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Proceedings Paper

A new non-uniformity response correction method of x-ray real time imaging system
Author(s): Min Yang; Hao Chen; Jun-Jiang Li; Yuan Wang; Cheng-xin Zhang
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Paper Abstract

For the X-ray real time imaging system base on image intensifier, the non-uniformity response among each pixel channel can not be ignored, which cause the fixed pattern noise and degrade the image quality obviously. In order to correct the non-uniformity response, a logarithm response model is created to fit the output-input characteristic curve of each pixel channel, then the correction coefficient table is obtained to make each pixel channel has the same response sensitivity. In practical application, the un-corrected image is divided by the correction coefficient table to get rid of the fixed pattern noise. The experimental results prove that the algorithm has an efficiency of real time correction and the corrected image quality can be increased effectively.

Paper Details

Date Published: 4 August 2009
PDF: 5 pages
Proc. SPIE 7385, International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications, 738519 (4 August 2009); doi: 10.1117/12.831464
Show Author Affiliations
Min Yang, Beijing Univ. of Aeronautics and Astronautics (China)
Hao Chen, China Academy of Engineering Physics (China)
Jun-Jiang Li, Beijing Univ. of Aeronautics and Astronautics (China)
Yuan Wang, China Academy of Engineering Physics (China)
Cheng-xin Zhang, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 7385:
International Symposium on Photoelectronic Detection and Imaging 2009: Terahertz and High Energy Radiation Detection Technologies and Applications
X.-C. Zhang; James M. Ryan; Cun-lin Zhang; Chuan-xiang Tang, Editor(s)

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