About modulation transfer function of machine vision system based on CMOS and CCD image sensors

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In the process of designing a machine vision system, a critical step is selecting an image sensor and optics that satisfy required parameters of resolution. The resolution of the image sensor is determined by modulation transfer function (MTF). In this paper a method for the theoretical estimation of MTF based on topologic parameters of the image sensor and parameters of lenses is proposed. The purpose of this work is development a method that will be handy instrument for the resolution calculation of the imaging system on the initial stage of the designing process of the machine vision. In this paper dependency of MTF for different parameters of image sensor and lenses were presented. This method can be used for calculation resolution of imaging system in object’s plain domain. References 7, figures 3, tables1.