30 January 2012 A stereoscopic imaging system for laser back scatter based trajectory measurement in ballistics: part 2
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The progress on a laser- and stereo-camera-based trajectory measurement system that we already proposed and described in recent publications is given. The system design was extended from one to two more powerful, DSP-controllable LASER systems. Experimental results of the extended system using different projectile-/weapon combinations will be shown and discussed. Automatic processing of acquired images using common 3DIP techniques was realized. Processing steps to extract trajectory segments from images as representative for the current application will be presented. Used algorithms for backward-calculation of the projectile trajectory will be shown. Verification of produced results is done against simulated trajectories, once in terms of detection robustness and once in terms of detection accuracy. Fields of use for the current system are within the ballistic domain. The first purpose is for trajectory measurement of small and middle caliber projectiles on a shooting range. Extension to big caliber projectiles as well as an application for sniper detection is imaginable, but would require further work. Beside classical RADAR, acoustic and optical projectile detection methods, the current system represents a further projectile location method under the new class of electro-optical methods that have been evolved in recent decades and that uses 3D imaging acquisition and processing techniques.
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Uwe Chalupka, Uwe Chalupka, Hendrik Rothe, Hendrik Rothe, } "A stereoscopic imaging system for laser back scatter based trajectory measurement in ballistics: part 2", Proc. SPIE 8290, Three-Dimensional Image Processing (3DIP) and Applications II, 82900U (30 January 2012); doi: 10.1117/12.905965; https://doi.org/10.1117/12.905965

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