학술논문

Tracking Monotonically Advancing Boundaries in Image Sequences Using Graph Cuts and Recursive Kernel Shape Priors
Document Type
Periodical
Source
IEEE Transactions on Medical Imaging IEEE Trans. Med. Imaging Medical Imaging, IEEE Transactions on. 31(5):1008-1020 May, 2012
Subject
Bioengineering
Computing and Processing
Shape
Level set
Image segmentation
Mathematical model
Bayesian methods
Image sequences
Vectors
Bayesian vision
contour tracking
cortical spreading depression
Gaussian Markov random fields
Gaussian process
graph cut
level set method
optical intrinsic signal imaging
particle filter
segmentation
shape prior
shape statistics
wound healing assay
Language
ISSN
0278-0062
1558-254X
Abstract
We introduce a probabilistic computer vision technique to track monotonically advancing boundaries of objects within image sequences. Our method incorporates a novel technique for including statistical prior shape information into graph-cut based segmentation, with the aid of a majorization–minimization algorithm. Extension of segmentation from single images to image sequences then follows naturally using sequential Bayesian estimation. Our methodology is applied to two unrelated sets of real biomedical imaging data, and a set of synthetic images. Our results are shown to be superior to manual segmentation.