Topology preserving warping of binary images: application to atlas-based skull segmentation

Med Image Comput Comput Assist Interv. 2008;11(Pt 1):211-8. doi: 10.1007/978-3-540-85988-8_26.

Abstract

Lots of works have been recently carried out in the field of non-rigid registration to ensure the estimation of one-to-one mappings. However, warping a binary image with such transformations may alter its discrete topological properties if common resampling strategies are considered. This paper proposes an original method for warping a binary image according to some continuous and bijective mapping, while preserving its discrete topological properties. Results obtained in the context of atlas-based segmentation highlight the interest of the approach. Indeed, the method has been successfully applied to the segmentation of skull structures from a database of 15 CT-scans, providing both geometrically and topologically satisfactory results.

MeSH terms

  • Algorithms
  • Artificial Intelligence
  • Pattern Recognition, Automated / methods*
  • Radiographic Image Enhancement / methods*
  • Radiographic Image Interpretation, Computer-Assisted / methods*
  • Sensitivity and Specificity
  • Signal Processing, Computer-Assisted*
  • Skull / diagnostic imaging*
  • Subtraction Technique*
  • Tomography, X-Ray Computed / methods*