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14 March 2011 A new steerable pressure force for parametric deformable models
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Proceedings Volume 7962, Medical Imaging 2011: Image Processing; 79623N (2011)
Event: SPIE Medical Imaging, 2011, Lake Buena Vista (Orlando), Florida, United States
Active contour models have been widely used in various image analysis applications. Despite their usefulness, there are problems limiting their utility, such as capture range, concavity conformation, and convergence rate. This paper presents a new pressure-like force that not only improves contour convergence rate, but also encourages contours to conform to concave regions. Unlike the traditional pressure force, this new force does not require users' input for the force direction and is steerable according to the image content. Better convergence rate as well as force normalization consistency of this new force are presented when compared with those of the gradient vector flow force field on synthetic images. Accuracies of these two methods are compared against the manual markups on a set of cardiac MRI images. Moreover, results on a MRI image smoothed at different levels demonstrate the robustness of this new force to noise.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jun Kong, Lee Cooper, Ashish Sharma, Tahsin Kurc, Daniel Brat, and Joel Saltz "A new steerable pressure force for parametric deformable models", Proc. SPIE 7962, Medical Imaging 2011: Image Processing, 79623N (14 March 2011);

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