Stacked Predictive Sparse Decomposition for Classification of Histology Sections

Hang Chang, Yin Zhou, Alexander D Borowsky, Kenneth Barner, Paul Spellman, Bahram Parvin

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

Image-based classification of histology sections, in terms of distinct components (e.g., tumor, stroma, normal), provides a series of indices for histology composition (e.g., the percentage of each distinct components in histology sections), and enables the study of nuclear properties within each component. Furthermore, the study of these indices, constructed from each whole slide image in a large cohort, has the potential to provide predictive models of clinical outcome. For example, correlations can be established between the constructed indices and the patients’ survival information at cohort level, which is a fundamental step towards personalized medicine. However, performance of the existing techniques is hindered as a result of large technical variations (e.g., variations of color/textures in tissue images due to non-standard experimental protocols) and biological heterogeneities (e.g., cell type, cell state) that are always present in a large cohort. We propose a system that automatically learns a series of dictionary elements for representing the underlying spatial distribution using stacked predictive sparse decomposition. The learned representation is then fed into the spatial pyramid matching framework with a linear support vector machine classifier. The system has been evaluated for classification of distinct histological components for two cohorts of tumor types. Throughput has been increased by using of graphical processing unit (GPU), and evaluation indicates a superior performance results, compared with previous research.

Original languageEnglish (US)
Pages (from-to)3-18
Number of pages16
JournalInternational Journal of Computer Vision
Volume113
Issue number1
DOIs
StatePublished - May 1 2015

Keywords

  • Classification
  • Sparse coding
  • Tissue histology
  • Unsupervised feature learning

ASJC Scopus subject areas

  • Software
  • Artificial Intelligence
  • Computer Vision and Pattern Recognition

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