Method and apparatus for computer vision analysis of cannon-launched artillery video
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Authors
Yakimenko, Oleg A.
Kolsch, Mathias N.
Decker, Ryan J.
Subjects
Advisors
Date of Issue
2017-08-01
Date
Publisher
The Government of the United States of America, as represented by the Secretary of the Navy, Washington, DC (US)
Language
Abstract
Systems and methods are provided to quantify the pitching
and yawing motion of a projectile during ballistic flight
using two camera/tracker video systems. Image processing
tools are used to segment the shape of the projectile in each
frame of a launch video, which allows the location and
observed pitch angle to be calculated with sub-pixel accuracy.
Subsequent automated analysis uses the history of the
projectile location and the pitching behavior to calculate
estimates for the epicyclic motion, as well as other ballistic
parameters such as aeroballistic coefficients. Using two
cameras located at different orthographic views of the lineof-
fire (LOF) allows the pitching and yawing motion history
of the projectile to be calculated in three dimensions (3D).
In addition, input of the camera locations, cannon trunnion
location, and the cannon pointing direction allows for automatic
correction for camera misalignment.
Type
Patent
Description
Patent
Series/Report No
Department
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
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Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.