Nov 11, 2025

US12467720 - High-precision infantry training system (HITS)

A method of determining a point-of-impact of a ballistic projectile comprising: within a predetermined site using a weapon comprising a barrel, a camera, and an IMU configured to provide data concerning barrel attitude: detecting a firing event associated with the weapon; obtaining metadata associated with the weapon; determining estimated pointing angles of the weapon; obtaining a reference image of the site; culling portions of the reference image not associated with the estimated pointing angles, creating a culled reference image; projecting the culled reference image onto an image plane; obtaining an image from the weapon-mounted camera, the image being centered on the pointing direction weapon at the time of firing; registering the image from the weapon-mounted camera with the culled reference image; and calculating the true pointing angles of the weapon based on the alignment of the image obtained by the weapon-mounted camera with the culled reference image.

Assignee: BAE Systems Information and Electronic Systems Integration Inc.
Inventors: Stephen P. DelMarco, Simone B. Bortolami, Helen F. Webb
Filing date: 2021-10-14

The patent describes a high-precision infantry training system that utilizes a weapon-mounted camera and inertial measurement unit to accurately determine the point-of-impact of a ballistic projectile. The method involves detecting a firing event, processing reference images, and calculating true pointing angles based on the alignment of images captured during the firing.

Claim 1

1 . A method of determining a point-of-impact of a ballistic projectile, the method comprising: within a predetermined site and using a weapon comprising a barrel, a weapon-mounted camera, and a weapon-mounted inertial measurement unit configured to provide data relating to weapon barrel attitude: detecting a firing event associated with the weapon; obtaining metadata associated with the weapon; determining estimated pointing angles of the weapon; obtaining a reference image of the predetermined site; culling portions of the reference image not associated with the estimated pointing angles of the weapon, creating a culled reference image; projecting the culled reference image onto an image plane; obtaining an image from the weapon-mounted camera, the image being centered on a pointing direction the weapon at the time of firing; registering the image from the weapon-mounted camera with the culled reference image; and calculating true pointing angles of the weapon based on an alignment of the image obtained by the weapon-mounted camera with the culled reference image. within a predetermined site and using a weapon comprising a barrel, a weapon-mounted camera, and a weapon-mounted inertial measurement unit configured to provide data relating to weapon barrel attitude: detecting a firing event associated with the weapon; obtaining metadata associated with the weapon; determining estimated pointing angles of the weapon; obtaining a reference image of the predetermined site; culling portions of the reference image not associated with the estimated pointing angles of the weapon, creating a culled reference image; projecting the culled reference image onto an image plane; obtaining an image from the weapon-mounted camera, the image being centered on a pointing direction the weapon at the time of firing; registering the image from the weapon-mounted camera with the culled reference image; and calculating true pointing angles of the weapon based on an alignment of the image obtained by the weapon-mounted camera with the culled reference image.

Google Patents

https://patents.google.com/patent/US12467720

USPTO PDF

https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/12467720