.A new method to evaluate imaging quality of CCD cameras[J].Optoelectronics Letters,2005,1(2):148-150 |
A new method to evaluate imaging quality of CCD cameras |
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Abstract: |
In order to evaluate the imaging quality of CCD cameras fully and rapidly, the minimum resolvable contrast (MRC) is presented
in this paper and the system of measuring MRC is constructed as well, in which two integrating spheres are proposed to illuminate
two sides of the garget respectively. The variable contrast can be obtained by regulating the luminance of integrating spheres.
Experimental results indicate that the error of measuring luminance is within ±0.3 cd/m2, MRC rises with the increase of the spatial frequency. The experimental results show that the method proposed is an effective
approach to evaluate the imaging quality of CCD cameras.
Supported by Science and Technology Research Project of Education Department of Heilongjiang Province (10051065) |
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