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Segmenting Lung Fields in Serial Chest Radiographs Using Both Population and Patient-Specific Shape Statistics

  • Yonghong Shi
  • Feihu Qi
  • Zhong Xue
  • Kyoko Ito
  • Hidenori Matsuo
  • Dinggang Shen
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4190)

Abstract

This paper presents a new deformable model using both population-based and patient-specific shape statistics to segment lung fields from serial chest radiographs. First, a modified scale-invariant feature transform (SIFT) local descriptor is used to characterize the image features in the vicinity of each pixel, so that the deformable model deforms in a way that seeks for the region with similar SIFT local descriptors. Second, the deformable model is constrained by both population-based and patient-specified shape statistics. Initially, population-based shape statistics takes most of the rules when the number of serial images is small; gradually, patient-specific shape statistics takes more rules after a sufficient number of segmentation results on the same patient have been obtained. The proposed deformable model can adapt to the shape variability of different patients, and obtain more robust and accurate segmentation results.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Yonghong Shi
    • 1
  • Feihu Qi
    • 1
  • Zhong Xue
    • 2
  • Kyoko Ito
    • 3
  • Hidenori Matsuo
    • 3
  • Dinggang Shen
    • 2
  1. 1.Department of Computer Science and EngineeringShanghai Jiao Tong UniversityShanghaiChina
  2. 2.Section of Biomedical Image Analysis, Department of RadiologyUniversity of PennsylvaniaPhiladelphiaUSA
  3. 3.Hidaka HospitalTakasaki Gunma-PrefectureJapan

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