IDentifying cancer regions in vital-stained magnification endoscopy images using adapted color histograms

In-body imaging technologies such as vital-stained magnification endoscopy pose novel image processing challenges to computer-assisted decision systems given their unique visual characteristics such as reduced color spaces and natural textures. In this paper we will show the potential of using adapted color features combined with local binary patterns, a texture descriptor that has exhibited good adaptation to natural images, for classifying gastric regions into three groups: normal, pre-cancer and cancer lesions. Results exhibit 91% accuracy, confirming that specific research for in-body imaging could be the key for future computer assisted decision systems for medicine.

[1]  Dimitris A. Karras,et al.  Computer-aided tumor detection in endoscopic video using color wavelet features , 2003, IEEE Transactions on Information Technology in Biomedicine.

[2]  A. Sousa Analysis of colour and texture features of vital-stained magnification-endoscopy images for computer-assisted diagnosis of precancerous and cancer lesions , 2008 .

[3]  Subhash C. Bagui,et al.  Combining Pattern Classifiers: Methods and Algorithms , 2005, Technometrics.

[4]  M. Coimbra,et al.  Towards more adequate colour histograms for in-body images , 2008, 2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.

[5]  H. Gouveia,et al.  External validation of a classification for methylene blue magnification chromoendoscopy in premalignant gastric lesions. , 2008, Gastrointestinal endoscopy.

[6]  C. Lopes,et al.  Magnification chromoendoscopy for the diagnosis of gastric intestinal metaplasia and dysplasia. , 2003, Gastrointestinal endoscopy.

[7]  Ralf Herbrich,et al.  Learning Kernel Classifiers: Theory and Algorithms , 2001 .

[8]  Miguel Tavares Coimbra,et al.  MPEG-7 Visual Descriptors—Contributions for Automated Feature Extraction in Capsule Endoscopy , 2006, IEEE Transactions on Circuits and Systems for Video Technology.

[9]  Matti Pietikäinen,et al.  A comparative study of texture measures with classification based on featured distributions , 1996, Pattern Recognit..

[10]  Ludmila I. Kuncheva,et al.  Combining Pattern Classifiers: Methods and Algorithms , 2004 .

[11]  Miguel Tavares Coimbra,et al.  Semantic relevance of current image segmentation algorithms , 2009, 2009 10th Workshop on Image Analysis for Multimedia Interactive Services.