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- W2750165720 abstract "Frequently an image may be blurred by a point spread function whose details are not known exactly. In such a case it is necessary to estimate the point spread function before deconvolving the blurred image. This paper presents a new technique for estimating a zero phase blurring function when its optical transfer function is smooth. The estimate is obtained by smoothing the spectral magnitude of the image and comparing it to an average magnitude that is also smoothed. The average magnitude is obtained by averaging over an ensemble of similar images. The estimation can be extended to degradations such as a defocused lens by thresholding the estimated magnitude to obtain zero crossings and adjusting the phase accordingly. In particular, this technique can be applied to a circularly symmetric Gaussian or a defocused lens with a circular aperture." @default.
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- W2750165720 date "1979-12-28" @default.
- W2750165720 modified "2023-09-23" @default.
- W2750165720 title "<title>New Technique For Blind Deconvolution</title>" @default.
- W2750165720 doi "https://doi.org/10.1117/12.958233" @default.
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