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Glottal space segmentation from motion estimation and gabor filtering

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5 Author(s)
A. Mendez ; University of Deusto, Bilbao, Spain ; E. M. Ismaili Alaoui ; B. Garcia ; E. Ibn-Elhaj
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Obtaining the glottal space segmentation is essential to characterize morphological disorders of vocal folds. In this study, the tested images are been acquired by direct optical inspection of the glottis using an endoscope and most of them are very poor quality. The application of motion estimation is very useful to segment the vocal folds endoscopic videos without user interaction. This approach involves three process steps: 1) Wiener motion estimator - to shift the measurement the next frame regarding to the current frame, and look for similarities between them. The best matching will accurate a shift equal to the displacement vector of the object; 2) Segmentation using motion estimation results and applying Gabor filtering; 3) Experimental results to demonstrate that the proposed method is effective. Our proposal works correctly with 95% of database test videos and it shows a great advance in design, and in the nearby future, a complete method to diagnose vocal folds pathologies.

Published in:

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Date of Conference:

3-6 Sept. 2009