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公开(公告)号：US20220415055A1
公开(公告)日：2022-12-29
申请号：US17851060
申请日：2022-06-28
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Shun-Hsun Yu , Fu-Min Wang
Abstract: An image identification method is applied to an image surveillance apparatus and includes utilizing an object detecting function to generate a first bounding box and a second bounding box within a surveillance image, utilizing a foreground detecting function to generate a plurality of markers within the surveillance image, defining some of the plurality of markers which conform to the first bounding box as a first marker group and further defining other markers which do not conform to the first bounding box as a second marker group, determining whether the second marker group conforms to the second bounding box, and deciding whether the second bounding box belongs to an error of the object detecting function in accordance with a determination result.
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公开(公告)号：US20220189176A1
公开(公告)日：2022-06-16
申请号：US17537390
申请日：2021-11-29
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu
IPC: G06V20/52 , G06V40/20 , G06V10/762 , G06V10/74
Abstract: An object identification method is applied to a surveillance system. The surveillance system includes at least one surveillance apparatus. The object identification method includes acquiring a plurality of first feature vectors of a first moving object and a plurality of second feature vectors of at least one second moving object within a series of surveillance images from the surveillance apparatus, transforming the first feature vectors and the second feature vectors respectively into a first cluster distribution set and at least one second cluster distribution set, comparing similarity of the first cluster distribution set and the at least one second cluster distribution set, and setting a similarity ranking of the first cluster distribution set and the at least one second cluster distribution set according to a comparison result so as to determine whether the first moving object and the at least one second moving object are the same.
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公开(公告)号：US11138754B2
公开(公告)日：2021-10-05
申请号：US16831849
申请日：2020-03-27
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu
Abstract: A queue analyzing method is applied to an image monitoring apparatus and can automatically generate an interval threshold according to position variation of objects. The queue analyzing method includes computing a plurality of intervals between all objects inside an image, dividing the plurality of intervals at least into a first group corresponding to a low interval range and a second group corresponding to a high interval range, computing an interval mean value and an interval amending value of objects inside the first group, utilizing the interval mean value and the interval amending value to generate the interval threshold, and marking some adjacent objects conforming to the interval threshold within the image.
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公开(公告)号：US11049281B2
公开(公告)日：2021-06-29
申请号：US16671187
申请日：2019-11-01
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu
Abstract: An image calibrating method is applied to a first monitoring image and a second monitoring image partly overlapped with each other. The image calibrating method includes detecting a plurality of first marking points and second marking points about a target object on the first monitoring image and the second monitoring image, computing a first trace and a second trace formed by the first marking points and the second marking points, setting a plurality of first estimating points and second estimating points on stretching sections on the first trace and the second respectively within the second monitoring image and the first monitoring image, and utilizing the first marking points and the second estimating points and/or the first estimating points and the second marking points to compute a shift between the first monitoring image and the second monitoring image.
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公开(公告)号：US10719707B2
公开(公告)日：2020-07-21
申请号：US16188289
申请日：2018-11-13
Applicant: VIVOTEK INC.
Inventor： Sheng-Yuan Chen , Hsun-Shun Yu , Cheng-Chieh Liu
IPC: G06K9/00
Abstract: A pedestrian detection method is applied to a monitoring camera. The pedestrian detection method includes forming a first detecting window on at least one monitoring frame via an object analysis function, utilizing a human form detection function to modulate the first detecting window for forming a second detecting window, analyzing the second detecting window via a human local detection function to mark an upper detecting window about a pedestrian on the monitoring frame, and determining whether to calibrate the second detecting window via analysis of the upper detecting window.
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Patent Agency Ranking
公开(公告)号：US10528822B2
公开(公告)日：2020-01-07
申请号：US15936361
申请日：2018-03-26
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Chao-Ming Chang
Abstract: A visitor grouping method determines whether different visitors belong to an identical group according to a distance between the visitors and an initial position of the visitors in an image sequence, so as to analyze a proportion of number of individual visitors to number of grouped visitors. Furthermore, the visitor grouping method may further determine whether two groups belong to an identical group according to a distance between the groups and an initial position of the groups in the image sequence. Moreover, the visitor grouping method may determine whether a child group exists and then merge the child group with other groups. Accordingly, a specific site may design the display content and manner with respect to the properties of the visitors, so as to enhance service quality and operating efficiency.
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公开(公告)号：US10477089B2
公开(公告)日：2019-11-12
申请号：US16228576
申请日：2018-12-20
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Wen-Pin Hsieh , Ting-Wei Hsu
IPC: H04N5/225 , G08B13/196 , H04N5/232 , G06T7/73
Abstract: An image analysis method is applied to estimating a mounting position of a camera and includes utilizing the camera to capture an image toward a target region. The image includes at least one object of interest. The object of interest has a pixel height in the image. The image analysis method further includes obtaining an inclining angle and a rolling angle of the camera relative to the target region, calculating a mounting height of the camera relative to the target region according to an input height and the pixel height of the object of interest, an image capturing parameter of the camera, the inclining angle and the rolling angle, and performing video content analysis on the image according to the image capturing parameter, the inclining angle, the rolling angle and the mounting height of the camera.
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公开(公告)号：US10354361B2
公开(公告)日：2019-07-16
申请号：US15350098
申请日：2016-11-13
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Wei-Ming Liu
Abstract: An image stitching method is applied to a camera system with an image stitching function, so as to combine monitoring images captured from different view angles. The camera system includes two image capturing units respectively having a first coordinate system and a second coordinate system, and monitoring regions of the two image capturing units are adjacent and include an overlapped monitoring region. The image stitching method includes detecting at least one moving object within the overlapped monitoring region, calculating at least one set of transforming parameters of the first coordinate system relative to the second coordinate system, acquiring a reliability level according to comparison result generated by mutual comparisons between several sets of transforming parameters and then further comparing with a threshold respectively, determining a final transform parameter by the reliability level, and utilizing the final transform parameter to stitch the monitoring images captured by the two image capturing units.
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公开(公告)号：US10134151B2
公开(公告)日：2018-11-20
申请号：US15404177
申请日：2017-01-11
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Szu-Mo Chang , Wei-Ming Liu
IPC: G06T7/70
Abstract: A verification method for people counting includes steps of displaying a people counting video by a display device, wherein the people counting video shows an entry and exit boundary and an accumulated number of persons; when at least one person exists in the people counting video, displaying an initial position and a current position of each of the at least one person by the display device; determining whether each of the at least one person passes across the entry and exit boundary according to the initial position and the current position of each of the at least one person by a user, so as to determine whether the accumulated number of persons is incorrect; and when the user determines that the accumulated number of persons is incorrect, receiving a modified number of persons from the user by an input device.
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公开(公告)号：US10097737B2
公开(公告)日：2018-10-09
申请号：US15472261
申请日：2017-03-28
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Chao-Ming Chang , Wei-Ming Liu
Abstract: An image capture system includes a first image capture device, a second image capture device and a processing device, and the processing device is electrically connected to the first image capture device and the second image capture device. The first image capture device is configured to capture a first image, and the second image capture device is configured to capture a second image. The processing device is configured to receive first information transmitted from the first image capture device and second information transmitted from the second image capture device, and determines whether the first image and the second image have a same object based on the first information and the second information. If the processing device determines that the first image and the second image have the same object, the processing device synchronizes timestamps of the first image and the second image according to an event of the object.
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