The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 04, 2026
Filed:
Jul. 25, 2023
Viettel Group, Ha Noi City, VN;
Anh Tuan Vu, Ha Noi City, VN;
Duc Thanh Nguyen, Ha Noi City, VN;
Van Duc Ha, Thanh Hoa City, VN;
Kim Duc Hoang, Cam Lo District, VN;
Thanh Nhon Nguyen, Ha Noi City, VN;
Anh Tra Duong, Ha Noi City, VN;
Tran Nam Nguyen, Hanoi City, VN;
VIETTEL GROUP, Ha Noi City, VN;
Abstract
A method to detect, identify and determine the position of laser points from infrared laser emitters in a firearm training simulation system. The method consists of two steps. This first step combines some common tools such as a camera with a filter switcher and edge and corner detecting algorithms in image processing to provide a fast automatic screen calibrating method. The second step is to detect laser point objects in each frame continuously captured by the camera, and then further process these objects to identify laser shots, filter out noisy objects, and eventually detect simulated shots from different laser emitters and determine the final mapped position of the shot.