Title:
BIM AND VIDEO SURVEILLANCE-BASED MUSEUM VISIT ANALYSIS METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/178729
Kind Code:
A1
Abstract:
The present invention provides a BIM and video surveillance-based museum visit analysis method, comprising: S1, performing laser point cloud scanning on the interior of a museum to complete museum BIM modeling and generate a voxel model, and recording a camera pose fitting result into a BIM model; S2, calling a video stream, intercepting a corresponding video frame, calibrating intrinsic parameters of a camera, and integrating the results as a matrix camera intrinsic matrix K; S3, according to the voxel model, a camera pose, and intrinsic parameters K of the camera, calculating three-dimensional voxel coordinates corresponding to pixel coordinates of the video stream, acquiring a correspondence between pixels and voxels, and completing spatial registration between a surveillance video image and the BIM model; S4, detecting human body key points in the video frame, storing biped node pixel positions in the human body key point results, and accessing the correspondence between pixels and voxels to perform indoor positioning on a visitor; and S5, obtaining visit durations of all exhibition areas and exhibits, and calculating statistics on degrees of interest.
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Inventors:
XUE FAN (CN)
YEH ANTHONY GARON (CN)
WU YIJIE (CN)
YANG ZHONGZE (CN)
YEH ANTHONY GARON (CN)
WU YIJIE (CN)
YANG ZHONGZE (CN)
Application Number:
PCT/CN2022/084962
Publication Date:
September 28, 2023
Filing Date:
April 02, 2022
Export Citation:
Assignee:
THE UNIV OF HONG KONG SHENZHEN INSTITUTE OF RESEARCH AND INNOVATION (CN)
International Classes:
G06F9/451; G06T17/00; G06T19/00
Foreign References:
| CN111967443A | 2020-11-20 | |||
| CN114137564A | 2022-03-04 | |||
| CN111192321A | 2020-05-22 | |||
| CN113538373A | 2021-10-22 | |||
| US20220005332A1 | 2022-01-06 |
Attorney, Agent or Firm:
SHENZHEN SHENKESHEN PATENT AGENCY CO., LTD. (CN)
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