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APPARATUS AND METHOD FOR ACQUIRING IMAGE FOR IRIS RECOGNITION USING DISTANCE OF FACIAL FEATURE

机译:利用面部特征距离获取虹膜识别图像的装置和方法

摘要

The present invention relates to an apparatus and method for acquiring an image for iris recognition using a distance of a facial feature, the apparatus comprising: a buffer for photographing one or more facial images of a subject being photographed so as to acquire an image for iris recognition and storing the photographed facial images; a facial feature distance calculating unit for calculating a distance of a facial feature from the facial images stored in the buffer; an actual distance estimating unit for estimating an actual distance between the subject being photographed and a camera from the distance of the face feature calculated by the facial feature distance calculating unit, and confirming, from of the estimated distance, that the subject being photographed exists in an iris photographing space; and an iris image acquiring unit for acquiring an eye image from the facial images of the subject being photographed that has been confirmed as existing in the iris photographing space by the actual distance estimating unit, and measuring the quality of the acquired eye image so as to acquire an image for iris recognition, which satisfies a reference level of quality.
机译:本发明涉及一种用于使用面部特征的距离来获取用于虹膜识别的图像的设备和方法,该设备包括:缓冲器,用于拍摄被摄对象的一个​​或多个面部图像以获取用于虹膜的图像。识别并存储拍摄的面部图像;面部特征距离计算单元,用于从存储在缓冲器中的面部图像计算面部特征的距离;实际距离估计单元,用于根据由面部特征距离计算单元计算出的面部特征的距离来估计被拍摄对象与照相机之间的实际距离,并从估计距离中确认被拍摄对象存在于其中。虹膜摄影空间;虹膜图像获取单元,用于从通过实际距离估计单元确认为存在于虹膜摄影空间中的被拍摄对象的面部图像中获取眼睛图像,并测量所获取的眼睛图像的质量,从而获取用于虹膜识别的图像,该图像满足参考质量水平。

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