Exemplar-based segmentation of pigmented skin lesions from dermoscopy images

Howard Zhou, James M. Rehg, Mei Chen

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

Abstract

Automated segmentation of pigmented skin lesions (PSLs) from dermoscopy images is an important step for computeraided diagnosis of skin cancer. The segmentation task involves classifying each image pixel as either lesion or skin. It is challenging because lesion and skin can often have similar appearance. We present a novel exemplar-based algorithm for lesion segmentation which leverages the context provided by a global color model to retrieve annotated examples which are most similar to a given query image. Pixel labels are generated through a probabilistic voting rule and smoothed using a dermoscopy-specific spatial prior. We compare our method to three competing techniques using a large dataset of dermoscopy images with hand-segmented ground truth,We show that our exemplar-based approach yields significantly better segmentations and is computationally efficient.

Original languageEnglish (US)
Title of host publication2010 7th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro, ISBI 2010 - Proceedings
Pages225-228
Number of pages4
DOIs
StatePublished - 2010
Externally publishedYes
Event7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Rotterdam, Netherlands
Duration: Apr 14 2010Apr 17 2010

Publication series

Name2010 7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010 - Proceedings

Other

Other7th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2010
Country/TerritoryNetherlands
CityRotterdam
Period4/14/104/17/10

Keywords

  • Dermoscopy image
  • Exemplar-based
  • Pigmented skin lesion
  • Segmentation
  • Spatial prior

ASJC Scopus subject areas

  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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