CAJ | 학술논문

　　针对传统人眼反射光模型单一的缺陷，提出了一种自适应的对不规则形状人眼反射光的检测并去除算法。对含有人眼反射光区域，应用区域生长算法对人眼图像进行分割，并利用垂直边缘检测算子提取虹膜左右轮廓边界，拟合虹膜轮廓，对虹膜所在轮廓区域，采用提出的反射光轮廓初始点检测算法，反射光区域判定算法，对其轮廓的位置进行自动定位并提取，利用虹膜及瞳孔的纹理信息对人眼反射光覆盖区域进行修补。通过对不同人眼图像进行验证，结果表明该方法对检测不同噪声条件下的虹膜反射光具有鲁棒性，并且能够更加快速有效地对虹膜反射光进行去除。
　　침대전통인안반사광모형단일적결함，제출료일충자괄응적대불규칙형상인안반사광적검측병거제산법。대함유인안반사광구역，응용구역생장산법대인안도상진행분할，병이용수직변연검측산자제취홍막좌우륜곽변계，의합홍막륜곽，대홍막소재륜곽구역，채용제출적반사광륜곽초시점검측산법，반사광구역판정산법，대기륜곽적위치진행자동정위병제취，이용홍막급동공적문리신식대인안반사광복개구역진행수보。통과대불동인안도상진행험증，결과표명해방법대검측불동조성조건하적홍막반사광구유로봉성，병차능구경가쾌속유효지대홍막반사광진행거제。
Corneal reflection removal is a critical step for an iris recognition system because it directly affects the gaze detection and tracking. Due to the different luminous environment, the model of the corneal reflection is not a regular circle. So an irregu-lar shape of corneal reflection should be considered to detection and removal. In this paper, it focuses on reflection boundary which involves in iris region and it proposes a new method to locate the corneal reflection based on intensity gradient and tex-ture gradient features. Also, in order to narrow the detection scope, it proposes to extract the iris region via detecting the iris cen-ter which based on color image segmentation, vertical edge operation and curve fitting. The result shows that the technique per-forms well, especially, to detect the salient reflection boundary. The proposed method is robust and applicable on various kinds of eye image with different eye center location and noise properties.