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专利名称：System And Method For Measuring Clarity
Of Images Used In An Iris RecognitionSystem
发明人：Yingzi Du,Craig S. Belcher申请号：US12673626申请日：20080815
公开号：US20100202668A1公开日：20100812
专利附图：
摘要：An image quality measuring method enables a biometric image to be evaluatedto determine whether the biometric image data are adequate for identification
processing. The method includes converting a biometric image to dimensionless imagedata, filtering the dimensionless image data with a band pass filter, identifying a pluralityof portions in the filtered data as containing identification features, each portion in theplurality having an information measurement that indicates feature content greater thanportions in the filtered data that are excluded from the plurality, and measuring clarityfor the biometric image from the identified plurality of portions in the filtered data.
申请人：Yingzi Du,Craig S. Belcher
地址：Indianapolis IN US,Indianapolis IN US
国籍：US,US
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