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公开(公告)号：US20210192212A1
公开(公告)日：2021-06-24
申请号：US16828951
申请日：2020-03-24
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu
Abstract: An object identification method determines whether a first monitoring image and a second monitoring image captured by a monitoring camera apparatus have the same object. The object identification method includes acquiring the first monitoring image at a first point of time to analyze a first object inside a first angle of view of the first monitoring image, acquiring the second monitoring image at a second point of the time different from the first point of time to analyze a second object inside the first angle of view of the second monitoring image, estimating a first similarity between the first object inside the first angle of view of the first monitoring image and the second object inside the first angle of view of the second monitoring image; and determining whether the first object and the second object are the same according to comparison result of the first similarity with a threshold.
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公开(公告)号：US20210174469A1
公开(公告)日：2021-06-10
申请号：US16703885
申请日：2019-12-05
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Hui-Chih Wang , Chang-Li Chen , Chao-Tan Huang
Abstract: An image stitching method applied to a monitoring camera apparatus with a first image receiver and a second image receiver for acquiring a first image and a second image. The image stitching method includes detecting a plurality of first features in the first image and a plurality of second features in the second image, dividing the plurality of first features at least into a first group and a second group and further dividing the plurality of second features at least into a third group, analyzing the plurality of first features and the plurality of second features via an identification condition to determine whether one of the first group and the second group is matched with the third group, and utilizing two matched groups to stitching the first image and the second image.
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公开(公告)号：US11030718B1
公开(公告)日：2021-06-08
申请号：US16703885
申请日：2019-12-05
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Hui-Chih Wang , Chang-Li Chen , Chao-Tan Huang
Abstract: An image stitching method applied to a monitoring camera apparatus with a first image receiver and a second image receiver for acquiring a first image and a second image. The image stitching method includes detecting a plurality of first features in the first image and a plurality of second features in the second image, dividing the plurality of first features at least into a first group and a second group and further dividing the plurality of second features at least into a third group, analyzing the plurality of first features and the plurality of second features via an identification condition to determine whether one of the first group and the second group is matched with the third group, and utilizing two matched groups to stitching the first image and the second image.
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公开(公告)号：US20200184672A1
公开(公告)日：2020-06-11
申请号：US16680507
申请日：2019-11-12
Applicant: VIVOTEK INC.
Inventor： Chao-Tan Huang , Cheng-Chieh Liu
IPC: G06T7/70
Abstract: An information measuring method is used for measuring installation information of a camera disposed over a plane with an installation height and oriented towards the plane with a shooting angle. The information measuring method includes steps of disposing a first reference point and a second reference point on the plane; measuring a first distance and a second distance between the first reference point, the second reference point and a third reference point; capturing an image including the first reference point, the second reference point and the third reference point; analyzing the image to define a first reference line and a second reference line; determining a first angle and a second angle according to the first reference line, the second reference line and a first normal line; and determining the installation height and/or the shooting angle according to the first distance, the second distance, the first angle and the second angle.
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公开(公告)号：US20200151418A1
公开(公告)日：2020-05-14
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：US10593059B1
公开(公告)日：2020-03-17
申请号：US16188314
申请日：2018-11-13
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Fu-Min Wang
Abstract: An object location estimating method with a timestamp alignment function is applied to an object location estimating device. The object location estimating method includes acquiring a plurality of first frames from a first camera, setting a first predetermined point of time, defining a first previous frame and a first next frame closest to the first predetermined point of time from the plurality of first frames, acquiring a first previous coordinate value of an object within the first previous frame and a first next coordinate value of the object within the first next frame, and utilizing the first previous coordinate value and the first next coordinate value to compute a first estimation coordinate value of the object at the first predetermined point of time.
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公开(公告)号：US10592775B2
公开(公告)日：2020-03-17
申请号：US15694997
申请日：2017-09-04
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Chih-Yen Lin
Abstract: An image processing method includes steps of receiving an image sequence; when at least one object appears in the image sequence, analyzing a moving trajectory of each object; extracting at least one characteristic point from each moving trajectory; classifying the at least one characteristic point of each moving trajectory within a predetermined time period into at least one cluster; and storing at least one characteristic parameter of each cluster.
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公开(公告)号：US20200051270A1
公开(公告)日：2020-02-13
申请号：US16455621
申请日：2019-06-27
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Chih-Yen Lin
Abstract: A queue information analyzing method is applied to an image analyzing apparatus. A monitoring image captured by the image analyzing apparatus has a triggering area. The queue information analyzing method includes identifying a first candidate object stayed within the triggering area, forming a sampling range via the first candidate object, determining whether a second candidate object stayed within the sampling range belongs to a queue of the first candidate object, and acquiring an amount and a accumulated time of candidate objects about the queue.
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公开(公告)号：US10380782B2
公开(公告)日：2019-08-13
申请号：US15427032
申请日：2017-02-07
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu , Szu-Mo Chang , Kuan-Yu Lin
Abstract: A method for transmitting and displaying an object tracking information includes steps of capturing an image by a camera, wherein an object exists in the image; analyzing the image by the camera to obtain a 3D world coordinate information of the object; transmitting a projection matrix and the 3D world coordinate information to a display device by the camera; using the projection matrix to convert the 3D world coordinate information into a 2D image coordinate information by the display device; and displaying a pattern corresponding to the object according to the 2D image coordinate information by the display device.
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60.发明授权公开(公告)号：US10368036B2
公开(公告)日：2019-07-30
申请号：US15354575
申请日：2016-11-17
Applicant: VIVOTEK INC.
Inventor： Cheng-Chieh Liu
Abstract: A pair of parking area sensing cameras, comprising a first parking area sensing camera configured to monitor a first parking area and generate a parking area status of the first parking area and a second parking area sensing camera configured to monitor a second parking area and generate a parking area status of the second parking area. The first parking area sensing camera is configured to display the parking area status of the second parking area.
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