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Medical images segmentation using Gabor filters applied to echocardiographic images

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3 Author(s)
Bosnjak, A. ; Centro de Procesamiento de Imagenes, Caraboro Univ., Valencia, Venezuela ; Montilla, G. ; Torrealba, V.

Visualisation of medical images, and the subsequent analysis by a specialised physician, always conveys a degree of uncertainty when identifying an illness or condition, as in the case of echocardiographic images. Texture segmentation involves the identification of uniform regions within a given image. The Multichannel Filtering theory is based on the following hypothesis. The human visual system in its early stages decomposes the retina into a large set of filtered images, where each one contains the intensity variations in a narrow frequency range at a given orientation. This work presents a texture segmentation algorithm based on the Multichannel Filtering theory, applied on echocardiographic images in order to detect a thrombus, each channel has been obtained using a Gabor filter uniformly distributed along all of the space-frequency domain. Using this procedure on test images and echocardiographic images, the authors obtained good results for segmentation

Published in:

Computers in Cardiology 1998

Date of Conference:

13-16 Sep 1998