因此，在被动式测量时，要密切注意发射源温度以及发射源发射信号大小，以便获得最佳仪器响应函数校正结果。

So, during passive FTIR measurement, the temperature and the emission signal amplitude of the source must be observed carefully in order to get satisfactory instrument response function.

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然后利用二次多项式模型拟合文本行的中心线，并建立径向失真校正的目标函数。

Then, it used second order polynomial to fit the Central Line of text line, and constructed the object function of lens distortion.

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然后利用二次多项式模型拟合文本行的中心线，并建立径向失真校正的目标函数。

Then, it used second order polynomial to fit the Central Line of text line, and constructed the object function of lens distortion.

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