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公开(公告)号：US12120465B2
公开(公告)日：2024-10-15
申请号：US18232257
申请日：2023-08-09
申请人： NEC Corporation
发明人： Hui Lam Ong , Satoshi Yamazaki , Hong Yen Ong , Wei Jian Peh
CPC分类号： H04N7/181 , G06V10/84 , G06V20/52 , G06V40/16 , G06V40/161 , G06V40/171 , G06V40/172
摘要： The method comprising determining a set of coordinates each for two or more appearances of a target subject within a sequence of images, the set of coordinates of the two or more appearances of the target subject defining a first path; determining a set of coordinates each for two or more appearances of a related subject within a sequence of images, the related subject relating to the target subject, the set of coordinates of the two or more appearances of the related subject defining a second path; determining one or more minimum distances between the first path and the second path so as to determine at least a region of interest; determining a timestamp of a first appearance and a timestamp of a last appearance of the target subject; and determining a timestamp of a first appearance and a timestamp of a last appearance of the related subject.
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公开(公告)号：US12100212B2
公开(公告)日：2024-09-24
申请号：US17439072
申请日：2020-03-24
申请人： NEC Corporation
发明人： Hui Lam Ong , Satoshi Yamazaki , Wen Zhang
CPC分类号： G06V20/52 , G06V10/255 , G06V20/647
摘要： Methods, systems and computer readable medium for object detection coverage estimation are provided. The system for object detection coverage estimation includes a camera and a processing means. The processing means is coupled to the camera to receive image data acquired by the camera, the image data including a detected object. The processing means is configured to determine a spatial coverage of the detected object based on detected object metadata associated with the detected object in the image data received from the camera.
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公开(公告)号：US12073697B2
公开(公告)日：2024-08-27
申请号：US17766846
申请日：2020-09-02
申请人： NEC Corporation
发明人： Hui Lam Ong , Hong Yen Ong , Xinlai Jiang , Satoshi Yamazaki
IPC分类号： G06V40/00 , G08B13/196
CPC分类号： G08B13/19602 , G06V40/00 , G08B13/19697
摘要： Present disclosure provides a method for managing an event to generate an alert indicating a subject is likely to be unauthorized, the event comprising data identifying the subject, the method comprising: within a pre-determined period based on a timestamp at which the event is stored in a cache, detecting a recall event comprising the data identifying the subject, the recall event indicating the subject is not likely to be unauthorized; and removing the event from the cache in response to detecting the recall event comprising the data identifying the subject within the pre-determined period.
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公开(公告)号：US11488387B2
公开(公告)日：2022-11-01
申请号：US16968640
申请日：2019-03-08
申请人： NEC Corporation
发明人： Wen Zhang , Arun Kumar Chandran , Hui Lam Ong
摘要： The present disclosure relates to methods and systems for identifying an individual in a crowd. The method comprises the steps of capturing a plurality of crowd-viewing images using multiple image-capturing devices. For each image, a reference point within a facial contour of a person in the image is selected. The reference point is selected based on a facial feature on the facial contour of the person. The method further comprises the step of processing the image to obtain one or more angular measurements associated with a posture displayed by the person in the image. Based on the obtained angular measurements, location data of a predetermined body point of the person relative to the reference point is extracted.
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公开(公告)号：US12133024B2
公开(公告)日：2024-10-29
申请号：US18232260
申请日：2023-08-09
申请人： NEC Corporation
发明人： Hui Lam Ong , Satoshi Yamazaki , Hong Yen Ong , Wei Jian Peh
CPC分类号： H04N7/181 , G06V10/84 , G06V20/52 , G06V40/16 , G06V40/161 , G06V40/171 , G06V40/172
摘要： The method comprising determining a set of coordinates each for two or more appearances of a target subject within a sequence of images, the set of coordinates of the two or more appearances of the target subject defining a first path; determining a set of coordinates each for two or more appearances of a related subject within a sequence of images, the related subject relating to the target subject, the set of coordinates of the two or more appearances of the related subject defining a second path; determining one or more minimum distances between the first path and the second path so as to determine at least a region of interest; determining a timestamp of a first appearance and a timestamp of a last appearance of the target subject; and determining a timestamp of a first appearance and a timestamp of a last appearance of the related subject.
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公开(公告)号：US11882387B2
公开(公告)日：2024-01-23
申请号：US17273384
申请日：2019-08-20
申请人： NEC Corporation
发明人： Hui Lam Ong , Satoshi Yamazaki , Hong Yen Ong , Wei Jian Peh
CPC分类号： H04N7/181 , G06V10/84 , G06V20/52 , G06V40/16 , G06V40/161 , G06V40/171 , G06V40/172
摘要： The method comprising determining a set of coordinates each for two or more appearances of a target subject within a sequence of images, the set of coordinates of the two or more appearances of the target subject defining a first path; determining a set of coordinates each for two or more appearances of a related subject within a sequence of images, the related subject relating to the target subject, the set of coordinates of the two or more appearances of the related subject defining a second path; determining one or more minimum distances between the first path and the second path so as to determine at least a region of interest; determining a timestamp of a first appearance and a timestamp of a last appearance of the target subject; and determining a timestamp of a first appearance and a timestamp of a last appearance of the related subject.
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公开(公告)号：US11250251B2
公开(公告)日：2022-02-15
申请号：US16642279
申请日：2019-08-16
申请人： NEC CORPORATION
发明人： Hui Lam Ong , Satoshi Yamazaki , Wei Jian Peh , Hong Yen Ong
IPC分类号： G06K9/00
摘要： There is provided a method for identifying potential associates of at least one target person, the method comprising: providing a plurality of videos; identifying appearances of the at least one target person in the plurality of videos; establishing a plurality of video scenes from the plurality of videos, wherein each one of the plurality of video scenes begins at a first predetermined duration before a first appearance of the at least one target person in the respective video scene and ends at a second predetermined duration after a last appearance of said at least one target person in the respective video scene; determining individuals who appear in more than a predetermined threshold number of the plurality of video scenes; and identifying the individuals as potential associates of the at least one target person.
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