FEATURE EXTRACTION OF BONES AND SKIN BASED ON ULTRASONIC SCANNING  

作　　者：Zheng Shuxian Zhao Wanhua Lu Bingheng Zhao Zhao 

机构地区：[1]State Key Laboratory for Manufacturing Systems Engineering, Xi＇an Jiaotong University, Xi＇an 710049, China [2]The First Hospital, Xi＇an Jiaotong University, Xi＇an 710049, China

出　　处：《Chinese Journal of Mechanical Engineering》2005年第4期510-514,共5页中国机械工程学报（英文版）

基　　金：This project is supported by National Hi-tech Research and Development Program of China(863 Program, No.2002AA421130)Excellent Doctoral Dissertation Fund(No.200026).

摘　　要：In the prosthetic socket design, aimed at the high cost and radiation deficiency caused by CT scanning which is a routine technique to obtain the cross-sectional image of the residual limb, a new ultrasonic scanning method is developed to acquire the bones and skin contours of the residual limb. Using a pig fore-leg as the scanning object, an overlapping algorithm is designed to reconstruct the 2D cross-sectional image, the contours of the bone and skin are extracted using edge detection algorithm and the 3D model of the pig fore-leg is reconstructed by using reverse engineering technology. The results of checking the accuracy of the image by scanning a cylinder work pieces show that the extracted contours of the cylinder are quite close to the standard circumference. So it is feasible to get the contours of bones and skin by ultrasonic scanning. The ultrasonic scanning system featuring no radiation and low cost is a kind of new means of cross section scanning for medical images.In the prosthetic socket design, aimed at the high cost and radiation deficiency caused by CT scanning which is a routine technique to obtain the cross-sectional image of the residual limb, a new ultrasonic scanning method is developed to acquire the bones and skin contours of the residual limb. Using a pig fore-leg as the scanning object, an overlapping algorithm is designed to reconstruct the 2D cross-sectional image, the contours of the bone and skin are extracted using edge detection algorithm and the 3D model of the pig fore-leg is reconstructed by using reverse engineering technology. The results of checking the accuracy of the image by scanning a cylinder work pieces show that the extracted contours of the cylinder are quite close to the standard circumference. So it is feasible to get the contours of bones and skin by ultrasonic scanning. The ultrasonic scanning system featuring no radiation and low cost is a kind of new means of cross section scanning for medical images.

关 键 词：Ultrasonic scanning image reconstruction Feature extraction Bones and skin Image accuracy 

分 类 号：TP391[自动化与计算机技术—计算机应用技术] TB55[自动化与计算机技术—计算机科学与技术]