PROBLEM TO BE SOLVED: To favorably extract an ocular-fundus blood vessel area in an ocular fundus image where a blood vessel with strong blood-column reflection is present.SOLUTION: An ocular fundus image analysis apparatus includes: binarized blood vessel extraction means for generating an image including a binarized blood vessel area information obtained by binarization processing of the ocular fundus image used as an input image blood vessel thinning means for acquiring thinned blood vessel area information by performing thinning processing on the binarized blood vessel area and blood vessel area extraction means for extracting a blood vessel area obtained by reducing the blood column reflection area in the blood vessel area of the ocular fundus image on the basis of the thinned blood vessel area information.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2016,JPO&INPIT【課題】血柱反射が強い血管が存在する眼底画像において眼底血管領域を良好に抽出可能とする。【解決手段】眼底画像の解析装置において、眼底画像を入力画像としてこれに二値化処理を施して得られる二値化血管領域情報を含む画像を生成する二値化血管抽出手段と、二値化血管領域に細線化処理を施して細線化血管領域情報を求める血管細線化手段と、細線化血管領域情報に基づいて眼底画像の血管領域における血柱反射領域を減少させて得た血管領域を抽出する血管領域抽出手段と、を配する。【選択図】図1
