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Measurement of the point-spread function of a noisy imaging system
建立日期:2018/02/21
作者:
Christopher D. Claxton等
出處:
2007-05-17 OpticsInfoBase
內容:
The averaged point-spread function (PSF) estimation of an image acquisition system is important for many computer vision applications, including edge detection and depth from defocus. The paper compares several mathematical models of the PSF and presents an improved measurement technique that enables subpixel estimation of 2D functions. New methods for noise suppression and uneven illumination modeling were incorporated. The PSF was computed from an ensemble of edge-spread function measurements. The generalized Gaussian was shown to be an 8 times better fit to the estimated PSF than the Gaussian and a 14 times better fit than the pillbox model.
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Measurement of the point-spread function of a nois
下載次數:
268
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