Detection of Shaded Areas Boundary in Intravascular Ultrasound Images Using Active Contour
Subject Areas : electrical and computer engineeringM. Basij 1 * , M. Yazdchi 2 , P. Moallem 3 , A. Taki 4
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Keywords: Otsu thresholding intravascular ultrasound (IVUS) imaging shadow detection active contours,
Abstract :
Intra vascular imaging is used for extracting more accurate information about the size and characteristics of plaques than coronary angiography. Sometimes shadows appear behind the calcification plaques that it makes some problem to process these images automatically. This paper describes a new approach for shadows region and border detection in Intra Vascular Ultrasound images. In the proposed algorithm, Otsu thresholding is utilized for identification of shadows location and the Active contours without edge is used for shadows border detection. According to experiments conducted on 30 samples, this proposed algorithm can able to detect shadow regions correctly with sensitivity of 86%.
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