(公告)日：2025-02-04
申请号：US17421704
申请日：2020-01-13
Applicant: Samsung Electronics Co., Ltd.
Inventor： Youngho Oh , Jihwan Woo , Sungryeul Rhyu
IPC: G06K9/46 , G06T3/40 , G06T9/00 , G06T17/00 , G06T17/20 , H04N19/117 , H04N19/44 , H04N19/463
Abstract: Provided is a method of processing and transmitting three-dimensional data represented as a point cloud.
The method of encoding three-dimensional (3D) data includes: generating a geometry image indicating position information of points, a texture image indicating color information of the points, and an occupancy map indicating occupancy information of the position information of the points in the geometry image, by projecting the points included in the 3D data onto a two-dimensional (2D) plane; generating a filtered occupancy map by performing filtering on the occupancy map; performing image padding on the geometry image and the texture image, based on the filtered occupancy map; and generating and outputting a bitstream including a padded geometry image, a padded texture image, a downsampled occupancy map, and information about the filtering performed on the occupancy map.-
公开(公告)号：US11887342B2
公开(公告)日：2024-01-30
申请号：US17275457
申请日：2019-10-04
Applicant: Samsung Electronics Co., Ltd. , UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Inventor： Sungryeul Rhyu , Jiheon Im , Junsik Kim , Kyuheon Kim , Youngho Oh , Jihwan Woo
CPC classification number: G06T9/001 , G06T3/0031 , G06T3/40
Abstract: The present disclosure relates to a method of encoding a three-dimensional image including a point cloud. According to an embodiment of the present disclosure, a method of encoding a three-dimensional image may include determining a spatial area in a three-dimensional space represented by the point cloud, projecting, onto a two-dimensional plane, a plurality of points included in the point cloud to generate a plurality of patches, determining at least one patch corresponding to the determined spatial area, down-sampling at least one patch according to a predefined rule, generating a two-dimensional image by packing the at least one down-sampled patch and the plurality of patches corresponding to areas other than the determined spatial area, and generating and outputting a bitstream including data in which the two-dimensional image is compressed and information related to the down-sampling performed to generate the two-dimensional image.
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