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公开(公告)号：US10885638B2
公开(公告)日：2021-01-05
申请号：US16229810
申请日：2018-12-21
摘要： For each frame of a video, a determination is made whether an image of a hand exists in the frame. When at least one frame of the video includes the image of the hand, locations of the hand in the frames of the video are tracked to obtain a tracking result. A verification is performed to determine whether the tracking result is valid in a current frame of the frames of the video. When the tracking result is valid in the current frame of the video, a location of the hand is tracked in a next frame. When the tracking result is not valid in the current frame, localized hand image detection is performed on the current frame.
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公开(公告)号：US20200334466A1
公开(公告)日：2020-10-22
申请号：US16757412
申请日：2018-09-18
申请人： BEIJING JINGDONG SHANGKE INFORMATION TECHNOLOGY CO., LTD. , BEIJING JINGDONG CENTURY TRADING CO., LTD.
发明人： Peiming ZHOU , Yun YE , Aixi ZHANG , Junhui WU , Yu CHEN , Zhi WENG
摘要： A person tracking method, comprising: acquiring N frames in units of time windows; acquiring, in time windows, tracking paths of a target person according to the N frames; and constructing continuous tracking paths by means of continuous time windows, so as to obtain the tracking results of the target person.
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公开(公告)号：US10679349B2
公开(公告)日：2020-06-09
申请号：US15596615
申请日：2017-05-16
申请人： ESAOTE S.p.A.
发明人： Paolo Nicolardi , Paolo Semplici
摘要： Methods are provided for estimating motion between images associated with a common region of interest, the method comprising: providing frames including a reference frame and a target frame; determining a global motion vector based on a comparison of the reference and target frames; for a plurality of local blocks, determining local motion vectors between the reference and target frames based on the global motion vector to form globally adjusted local motion vectors; considering the globally adjusted local motion vectors as motion estimator. A corresponding system is also disclosed.
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公开(公告)号：US10282850B2
公开(公告)日：2019-05-07
申请号：US15492769
申请日：2017-04-20
发明人： Ronald J. Wroblewski
摘要： A system is provided for determining coordinated motion between objects. The system includes a velocity data receiving component, a position data receiving component, a multidimensional indexing component and a determining component. The velocity data receiving component receives velocity data of the objects. The position data receiving component receives position data of the objects. The multidimensional indexing component generates multidimensional indices of the objects based on the velocity data and position data. The determining component determines whether there is coordinated motion between objects based on the multidimensional indices.
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公开(公告)号：US10248853B2
公开(公告)日：2019-04-02
申请号：US14977280
申请日：2015-12-21
发明人： Tomokazu Kawahara , Tatsuo Kozakaya , Osamu Yamaguchi , Mayumi Yuasa , Tomoki Watanabe , Mayu Okumura , Viet quoc Pham
摘要： According to an embodiment, an image output device includes an extractor, a search unit, an associate unit, and a controller. The extractor is configured to extract a first parameter that varies in accordance with a movement of an object from at least one first image of the object, and extract a second parameter that varies in accordance with a movement of the object from each second image of the object. The search unit is configured to search for a second parameter similar to the first parameter. The associate unit is configured to associate the first image from which the first parameter is extracted with the second image from which the second parameter that is retrieved with respect to the first parameter is extracted. The controller is configured to instruct an output unit to output an image based on the first and second images that are associated to each other.
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公开(公告)号：US11574408B2
公开(公告)日：2023-02-07
申请号：US17304961
申请日：2021-06-29
发明人： Zheng Bao , Tao Ji , Chun Wang , Dongjian Wang , Xuyun Chen
摘要： The present disclosure relates to a motion estimation method, a chip, an electronic device, and a storage medium. The present disclosure is beneficial to improving the accuracy of motion estimation.
