Boundary Detection in Medical Images Using Edge Following Algorithm
Journal Title: International Journal of Engineering Sciences & Research Technology - Year 30, Vol 2, Issue 4
Abstract
This paper introduces a new edge following technique for boundary detection in noisy images. Utilization of the proposed technique is exhibited via its application to various types of medical images. Our proposed technique can detect the boundaries of objects in noisy images using the information from the intensity gradient via the vector image model and the texture gradient via the edge map. The performance and robustness of the technique have been tested to segment objects in synthetic noisy images and medical images including prostates in ultrasound images, left ventricles in cardiac magnetic resonance (MR) images, aortas in cardiovascular MR images, and knee joints in computerized tomography images. We compare the proposed segmentation technique with the active contour models (ACM), geodesic active contourmodels, active contours without edges, gradient vector flow snake models, and ACMs based on vector field convolution, by using the skilled doctors’ opinions as the ground truths. The results show that our technique performs very well and yields better performance than the classical contour models. The proposed method is robust and applicable on various kinds of noisy images without prior knowledge of noise properties.
Authors and Affiliations
Vinothkumar. D
Keywords
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