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Optical Engineering

Image fusion method for radiography of dense objects
Author(s): Yonghong Guan; Chao Huang; Ruigen Liu; Jun Liu
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Paper Abstract

We present an image fusion method for determining optical length in radiography of dense objects. We first show that the scatter received in the screen-films (SFs) can be treated as a constant when a grade collimation is arranged properly in the radiographic image system. Then the nonlinear radiographic imaging process can be demonstrated by a monotonous nonlinear function, which is determined by the whole system. The optical length of the fused image is derived from a weighted sum of the optical length conversed from the single image directly, and the weight of the optical length is determined by the greatest derivation of the function. Experiment results show that the algorithm has improved the signal-to-noise ratio (SNR) of the fused image and extended the dynamic range of the receivers.

Paper Details

Date Published: 1 July 2009
PDF: 6 pages
Opt. Eng. 48(7) 077004 doi: 10.1117/1.3159870
Published in: Optical Engineering Volume 48, Issue 7
Show Author Affiliations
Yonghong Guan, Chinese Academy of Engineering Physics (China)
Chao Huang, Chinese Academy of Engineering Physics (China)
Ruigen Liu, Chinese Academy of Engineering Physics (China)
Jun Liu, Chinese Academy of Engineering Physics (China)

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