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公开(公告)号：US11106893B1
公开(公告)日：2021-08-31
申请号：US16692643
申请日：2019-11-22
申请人： WAYMO LLC
发明人： Jiajun Zhu , Christopher Paul Urmson , Dirk Haehnel , Nathaniel Fairfield , Russell Leigh Smith
IPC分类号： G06K9/00 , B60T8/00 , B60W30/08 , B60R1/00 , B60T17/18 , B60T17/22 , G06T7/223 , G05D1/00 , G06T7/20 , G01S17/86 , G01C21/36 , G01S17/931 , B60T8/88 , G05D1/02 , G06T7/231 , B60T7/22 , G06T7/73 , G06T7/521 , B60T8/17 , B62D6/00 , G06K9/32 , G01S13/86 , B60W50/029 , B60W30/186
摘要： A method and apparatus are provided for optimizing one or more object detection parameters used by an autonomous vehicle to detect objects in images. The autonomous vehicle may capture the images using one or more sensors. The autonomous vehicle may then determine object labels and their corresponding object label parameters for the detected objects. The captured images and the object label parameters may be communicated to an object identification server. The object identification server may request that one or more reviewers identify objects in the captured images. The object identification server may then compare the identification of objects by reviewers with the identification of objects by the autonomous vehicle. Depending on the results of the comparison, the object identification server may recommend or perform the optimization of one or more of the object detection parameters.
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公开(公告)号：US10861167B2
公开(公告)日：2020-12-08
申请号：US16279849
申请日：2019-02-19
申请人： Arm Limited
发明人： Ozgur Tasdizen
摘要： A graphics processing system includes a processing circuit operable to render or decode a sequence of frames and generate extrapolated frames by extrapolating object motion from rendered or decoded frames. The system also includes a processing circuit operable to extrapolate object motion from first and second rendered or decoded frames in the sequence to a later extrapolated frame. The processing circuit is also operable to test candidate motion vectors from a region of the extrapolated frame through a region of the first frame to a region of the second frame by comparing the region of the first frame with the region of the second frame. A similarity measure from the comparison is used to select a motion vector and an indication representative of the selected motion vector is stored.
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公开(公告)号：US20190104278A1
公开(公告)日：2019-04-04
申请号：US16084512
申请日：2017-03-10
CPC分类号： H04N7/014 , B60R2001/1253 , B60R2300/101 , B60R2300/102 , B60R2300/105 , B60R2300/303 , B60R2300/802 , G06T7/223 , G06T7/231 , G06T7/80 , G06T2207/10016 , G06T2207/20021 , G06T2207/30252 , H04N5/145
摘要： The invention relates to a method for motion estimation between two images of an environmental region (9) of a motor vehicle (1) captured by a camera (4) of the motor vehicle (1), wherein the following steps are performed: a) determining at least two image areas of a first image as at least two first blocks (B) in the first image, b) for each first block (B), defining a respective search region in a second image for searching the respective search region in the second image for a second block (B) corresponding to the respective first block (B); c) determining a cost surface (18) for each first blocks (B) and its respective search region; d) determining an averaged cost surface (19) for one of the at least two first blocks (B) based on the cost surfaces (18); d) identifying a motion vector (v) for the one of the first blocks (B) describing a motion of a location of the first block (B) in the first image and the corresponding second block (B) in the second image. The invention also relates to a computing device (3), a driver assistance system (2) as well as a motor vehicle (1).
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公开(公告)号：US10198619B1
公开(公告)日：2019-02-05
申请号：US15874130
申请日：2018-01-18
申请人： Waymo LLC
发明人： Jiajun Zhu , Christopher Paul Urmson , Dirk Haehnel , Nathaniel Fairfield , Russell Leigh Smith
摘要： A method and apparatus are provided for optimizing one or more object detection parameters used by an autonomous vehicle to detect objects in images. The autonomous vehicle may capture the images using one or more sensors. The autonomous vehicle may then determine object labels and their corresponding object label parameters for the detected objects. The captured images and the object label parameters may be communicated to an object identification server. The object identification server may request that one or more reviewers identify objects in the captured images. The object identification server may then compare the identification of objects by reviewers with the identification of objects by the autonomous vehicle. Depending on the results of the comparison, the object identification server may recommend or perform the optimization of one or more of the object detection parameters.
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