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公开(公告)号：US20230394754A1
公开(公告)日：2023-12-07
申请号：US18203925
申请日：2023-05-31
CPC分类号： G06T17/00 , G06T7/13 , G06T2207/10012
摘要： A three-dimensional model generation method executed by a computer includes: obtaining a first image generated by shooting a subject from a first viewpoint and a second image generated by shooting the subject from a second viewpoint; detecting, in at least the first image, a first line composed of a series of edges and corresponding to a contour of the subject; and generating first three-dimensional points representing the contour, in a three-dimensional space in the computer, based on the first image, the second image, and the first line.
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公开(公告)号：US20230005216A1
公开(公告)日：2023-01-05
申请号：US17943479
申请日：2022-09-13
摘要： A three-dimensional model generation method executed by an information processing device includes: obtaining images generated by shooting a subject from respective viewpoints; searching for a similar point that is similar to a first point in a first image among the images, from second points in a search area in a second image different from the first image, the search area being provided based on the first point; calculating an accuracy of a search result of the searching, using degrees of similarity between the first point and the respective second points; and generating a three-dimensional model using the search result and the accuracy.
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公开(公告)号：US20220277516A1
公开(公告)日：2022-09-01
申请号：US17746190
申请日：2022-05-17
发明人： Toru MATSUNOBU , Satoshi YOSHIKAWA , Masaki FUKUDA , Kensho TERANISHI , Pradit MITTRAPIYANURUK , Keng Liang LOI , Pongsak LASANG
IPC分类号： G06T17/00 , G06T19/00 , G06T3/40 , G06T7/90 , G06T7/70 , G01S17/89 , G01B11/26 , G01S7/4865 , G01S17/86
摘要： A three-dimensional model generation method executed by an information processing device includes: obtaining a first three-dimensional model from a measuring device that emits an electromagnetic wave and obtains a reflected wave which is the electromagnetic wave reflected by a measurement target to thereby generate a first three-dimensional model including first position information indicating first three-dimensional positions in the measurement target; obtaining a multi-viewpoint image generated by one or more cameras shooting the measurement target from different positions; and generating a second three-dimensional model by enhancing the definition of the first three-dimensional model using the multi-viewpoint image.
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4.发明申请公开(公告)号：US20220138971A1
公开(公告)日：2022-05-05
申请号：US17577733
申请日：2022-01-18
摘要： A three-dimensional displacement measuring method includes: calculating camera parameters of N cameras based on M correction images shot at M viewpoints by cameras including the N cameras, where N is an integer greater than 1 and M is an integer greater than N, the M viewpoints being mutually different; and measuring a displacement over time of a subject caused by vibration of the subject in a three-dimensional space, based on (1) sets of N images and (2) the camera parameters. The N images in each of the sets are generated by the N cameras shooting the subject at the same time, and the sets are generated at different times. The different times are set according to a frequency of the vibration of the subject.
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公开(公告)号：US20220114785A1
公开(公告)日：2022-04-14
申请号：US17560584
申请日：2021-12-23
摘要： A three-dimensional model generation method includes: generating a first three-dimensional model of a predetermined region from first frames; projecting the first three-dimensional model onto at least one second frame; and generating a second three-dimensional model in accordance with first pixels in the at least one second frame onto which the first three-dimensional model is not projected.
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公开(公告)号：US20210390717A1
公开(公告)日：2021-12-16
申请号：US17459219
申请日：2021-08-27
摘要： An object amount calculation apparatus includes: a receiver configured to obtain a first three-dimensional model and a second three-dimensional model different from the first three-dimensional model, each of the first three-dimensional model and the second three-dimensional model representing a same space, each of the first three-dimensional model and the second three-dimensional model being constituted with regions having respective attributes; and a processor configured to: align the first three-dimensional model and the second three-dimensional model based on at least one attribute of the first three-dimensional model and the second three-dimensional model; calculate, for each of the attributes, a difference between the first three-dimensional model aligned and the second three-dimensional model aligned; and output (i) a total amount of differences corresponding to two or more attributes among the attributes and (ii) information on the two or more attributes.
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公开(公告)号：US20170359578A1
公开(公告)日：2017-12-14
申请号：US15539418
申请日：2015-10-08
发明人： Satoshi YOSHIKAWA , Takahiro NISHI , Kengo TERADA
IPC分类号： H04N19/124 , H04N19/176 , H04N19/136 , H04N19/46
CPC分类号： H04N19/124 , H04N19/126 , H04N19/136 , H04N19/154 , H04N19/159 , H04N19/176 , H04N19/46
摘要： An encoding method which allows reduction in the amount of codes is provided. The encoding method includes: setting step S11 for setting a quantization matrix set; quantization step S12 for performing quantization on a target block using the selected quantization matrix; and encoding step S13 for encoding, in a mutually associated manner, the target block which has been subjected to the quantization and identification information for identifying the quantization matrix set which has been set. In setting step S11, a quantization matrix set selected from a plurality of quantization matrix sets is set as the quantization matrix set to be used to perform the quantization on the target block, the plurality of quantization matrix sets including a custom quantization matrix set which is arbitrarily specified and a plurality of defined quantization matrix sets which have been respectively defined in advance.
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公开(公告)号：US20210400189A1
公开(公告)日：2021-12-23
申请号：US17462630
申请日：2021-08-31
IPC分类号： H04N5/232 , G06T7/33 , G06F3/0484
摘要： A displacement detection method, performed by a computer, includes: obtaining (i) a first three-dimensional (3D) model representing a region at a first timing by 3D points and including first objects and (ii) a second three-dimensional model representing the region at a second timing by 3D points and including second objects, the second timing being different from the first timing; detecting, by use of attribute information of the first objects and the second objects, (i) first 3D points included in the first 3D model and (ii) second 3D points included in the second 3D model and associated with the respective first 3D points; performing alignment of the first 3D model and the second 3D model by use of the first 3D points and the second 3D points; and detecting displacement between the first 3D model and the second 3D model after the alignment.
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公开(公告)号：US20210029345A1
公开(公告)日：2021-01-28
申请号：US17071431
申请日：2020-10-15
IPC分类号： H04N13/239 , H04N13/25 , H04N13/246 , G06T7/174 , G06T7/80
摘要： A method of generating a three-dimensional model includes: calculating camera parameters of n cameras based on m first images, the m first images being captured from m different viewpoints by the n cameras, n being an integer greater than one, m being an integer greater than n; and generating the three-dimensional model based on n second images and the camera parameters, the n second images being captured from n different viewpoints by the n cameras, respectively.
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公开(公告)号：US20200027242A1
公开(公告)日：2020-01-23
申请号：US16577403
申请日：2019-09-20
摘要： A calibrator for a camera includes a controlling circuit, a photographing circuit, a calculating circuit, and an instructing circuit. The controlling circuit is configured to control a movable body to move into a shooting area of the camera. A marker is provided on the movable body for calibration of the camera. The photographing circuit is configured to control the camera to photograph the marker. The calculating circuit is configured to calculate at least one parameter of the camera based on the photographed marker. The instructing circuit is configured to transmit the at least one parameter to the camera to calibrate the camera.
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