Depth-map-based scene analysis for active navigation in virtual angioscopy

被引:26
作者
Haigron, P
Bellemare, ME
Acosta, O
Göksu, C
Kulik, C
Rioual, K
Lucas, A
机构
[1] Univ Rennes 1, INSERM, LTSI, UMR 642, F-35042 Rennes, France
[2] CHU Hosp S, Dept Vasc Surg, F-35000 Rennes, France
关键词
active virtual sensor; automatic path planning; virtual angioscopy;
D O I
10.1109/TMI.2004.836869
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
This paper presents a new approach dealing with virtual exploratory navigation inside vascular structures. It is based on the notion of active vision in which only visual perception drives the motion of the virtual angioscope. The proposed fly-through approach does not require a premodeling of the volume dataset or an interactive control of the virtual sensor during the fly-through. Active navigation combines the on-line computation of the scene view and its analysis, to automatically define the three-dimensional sensor path. The navigation environment and the camera-like model are first sketched. The basic stages of the active navigation framework are then described: the virtual image computation (based on ray casting), the scene analysis process (using depth map), the navigation strategy, and the virtual path estimation. Experimental results obtained from phantom model and patient computed tomography data are finally reported.
引用
收藏
页码:1380 / 1390
页数:11
相关论文
共 55 条
[51]  
2
[52]   Virtual angioscopy in human coronary arteries with visualization of computational hemodynamics [J].
Wahle, A ;
Mitchell, SC ;
Ramaswamy, SD ;
Chandran, KB ;
Sonka, M .
MEDICAL IMAGING 2001: PHYSIOLOGY AND FUNCTION FROM MULTIDIMENSIONAL IMAGES, 2001, 4321 :32-43
[53]   Automatic centerline extraction for virtual colonoscopy [J].
Wan, M ;
Liang, ZR ;
Ke, Q ;
Hong, LC ;
Bitter, I ;
Kaufman, A .
IEEE TRANSACTIONS ON MEDICAL IMAGING, 2002, 21 (12) :1450-1460
[54]   Fast delineation and visualization of vessels in 3-D angiographic images [J].
Wink, O ;
Niessen, WJ ;
Viergever, MA .
IEEE TRANSACTIONS ON MEDICAL IMAGING, 2000, 19 (04) :337-346
[55]   Gray-scale skeletonization of small vessels in magnetic resonance angiography [J].
Yim, PJ ;
Choyke, PL ;
Summers, RM .
IEEE TRANSACTIONS ON MEDICAL IMAGING, 2000, 19 (06) :568-576