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When comparing experimental data obtained from different subjects, a standard approach is to display results on an atlas, as a common anatomical substrate. Through time, different methodologies for atlas constructions have been developed. A lot of works on this topic discuss the selection of the “best” atlas, using different criteria. In this article we discuss several methods for atlas construction...
Diabetic retinopathy (DR) is a visual complication of diabetes, which has become one of the leading causes of preventable blindness in the world. Exudate detection is an important problem in automatic screening systems for detection of diabetic retinopathy using color fundus photographs. In this paper, we present a method for detection of exudates in color fundus photographs, which combines several...
Straight line fitting is an important problem in computer and robot vision. We propose a novel method for least squares line fitting that uses both the point coordinates and the local gradient orientation to fit an optimal line by minimizing the proposed algebraic distance. The proposed inclusion of gradient orientation offers several advantages: (a) one data point is sufficient for the line fit,...
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