In Colombia, just the same as in the whole World, globalization of the market led to a large increase in importating of diverse devices. In case of devices for aesthetic use, importing a large number of different device types without adequate control of products, increases the risk of appearance of adverse events for their users. On the other hand, there are very few studies of adverse events caused by their use, or risk assessment studies.
View Article and Find Full Text PDFAnnu Int Conf IEEE Eng Med Biol Soc
March 2011
The changes in diameter of retinal vessels are an important sign of diseases such as hypertension, arteriosclerosis and diabetes. Obtaining precise measurements of vascular widths is a critical and demanding process in automated retinal image analysis. This paper presents the development of a prototype for measuring the vessel diameters to calculate the arteriovenous ratio (AVR) by using different techniques including Gabor wavelet, gradients, morphological operations and Niblack.
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