Abstract—This paper introduces a method of realizing fast
projectile digital imaging and a process of digital image
processing. Multi-exposure shadowgraphy, fast digital imaging,
and acquisition and digital image processing technologies were
employed to build a projectile fast imaging system. Through
quick interpretation of the spatial coordinates of a projectile,
measurement of the attitude angle and speed of a flying object
was realized. With this system, high accuracy interpretation and
computation of shadowgraphs can be performed quickly and
accurately by those having less experience and a priori
knowledge of shadowgraphs. By adopting multi-flash imaging
technology, we can extract not only the attitude of a flying object
but also information on speed, nutation, etc.