FUNDUS IMAGE PROCESSING DEVICE AND FUNDUS IMAGE PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a fundus image processing device and fundus image processing program capable of more accurately calculating an artery-vein diameter ratio.SOLUTION: A PC calculates an artery-vein diameter ratio at a fundus of a subject eye by processing a fundus image of the subject eye. In other words, the PC operates as a fundus image processing device for calculating the artery-vein diameter ratio. A CPU in the PC identifies a papilla included in the fundus image and a blood vessel included in the fundus image. The CPU calculates an upward diameter ratio which is a ratio between blood vessels positioned in the upper region from the height of the papilla of identified blood vessels. The CPU calculates a downward diameter ratio which is a ratio between blood vessels positioned in the lower region from the height of the papilla of the identified blood vessels (S77).