文章基本信息

标题：Set Down Study of Projectile in Flight Through Imaging
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作者：Suman Kumar Choudhury ; Pankaj Kumar Sa ; Banshidhar Majhi 等
期刊名称：Defence Science Journal
印刷版ISSN：0976-464X
出版年度：2014
卷号：64
期号：6
页码：530-535
DOI：10.14429/dsj.64.8114
语种：English
出版社：Defence Scientific Information & Documentation Centre
摘要：Deformation study of projectile immediately after firing is essential for its successful impact. A projectile that undergoes more than the tolerated amount of deformation in the barrel may not produce the requisite results. The study of projectile deformation before its impact requires it to be imaged in flight and perform some computation on the acquired image. Often the deformation tolerance is of the order of tens of micrometer and the acquired image cannot produce image with such accuracy because of photographic limitations. Therefore, it demands sub-pixel manipulation of the captured projectile image. In this work the diameter of a projectile is estimated from its image which became blur because of slow shutter speed. First the blurred image is restored and then various interpolation methods are used for sub-pixel measurement. Two adaptive geometrical texture based interpolation schemes are also proposed in this research. The proposed methods produce very good results as compared to the existing methods. Science Journal, Vol. 64, No. 6, November 2014, pp.530-535, DOI:http://dx.doi.org/10.14429/dsj.64.8114
关键词：Deblurring, sub-pixel, image interpolation, scaling, geometrical texture, edge orientation, Newton polynomial