System, method and device for automatic noninvasive screening for diabetes and pre-diabetes

摘要

A system for an automatic noninvasive screening for diabetes and pre-diabetes using a device to take at least one image of a patient's eye, executing non-transitory instructions executable on a processor for analyzing the image and displaying an indication if the patient has diabetes.

主权项

1. A method for an automatic noninvasive screening for diabetes and pre-diabetes using at least one image, the method comprising the steps of:
a) capturing a color image of a patient's eye; b) storing the image in a storage for processing; c) converting the color image to a grayscale image; d) applying a box blur filter to the grayscale image; e) applying a noise reduction filter the box blur image; f) normalizing the noise reduced image; g) increasing the range in the normalized, noise reduced image between white, identifying conjunctiva, and black, identifying blood vessel, pixels on the normalized image; h) applying a Gaussian Matched filter to the range increased image; i) scoring each pixel of the Gaussian Matched image on a likelihood of being in a blood vessel; j) calculating, for each of the scored pixels, an optimal orthogonal angle; k) rank segmenting each of the optimal orthogonal angles; l) identifying blood vessel candidates from the segmented rankings using a threshold; m) calculating a midpoint for each segmented ranking; n) calculating midpoints for each segmented rank; o) calculating blood vessel diameters associated with each midpoint; p) chaining each identified midpoint to the other identified midpoints; q) calculating a line that connects and traverses the blood vessel through the chained midpoints creating a line; and r) performing feature analysis on the blood vessel using statistics and the blood vessel chains to identify and measure features in the micro circulation to identified diabetic conditions.