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公开(公告)号：US20210027496A1
公开(公告)日：2021-01-28
申请号：US17070290
申请日：2020-10-14
IPC分类号： G06T7/80 , G06T7/73 , G06T7/246 , H04N13/246
摘要： A calibration apparatus calibrates parameters of imaging apparatuses which are disposed at different positions and image a common three-dimensional space. The calibration apparatus includes: an obtaining circuit which obtains videos captured by the imaging apparatuses and each including frames; an extraction circuit which extracts feature points from the frames included in the videos, the feature points including first feature points extracted from first frames included in the videos and second feature points extracted from areas containing an image of a moving object in second frames included in the videos and different from the first frames; a matching circuit which performs matching using the feature points, the matching including matching between the first feature points and matching between the second feature points; and a calibration circuit which calculates parameters of the imaging apparatuses based on first matching results obtained through the matching by the matching circuit.
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公开(公告)号：US20200034989A1
公开(公告)日：2020-01-30
申请号：US16580185
申请日：2019-09-24
IPC分类号： G06T7/80 , G06T7/73 , H04N13/246 , H04N13/243 , G05D1/00 , B64D47/08 , B64C39/02
摘要： A calibrator for cameras includes a controlling circuit, a photographing circuit, a calculating circuit, and an instructing circuit. The controlling circuit is configured to control a movable body in a shooting area of the cameras. A marker is provided on the movable body for calibration of the cameras. The photographing circuit is configured to control the cameras to photograph the marker at a first position at a first timing to generate first images. The photographing circuit is configured to control the cameras to photograph the marker at a second position at a second timing to generate second images. The calculating circuit is configured to calculate parameters of the cameras based on the first images and the second images. The instructing circuit is configured to transmit the parameters to the cameras to calibrate the cameras.
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公开(公告)号：US20240033888A1
公开(公告)日：2024-02-01
申请号：US18076619
申请日：2022-12-07
发明人： Tatsuya KOYAMA
IPC分类号： B25B27/14
CPC分类号： B25B27/14
摘要： An extraction tool that is configured to extract an object inside a hole includes: a grip having an end; a first member including a non-contact part provided at the end of the grip and not being able to come into contact with the object, and a contact layer provided at the end of the non-contact part and being able to come into contact with the object; and a second member surrounding at least a part of the first member. The non-contact part of the first member can slide with respect to the second member.
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公开(公告)号：US20180343442A1
公开(公告)日：2018-11-29
申请号：US16053102
申请日：2018-08-02
IPC分类号： H04N13/354 , H04N13/117 , H04N13/398
摘要： A video display method includes: selecting, as a first selected viewpoint, one first viewpoint from among a plurality of first viewpoints corresponding to a plurality of second videos, and displaying a second video corresponding to the first selected viewpoint; determining whether the first selected viewpoint is included in a plurality of second viewpoints corresponding to a plurality of fourth videos captured after the plurality of second videos; and selecting one second viewpoint from among the plurality of second viewpoints as a second selected viewpoint and displaying a fourth video that is included in the plurality of fourth videos and corresponds to the second selected viewpoint, when the first selected viewpoint is determined to not be included in the plurality of second viewpoints.
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公开(公告)号：US20150259076A1
公开(公告)日：2015-09-17
申请号：US14645108
申请日：2015-03-11
发明人： Tatsuya KOYAMA , Kaname TOMITA , Mitsuhiro TOSA
IPC分类号： B64D45/00
CPC分类号： B64D11/00151 , B64D11/0015 , B64D2045/007
摘要： A seat monitor includes a display unit that displays various types of information, a frame provided so as to surround the display unit, and an indicator provided to call a staff. The indicator is disposed on a side portion of the frame.
摘要翻译： 座椅监视器包括显示各种类型的信息的显示单元，围绕显示单元提供的框架以及用于呼叫工作人员的指示器。 指示器设置在框架的侧部。
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公开(公告)号：US20240272684A1
公开(公告)日：2024-08-15
申请号：US18441321
申请日：2024-02-14
发明人： Tatsuya KOYAMA
IPC分类号： G06F1/16
CPC分类号： G06F1/1679
摘要： A lock mechanism fixes connection between a first and second housings provided in an electronic device. The lock mechanism includes a lock portion provided in one of the first and second housings, and a fixing portion provided in the other thereof and fixing the lock portion by latching the lock portion in a first direction intersecting with a connection direction of the first and second housings. The lock portion includes an attachment portion attaching the lock portion to the one of the first and second housings, and a lock claw portion. When the first and second housings are connected, the lock claw portion is provided in the same direction as the attachment portion and at a position close to the fixing portion as viewed from the fixing portion in the connection direction, and is provided closer to the fixing portion than the attachment portion in the first direction.
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公开(公告)号：US20210335010A1
公开(公告)日：2021-10-28
申请号：US17370402
申请日：2021-07-08
摘要： A calibration method of calibrating, using a processor, parameters of a plurality of imaging apparatuses that capture a common three-dimensional space, includes: obtaining images captured by the plurality of imaging apparatuses; obtaining the parameters of the plurality of imaging apparatuses; for each of the images, generating at least one search window to extract a plurality of feature points of the image using the parameters; for each of the images, extracting the plurality of feature points from an inside of the at least one search window; performing feature point matching between the images using the plurality of feature points; and calibrating the parameters based on a plurality of matching results obtained.
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8.发明申请公开(公告)号：US20210027529A1
公开(公告)日：2021-01-28
申请号：US17066935
申请日：2020-10-09
摘要： A three-dimensional model processing method includes: generating, from first images shot by respective cameras at a first time, a first three-dimensional model including: first three-dimensional points indicating a subject at the first time; and first camera parameters indicating positions and orientations of the cameras; generating, from second images shot by the respective cameras at a second time, a second three-dimensional model including: second three-dimensional points indicating the subject at the second time; and second camera parameters indicating positions and orientations of the cameras; detecting a stationary camera among the cameras, whose position and orientation has not changed between the first and second times, or stationary three-dimensional points among the three-dimensional points, whose positions have not changed between the first and second times; and matching world coordinate systems of the first and second three-dimensional models, based on the first camera parameters of the stationary camera or the stationary three-dimensional points detected.
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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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