3D tomographic reconstruction of binary images from cone beam projections: a fast level set approach
Proceedings IEEE International Symposium on Biomedical Imaging - Trang 677-680
Tóm tắt
This paper addresses 3D tomographic reconstruction of a binary image from a small number of cone-beam projections. Under the binary hypothesis, the object may be conveniently represented by its surfaces, and the reconstruction problem solved using active contour methods. To handle complex topologies, we formalize the problem in the framework of level sets using implicit descriptions of object boundaries. The expression of a velocity including projection data is derived in this context. In addition, regularization is introduced in order to manage both lack of data and noise. A fast implementation of the level set method is described. Results are presented both from realistic simulations and physical data.
Từ khóa
#Tomography #Image reconstruction #Level set #Surface reconstruction #Topology #X-ray imaging #Statistical analysis #Integral equations #Active contours #Biological system modelingTài liệu tham khảo
10.1088/0031-9155/43/4/025
matej, 0, Binary image reconstruction on a hexagonal grid using Gibbs prior
sethian, 1999, Level set methods and fast marching methods - Evolving interfaces in computational geometry fluid mechanics Computer Vision and Material Science
10.1109/ICIP.2001.959146
gomes, 1999, Reconciling distance functions and Level Sets, Sophia Antipolis INRIA Rapport de recherche n?, 3666
10.1006/gmod.1999.0520
10.1109/34.368173
10.1109/ICPR.2000.903738
10.1109/42.932748
10.1118/1.597223
10.1109/83.661193
10.1109/42.276144