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

IPC: G06T3/40 ,  G06T7/33 ,  H04N7/18

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.

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.

公开(公告)号：US20250157002A1

公开(公告)日：2025-05-15

申请号：US18943970

申请日：2024-11-12

Applicant: VIVOTEK INC.

Inventor： Chao-Tan Huang

IPC: G06T5/50 ,  G06V10/774 ,  G06V20/52 ,  G06V20/62

Abstract: An image analysis method performed in a surveillance apparatus having an image receiver and a operation processor is provided. The image analysis method includes the operation processor controlling the image receiver to obtain a plurality of image frames including a first image frame and a second image frame, wherein a definition of a first feature block of the first image frame is different from a definition of a first feature block of the second image frame; and the operation processor taking the first feature block of the first image frame and the first feature block of the second image frame as training samples for training an image analysis model when the operation processor determines the first feature block of the first image frame meets a preset condition. Besides, a related surveillance apparatus is also provided.

公开(公告)号：US20240283897A1

公开(公告)日：2024-08-22

申请号：US18418375

申请日：2024-01-22

Applicant: VIVOTEK INC.

Inventor： Chao-Tan Huang

IPC: H04N7/18 ,  G06T7/13 ,  G06T7/50 ,  G06T7/60 ,  G06T7/73 ,  G06V20/52

CPC classification number: H04N7/183 ,  G06T7/13 ,  G06T7/50 ,  G06T7/60 ,  G06T7/73 ,  G06V20/52 ,  G06T2207/20021 ,  G06T2207/20084 ,  G06T2207/30232 ,  G06T2207/30242

Abstract: A 3D image mask analysis method is applied to an image surveillance apparatus having an image receiver and an operation processor. The 3D image mask analysis method includes establishing a 3D image mask with first depth information inside a surveillance image acquired by the image receiver, utilizing an object identification technology to acquire second depth information of a target object at least partly overlapped with the 3D image mask inside the surveillance image, and comparing the first depth information to the second depth information so as to determine whether an image of the target object is displayed inside the surveillance image in accordance with a comparison result.

公开(公告)号：US20240046497A1

公开(公告)日：2024-02-08

申请号：US18220284

申请日：2023-07-11

Applicant: VIVOTEK INC.

Inventor： Chao-Tan Huang

IPC: G06T7/60 ,  G06T7/11 ,  G06V10/74

CPC classification number: G06T7/60 ,  G06T7/11 ,  G06V10/761

Abstract: An image analysis method is applied to a camera apparatus and used to analyze the landform inside a detection image captured by the camera apparatus via a predefined installation angle. The image analysis method includes dividing the detection image into a plurality of first regions to acquire a plurality of first height, defining some first regions with the same height and adjacent to each other as a first reference plane area to acquire a first plane formula, selecting at least one first region adjacent to and outside the first reference plane area, applying the selected first region for the first plane formula to acquire a first planar height and comparing the first planar height with an initial first height of the at least one first region, and determining landform between the first reference plane area and the selected at least one first region in accordance with a comparison result.

公开(公告)号：US20220170740A1

公开(公告)日：2022-06-02

申请号：US17533073

申请日：2021-11-22

Applicant: VIVOTEK INC.

Inventor： Chao-Tan Huang

IPC: G01C5/00 ,  G06N20/00 ,  G06V20/52 ,  G06V10/22

Abstract: A floor height detection method is applied to a surveillance camera, and a surveillance image captured by the surveillance camera contains a surveillance region. The floor height detection method includes dividing the surveillance image at least into a first region and a second region, acquiring an actual installing height matrix of the surveillance camera upon the first region and the second region, and utilizing a matrix factorization algorithm to analyze the actual installing height matrix to acquire floor heights within the surveillance region.

公开(公告)号：US10915988B2

公开(公告)日：2021-02-09

申请号：US16435553

申请日：2019-06-09

Applicant: VIVOTEK INC.

Inventor： Chao-Tan Huang

IPC: G06T3/40 ,  G06T7/246 ,  G06T7/32

Abstract: An image stitching method capable of effectively decreasing an amount of sampling points is applied to a first monitoring image and a second monitoring image overlapped with each other and generated by a monitoring camera device. The image stitching method includes acquiring a first sampling point and a second sampling point respectively on the first monitoring image and the second monitoring image, detecting a first specific parameter of the first monitoring image and a second specific parameter of the second monitoring image, determining whether the first sampling point is matched with the second sampling point according to the first specific parameter and the second specific parameter, and deciding whether to stitch the first monitoring image and the second monitoring image by the first sampling point and the second sampling point according a determination result.