Results: Water iodine content calculated by linear regression equation, multiplied by coefficient of rectification, equals that calculated by index regression equation.

结果利用线性回归方程计算出的水碘含量，通过与校正系数相乘等于指数回归方程计算出的水碘含量。

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This paper proposes an algorithm of iris automated identification and a method for rectification of geometric distortion of iris image. The matching result is measured by the relative coefficient.

提出了虹膜自动身份识别的算法及虹膜图像几何畸变的校正方法，最后用相关系数来测度图像的匹配结果。

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