A Novel Data-Processing Technique for Image Reconstruction of Penumbral Imaging

摘要：

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, LucyRichardson 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 5mmx5mm 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.

关键词： CT (Computer Tomography) image reconstruction penumbral imaging coded aperture imaging image super-resolution

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

作者单位: Institute of Nuclear Physics and Chemistry, China Academy of Engineering PhysicsMianyang, Sichuan, P Northwest Institute of Nuclear TechnologyXian, Shaanxi, P.R.China, Postal Code: 710024 Institute of Nuclear Physics and Chemistry, China Academy of Engineering PhysicsMianyang, Sichuan, P

会议类型: 国际会议

会议名称: Third International Conference on Digital Image Processing(ICDIP 2011)(第三届数字图像处理国际会议)

会议地点: 成都

会议语种:英文

页码: 347-355

在线出版日期: 2011-04-15（万方平台首次上网日期，不代表论文的发表时间）