Medical CT Image Preprocessing Based on Edge Detection and Spline Fitting

摘要：

According to the characteristic that the medical CT image data are area samplings, a new preprocessing approach for CT image is presented in this paper. It firstly constructs mapping relationship between area sampling and point sampling, then detect the image edge with Sobel operator, and divide the CT image into different regions based on human tissue feature,and finally, in each divided region, establishes fitting equations with cubic spline, so as to transform area sampling values to more accurate approximations of point sampling values. Using the new transformed values to reconstruct 3-D medical image can improve reconstruction quality. Experiments show that the 3-D reconstructed image based on CT data preprocessed by the new approach can have more detail information.

作者: Jing Chi Xiaoming Wu Caiming Zhang

作者单位: School of Computer Science and Technology,Shandong University,Jinan,250101,China;Department of Comp Shandong Computer Science Center,Ji nan,250014,China Department of Computer Science and Technology,Shandong Economic University,Jinan,250014,China

会议类型: 国际会议

会议名称: 2008 IEEE International Symposium on IT in Medicine and Education(2008信息技术在医学和教育中的应用国际研讨会)(ITME 2008)

会议地点: 厦门

会议语种:英文

页码: 709-714

在线出版日期: 2008-12-12（万方平台首次上网日期，不代表论文的发表时间）