METHODS AND SYSTEMS FOR AUTOMATIC LOCATION OF OPTIC STRUCTURES IN AN IMAGE OF AN EYE, AND FOR AUTOMATIC RETINA CUP-TO-DISC RATIO COMPUTATION农业专利-农业学术服务平台

发明人:: CHENG, JUN,LIU, JIANG,XU, YANWU,YIN, FENGSHOU,TAN, NGAN MENG,WONG, WING KEE, DAMON,LEE, BENG HAI,CHENG, XIANGANG,GAO, XINTING,ZHANG, ZHUO,WONG, TIEN YIN,CHENG, CHING-YU,CHEUNG, YIM-LUI, CAROL,MANI, BA

摘要：: A method is proposed for automatically locating the optic disc or the optic cup in an image of the rear of an eye. A portion of the image containing the optic disc or optic cup is divided into sub-regions using a clustering algorithm. Biologically inspired features, and optionally other features, are obtained for each of the sub-regions. An adaptive model uses the features to generate data indicative of whether each sub-region is within or outside the optic disc or optic cup. The result is then smoothed, to form an estimate of the position of the optic disc or optic cup.