Characteristics of Modulation Transfer Function of PixelCoupling Between Array Fiber Image Bundles and Array CCD

	Characteristics of Modulation Transfer Function of PixelCoupling Between Array Fiber Image Bundles and Array CCD
	He, X.; L. Yuan; C. Jin and X. Zhang
	2017
发表期刊	Guangxue Xuebao/Acta Optica Sinica
卷号	37 期号:5
摘要	For the advancements of imaging fiber bundle fabrication technology with high resolution, traditional high-performance photoelectric imaging instruments become flexible with greatly reduced volume and weight. However, traditional image quality evaluation models are limited by the pixel coupling discrete sampling effect of array fiber image bundles and array CCD. On the basis of the transfer process of grayscale cosine distribution optical signal in array fiber image bundles and array CCD, a mathematical model of coupled modulation transfer function (Coupled-MTF) for coupled discrete sampling system is established. Results show that the coupled-MTF converges to a fixed value when the deviation between an input signal spatial frequency and Nyquist frequency is 1% and the total number of pixels in the array is more than 1000. A small frequency deviation corresponds to a slow convergence velocity of the coupled-MTF oscillation. The oscillation amplitude of coupled-MTF differs in tangential and sagittal directions in a manner related to the corresponding pixel coupling deviation. The coupled-MTF periodically oscillates with the coupling deviation between the array fiber image bundles and the array CCD. One cycle is equivalent to the diameter of fiber cladding. The results show that the coupled-MTF shows different characteristics from the modulation transfer function of classical space invariant imaging system. 2017, Chinese Lasers Press. All right reserved.
收录类别	ei
语种	中文
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/58940
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	He, X.,L. Yuan,C. Jin and X. Zhang. Characteristics of Modulation Transfer Function of PixelCoupling Between Array Fiber Image Bundles and Array CCD[J]. Guangxue Xuebao/Acta Optica Sinica,2017,37(5).
APA	He, X.,L. Yuan,&C. Jin and X. Zhang.(2017).Characteristics of Modulation Transfer Function of PixelCoupling Between Array Fiber Image Bundles and Array CCD.Guangxue Xuebao/Acta Optica Sinica,37(5).
MLA	He, X.,et al."Characteristics of Modulation Transfer Function of PixelCoupling Between Array Fiber Image Bundles and Array CCD".Guangxue Xuebao/Acta Optica Sinica 37.5(2017).

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