Borovitsky V., Fesenko V., Molodyk A. Performance evaluation of infrared imaging systems
Wednesday, 03 August 2011 19:33
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The paper presents an approach for performance evaluation and parametric optimization of imaging system design. This approach is based on calculation Borovytsky V., Chorna V. Intensity distribution near focal point of high aperture optical system formed by partly polarized light
Wednesday, 03 August 2011 19:53
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The paper presents the mathematical technique for calculation of three dimensional intensity distribution near a focal point of a high aperture optical Borovytsky V., Fesenko A. Diffraction depth of focus in optical microscope
Wednesday, 03 August 2011 19:56
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The paper presents the mathematical technique for calculation of the diffraction depth of focus of an optical system of a widefield microscope. The proposed technique applies the Rayleigh criterion based on evaluation of the wave aberration appeared due to defocus in a high aperture optical system. The maximal value of a linear approximation of the defocus wave aberration is used to define the depth of focus. It is proven that in optical systems with numerical aperture higher than 0.5 have the diffraction depth of focus 25  40 % smaller than the widely known formula defines. This fact is important for implementation of autofocus and digital focus extension algorithms. The nonsophisticated formula for calculation of the depth of focus is proposed. The results of experimental measurements of the depth of focus are presented and discussed. Borovytsky V., Fesenko V. Imaging system performance evaluation: NETD, leastsquare error, or correlation
Wednesday, 03 August 2011 19:48
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There are several techniques for performance evaluation of an imaging system (IS). The first is the classical one: performance is considered as a Borovytsky V., Fesenko V. Nonuniformity correction in infrared imaging systems
Wednesday, 03 August 2011 19:45
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The paper represents the approach for residual non uniformity evaluation after twopoints linear nonuniformity correction. The approach takes into 



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