Fast Sub-voxel Reinitialization of the Distance Map for Level Set Methods

K. Krissian, C.-F. Westin
0001
January, 2004

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Abstract

Redistancing the implicit surface is currently the most time-consuming stage in Level Set Methods, usually accomplished by applying the Fast Marching algorithm to a binarized image. We propose to apply a faster and linear approximation of the Euclidian Distance while maintaining the sub-voxel accuracy of the interface.

Result on segmenting the white matter in a SPGR MR Volume.

Reference

Krissian K, Westin CF. Fast sub-voxel reinitialization of the distance map for level set methods. Technical Report 0001, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Laboratory of Mathematics in Imaging, 2004. ISSN.

Bibtex entry

@TechReport{krissianLMI0001-04,
  author         = {Karl Krissian and Carl-Fredrik Westin},                    
  title          = {Fast Sub-voxel Reinitialization of the Distance Map for    
                   Level Set Methods},                                         
  institution    = {Department of Radiology, Brigham and Women's Hospital,     
                   Harvard Medical School},                                    
  year           = 2004,                                                       
  number         = 0001,                                                       
  address        = {Laboratory of Mathematics in Imaging},                     
  month          = {January},                                                  
  note           = {ISSN}
}

Grants

CIMIT

Research areas

Level Sets, Segmentation, Vascular