Tracking Background-oriented Schlieren: shock-wave image measurement of high-speed flying objects
Tracking background-oriented schlieren (Tracking BOS) of high-speed flying object for forensic investigation. We control a camera gaze direction towards the flying object using high-speed rotational mirrors and visual feedback. Moreover, we introduce striped background to visualize shock waves around the object as the background-oriented schlieren technique. Long-duration and high-resolution image measurement has become possible thanks to the high-speed mirror-based tracking, and the shock waves can be clearly visualized with appropriate image processing. We applied this Tracking BOS to three different types of objects, and regarding one object, we succeeded in observing unsteady shock-wave phenomena with the actual flying object.
Tracking BOS: shock-wave image measurement of high-speed flying objects
http://ishikawa-vision.org/mvf/Tracki...
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