9 July 1976 Image Processing By Smoothing Spline Functions
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Abstract
Spline functions, because of their highly desirable interpolating and approximating characteristics, are an interesting alternative to the conventional pulse approximation method in digital image modeling. For uniformly spaced knots, a class of spline functions called B-splines is used as a basis in a linear imaging system. A controllable smoothing criteria based on the local statistics and minimization of the second derivative is defined, and the corresponding filter is obtained for restoration of noisy blurred images.
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M. J. Peyrovian, M. J. Peyrovian, A. A. Sawchuk, A. A. Sawchuk, } "Image Processing By Smoothing Spline Functions", Proc. SPIE 0074, Image Processing, (9 July 1976); doi: 10.1117/12.954694; https://doi.org/10.1117/12.954694
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