The Illumination Spectrum Parameters Optimization Select For Image Measurement Based on No-reference Image Quality Assessment

摘要

In order to enhance the visual imaging system for measuring image quality, the paper analyzed the imaging devices and lighting of the light source spectral imaging system, as well as matching characteristics of the aberration characteristics, studied the influence on imaging quality of the spectrum lighting system;the introduction of no reference to the image of evaluation methods from CSNR and Tenengrad function for the analysis of the ability of image contrast and clarity under different spectrum lighting is made is based on this condition;In what follows, obtaining spectrum optimization program from imaging , measurement and lighting system by evaluation function;the paper concludes with a spectrum lighting comparison experiment of the monochromatic and polychromatic light, quality evaluation of digital image contrast and definition of indicators from spectrum of different conditions was made by applying for raised of evaluation function;It' s discovered that the image quality of contrast and definition of indicators over polychromatic light by using spectrum lighting .which near to peak wavelength of CCD spectral response function in the experiment. So it's provided an optimization guide the direction of spectral characteristics from the choice of lighting source system in a designing system of vision.