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AUTOMATIC IDENTIFICATION AND/OR VERIFICATION OF LINE TEXTURES SUCH AS FINGERPRINTS

阅读:1026发布:2021-02-20

专利汇可以提供AUTOMATIC IDENTIFICATION AND/OR VERIFICATION OF LINE TEXTURES SUCH AS FINGERPRINTS专利检索,专利查询,专利分析的服务。并且The invention relates to methods and to device for the identification and/or verification of line textures such as, for example, fingerprints. The methods are characterized by generating a contour image from a halftone image and by analyzing the contour profile within the contour image. A direction image can be derived from the contour image. The contour image further allows for the determination of local features of the line texture. A feature comparison can be carried out based on the extracted local features.,下面是AUTOMATIC IDENTIFICATION AND/OR VERIFICATION OF LINE TEXTURES SUCH AS FINGERPRINTS专利的具体信息内容。

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