Brain tumor classification and segmentation using sparse coding and dictionary learning

Saif Dawood Salman Al-Shaikhli*, Michael Ying Yang, Bodo Rosenhahn

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

14 Citations (Scopus)

Abstract

This paper presents a novel fully automatic framework for multi-class brain tumor classification and segmentation using a sparse coding and dictionary learning method. The proposed framework consists of two steps: classification and segmentation. The classification of the brain tumors is based on brain topology and texture. The segmentation is based on voxel values of the image data. Using K-SVD, two types of dictionaries are learned from the training data and their associated ground truth segmentation: feature dictionary and voxel-wise coupled dictionaries. The feature dictionary consists of global image features (topological and texture features). The coupled dictionaries consist of coupled information: gray scale voxel values of the training image data and their associated label voxel values of the ground truth segmentation of the training data. For quantitative evaluation, the proposed framework is evaluated using different metrics. The segmentation results of the brain tumor segmentation (MICCAI-BraTS-2013) database are evaluated using five different metric scores, which are computed using the online evaluation tool provided by the BraTS-2013 challenge organizers. Experimental results demonstrate that the proposed approach achieves an accurate brain tumor classification and segmentation and outperforms the state-of-the-art methods.

Original languageEnglish
Pages (from-to)413-429
Number of pages17
JournalBiomedical engineering = Biomedizinische Technik
Volume61
Issue number4
DOIs
Publication statusPublished - 1 Aug 2016

Keywords

  • Brain tumor
  • Classification
  • Dictionary learning
  • Segmentation
  • Sparse coding
  • Texture
  • Topology
  • NLA

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