title: Classification of breast tissue in mammograms using efficient coding.
abstract: BACKGROUND
  Female breast cancer is the major cause of death by cancer in western countries. Efforts in Computer Vision have been made in order to improve the diagnostic accuracy by radiologists. Some methods of lesion diagnosis in mammogram images were developed based in the technique of principal component analysis which has been used in efficient coding of signals and 2D Gabor wavelets used for computer vision applications and modeling biological vision.
  
  
  METHODS
  In this work, we present a methodology that uses efficient coding along with linear discriminant analysis to distinguish between mass and non-mass from 5090 region of interest from mammograms.
  
  
  RESULTS
  The results show that the best rates of success reached with Gabor wavelets and principal component analysis were 85.28% and 87.28%, respectively. In comparison, the model of efficient coding presented here reached up to 90.07%.
  
  
  CONCLUSIONS
  Altogether, the results presented demonstrate that independent component analysis performed successfully the efficient coding in order to discriminate mass from non-mass tissues. In addition, we have observed that LDA with ICA bases showed high predictive performance for some datasets and thus provide significant support for a more detailed clinical investigation.
authors.affiliation: Laboratory of Biological Information Processing, Department of Electrical Engineering, Federal University of Maranhão - UFMA, São Luís, MA, Brazil. danieldc82@gmail.com
authors.forename: Daniel D
authors.initials: DD
authors.lastname: Costa
authors.forename: Lúcio F
authors.initials: LF
authors.lastname: Campos
authors.forename: Allan K
authors.initials: AK
authors.lastname: Barros
mesh_terms: D001940:Breast / Q000473:pathology; D001943:Breast Neoplasms / Q000145:classification* / Q000000981:diagnostic imaging* / Q000473:pathology*; D003198:Computer Simulation; D016002:Discriminant Analysis; D055088:Early Detection of Cancer; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008327:Mammography / Q000295:instrumentation / Q000379:methods*; D008954:Models, Biological; D025341:Principal Component Analysis; D012680:Sensitivity and Specificity