Designing and selecting features for MR image segmentation

Meijuan Yang, Yuan Yuan, Xuelong Li, Pingkun Yan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Deformable models have obtained considerable success in medical image segmentation, due to its ability of capturing the shape variation of the target structure. Boundary feature is used to guide contour deformation, which plays an decisive part in deformable model based segmentation. However, it is still a challenging task to obtain a distinctive image feature to describe the boundaries, since boundaries are not necessarily in accordance with edges or ridges. Another challenge is to infer the shape for the given image appearance. In this paper, the anatomical structures from MR images are aimed to be segmented. First, a new normal vector feature profile (NVFP) is employed to describe the local image appearance of a contour point formed by a series of modified SIFT local descriptors along the normal direction of that point. Second, the shape of the target structure is inferred by matching two image appearances of the test image and learned image appearance. A new match function is designed to incorporate the new NVFP to deformable models. During the optimization procedure of the segmentation algorithm, the nearest neighbor approach is used to compute the displacement of each contour point to guide the global shape deformation. Experimental results on prostate and bladder MR images show that the proposed method has a better performance than the previous method.

Original languageEnglish
Title of host publication1st Asian Conference on Pattern Recognition, ACPR 2011
Pages377-381
Number of pages5
DOIs
StatePublished - 2011
Externally publishedYes
Event1st Asian Conference on Pattern Recognition, ACPR 2011 - Beijing, China
Duration: 28 Nov 201128 Nov 2011

Publication series

Name1st Asian Conference on Pattern Recognition, ACPR 2011

Conference

Conference1st Asian Conference on Pattern Recognition, ACPR 2011
Country/TerritoryChina
CityBeijing
Period28/11/1128/11/11

Keywords

  • image appearance model
  • match function
  • prostate segmentation

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