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The research of the accurate measure of static transfer function for the TDI CCD camera

机译：TDI CCD相机静态传递函数的精确度量研究

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摘要

In the test course of static transfer function of TDI CCD camera, because of the influence that gets environmental and artificial etc. factor, the value of static transfer function measured at any time is between unceasing fluctuation, so, make accuracy reduce. To solve this problem, a kind of accurate measurement technique of static transfer function is put forward. First, before carrying out the measure of static quiet of transfer function, the best test point of transfer function of the TDI CCD camera must be determined, it is parallel to guarantee the rectangle target surface of parallel optical pipe and camera focal plane maintenance parallel, and again guarantee target strip in rectangle target and TDI CCD in camera focal plane maintenance vertical. TDI CCD catches rectangle target image, per 1000 lines of target mark image as a measures sample of static transfer function, exclude because of atmosphere tremble twisted, vague rectangle target mark image, retain 500 distinct and steady target mark image as measure sample set. Then, calculate the static transfer function of each measure sample respectively, take the average of all static quiet transfer function in measure sample set as the static transfer function of camera. Finally, the measure of the static transfer function for TDI CCD camera makes error analysis. Experimental results indicate that the value of the static transfer function of TDI CCD camera measured with this kind of method is 0.2923, with before measurement technique comparison, the value of static transfer function has raised 0.02 , makes the accuracy of the measure of static transfer function have gotten raising.
机译：在TDI CCD相机静态传递函数的测试过程中，由于受到环境和人为因素的影响等因素，随时测量的静态传递函数的值在不断波动之间，因此，使精度降低。针对这一问题，提出了一种精确的静态传递函数测量技术。首先，在进行传递函数静态静噪的测量之前，必须确定TDI CCD相机的传递函数的最佳测试点，该点必须平行，以保证平行光管的矩形目标表面与相机焦平面保持平行，并再次确保矩形目标中的目标条和相机焦平面中的TDI CCD保持垂直。 TDI CCD捕获矩形目标图像，每1000行目标标记图像作为静态传递函数的度量样本，排除由于大气震荡扭曲，模糊的矩形目标标记图像，保留500个清晰稳定的目标标记图像作为度量样本集。然后，分别计算每个测量样本的静态传递函数，将测量样本集中所有静态静默传递函数的平均值作为摄像机的静态传递函数。最后，针对TDI CCD相机的静态传递函数的度量进行误差分析。实验结果表明，用这种方法测得的TDI CCD相机的静态传递函数值为0.2923，与测量技术比较之前，静态传递函数的值提高了0.02，使得静态传递函数的测量精度较高。已经提高了。

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  • 来源
    《Optoelectronic sensing and imaging》|2011年|p.83320Z.1-83320Z.8|共8页
  • 会议地点 Wuhan(CN);Wuhan(CN);Wuhan(CN)
  • 作者

    LI Guo-ning; WANG Wen-hua; HAN Shuang-li; JIN Long-xu; LIU Yan-Yan;

  • 作者单位

    Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;

    Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;

    Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;

    Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;

    School of Electronic and Information Engineering, Changchun University of Science and Technology, Changchun 130022, China;

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  • 正文语种 eng
  • 中图分类 光电子技术的应用;
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