机构：[1]Department of Electronic Engineering, Yunnan University, China[2]Department of Electronic Engineering, Fudan University, China[3]Department of Radiology, the First People’s Hospital of Yunnan Province, China医技片放射科云南省第一人民医院
A gradient vector flow (GVF) snake based method was proposed for pedicle segmentation in vertebral radiographs. Since pedicles were oval-shaped, the elliptical shape prior was used to constrain the evolution of the GVF snake. From segmented pedicles, some landmarks were automatically identified for 3D stereoradiographic reconstruction of vertebrae to reduce the observer variability. Ten radiographs including 260 pedicles were used to evaluate the segmentations. Results demonstrated that the distance between contours manually delineated by the user and those segmented by the proposed algorithm was far less than the distance resulted from the traditional GVF snake. The 3D reconstruction variance was reduced by using the landmarks obtained from the segmented pedicles. These results indicated that utilizing the elliptical shape prior improved the GVF snake for segmenting pedicles in radiographs, and the proposed method might be a useful preprocessing tool for 3D stereoradiographic reconstruction.
基金：
General Program of Basic Applied Research of Yunnan Province [2008CD079]; Science and Technology Research Project of Yunnan University [2009F33Q]
语种：
外文
被引次数：
WOS：
第一作者：
第一作者机构：[1]Department of Electronic Engineering, Yunnan University, China
推荐引用方式(GB/T 7714)：
Zhang Junhua,Shi Xinling,Wang Yuanyuan,et al.SNAKE-BASED APPROACH FOR SEGMENTING PEDICLES IN RADIOGRAPHS AND ITS APPLICATION IN THREE-DIMENSIONAL VERTEBRAE RECONSTRUCTION[J].2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING.2010,2569-2572.doi:10.1109/ICIP.2010.5652596.
APA：
Zhang, Junhua,Shi, Xinling,Wang, Yuanyuan,Lv, Liang&Wu, Jun.(2010).SNAKE-BASED APPROACH FOR SEGMENTING PEDICLES IN RADIOGRAPHS AND ITS APPLICATION IN THREE-DIMENSIONAL VERTEBRAE RECONSTRUCTION.2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING,,
MLA：
Zhang, Junhua,et al."SNAKE-BASED APPROACH FOR SEGMENTING PEDICLES IN RADIOGRAPHS AND ITS APPLICATION IN THREE-DIMENSIONAL VERTEBRAE RECONSTRUCTION".2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING .(2010):2569-2572
