公开(公告)号：US20190057518A1

公开(公告)日：2019-02-21

申请号：US16053809

申请日：2018-08-03

Applicant: VIVOTEK INC.

Inventor： Cheng-Chieh Liu ,  Szu-Mo Chang ,  Chih-Yen Lin

IPC: G06T7/73 ,  G06T7/20 ,  G06T7/12

Abstract: An object counting device includes an image capturer and a processor. The image capturer captures an image sequence related to a gate within a field of view. When an object in the image sequence passes through an entry/exit reference corresponding to the gate, the processor determines a moving direction of the object. When the processor determines that the object moves from a first side of the gate towards a second side of the gate, the processor counts the object into a first accumulated number. When the object exits from the field of view, the processor records an exit position of the object. The processor determines whether to count the object into a second accumulated number according to the exit position.

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.

公开(公告)号：US10783380B2

公开(公告)日：2020-09-22

申请号：US16053809

申请日：2018-08-03

Applicant: VIVOTEK INC.

Inventor： Cheng-Chieh Liu ,  Szu-Mo Chang ,  Chih-Yen Lin

IPC: G06K9/00

Abstract: An object counting device includes an image capturer and a processor. The image capturer captures an image sequence related to a gate within a field of view. When an object in the image sequence passes through an entry/exit reference corresponding to the gate, the processor determines a moving direction of the object. When the processor determines that the object moves from a first side of the gate towards a second side of the gate, the processor counts the object into a first accumulated number. When the object exits from the field of view, the processor records an exit position of the object. The processor determines whether to count the object into a second accumulated number according to the exit position.

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

IPC: G06T15/00 ,  G06T17/00 ,  H04N7/18 ,  H04N13/00

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.

公开(公告)号：US20170278264A1

公开(公告)日：2017-09-28

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

CPC classification number: G06T7/70 ,  G06T7/20 ,  G06T2207/10021 ,  G06T2207/20092 ,  G06T2207/30196 ,  G06T2207/30232 ,  G06T2207/30242

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.

公开(公告)号：US20170272730A1

公开(公告)日：2017-09-21

申请号：US15427032

申请日：2017-02-07

Applicant: VIVOTEK INC.

Inventor： Cheng-Chieh Liu ,  Szu-Mo Chang ,  Kuan-Yu Lin

IPC: H04N13/02 ,  G06T7/70

CPC classification number: H04N7/18 ,  G06T15/20 ,  H04N2013/0081

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.

公开(公告)号：US20170019656A1

公开(公告)日：2017-01-19

申请号：US15201516

申请日：2016-07-04

Applicant: VIVOTEK INC.

Inventor： Cheng-Chieh Liu ,  Szu-Mo Chang ,  Yu-Kang Lin ,  Sheng-Yuan Chen

IPC: H04N13/02

CPC classification number: H04N13/246 ,  H04N13/239 ,  H04N13/296

Abstract: An automatic calibration system applied to a camera and a related automatic calibration method are disclosed. The automatic calibration method utilizes a motionless calibration plate to calculate a calibration parameter of the camera, the camera includes at least one image sensing unit, and the camera is assembled with a testing device. The automatic calibration method includes rotating the camera by a first shaft and a second shaft of the testing device to change an angle of the at least one image sensing unit of the camera toward the calibration plate, capturing a plurality of images containing the calibration plate by the camera while rotating, calculating the calibration parameter of the camera according to the images, and storing the calibration parameter.

Abstract translation: 公开了一种应用于相机的自动校准系统和相关的自动校准方法。 自动校准方法利用静止校准板来计算相机的校准参数，相机包括至少一个图像感测单元，并且相机与测试装置组装在一起。 自动校准方法包括通过测试装置的第一轴和第二轴旋转相机以将相机的至少一个图像感测单元的角度改变为校准板，通过以下方式捕获包含校准板的多个图像： 相机旋转时，根据图像计算相机的校准参数，并存储校准参数。