A new steerable pressure force for parametric deformable models

Jun Kong*, Lee Cooper, Ashish Sharma, Tahsin Kurc, Daniel Brat, Joel Saltz

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2011
Subtitle of host publicationImage Processing
Volume7962
DOIs
StatePublished - 2011
EventMedical Imaging 2011: Image Processing - Lake Buena Vista, FL, United States
Duration: Feb 14 2011Feb 16 2011

Conference

ConferenceMedical Imaging 2011: Image Processing
CountryUnited States
CityLake Buena Vista, FL
Period2/14/112/16/11

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Radiology Nuclear Medicine and imaging

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