A novel data processing technique for image reconstruction of penumbral imaging

Hongwei Xie; Hongyun Li; Zeping Xu; Guzhou Song; Faqiang Zhang; Lin Zhou

doi:10.1117/12.896152

8 July 2011 A novel data processing technique for image reconstruction of penumbral imaging

Hongwei Xie, Hongyun Li, Zeping Xu, Guzhou Song, Faqiang Zhang, Lin Zhou

Proceedings Volume 8009, Third International Conference on Digital Image Processing (ICDIP 2011); 80091U (2011) https://doi.org/10.1117/12.896152
Event: 3rd International Conference on Digital Image Processing, 2011, Chengdu, China

Abstract

CT image reconstruction technique was applied to the data processing of the penumbral imaging. Compared with other traditional processing techniques for penumbral coded pinhole image such as Wiener, Lucy-Richardson and blind technique, this approach is brand new. In this method, the coded aperture processing method was used for the first time independent to the point spread function of the image diagnostic system. In this way, the technical obstacles was overcome in the traditional coded pinhole image processing caused by the uncertainty of point spread function of the image diagnostic system. Then based on the theoretical study, the simulation of penumbral imaging and image reconstruction was carried out to provide fairly good results. While in the visible light experiment, the point source of light was used to irradiate a 5mm×5mm object after diffuse scattering and volume scattering. The penumbral imaging was made with aperture size of ~20mm. Finally, the CT image reconstruction technique was used for image reconstruction to provide a fairly good reconstruction result.

Citation Download Citation

Hongwei Xie, Hongyun Li, Zeping Xu, Guzhou Song, Faqiang Zhang, and Lin Zhou "A novel data processing technique for image reconstruction of penumbral imaging", Proc. SPIE 8009, Third International Conference on Digital Image Processing (ICDIP 2011), 80091U (8 July 2011); https://doi.org/10.1117/12.896152

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