Resolution Enhancement of Imaging Small-Scale Portions in A Compactly Supported Function
Journal of the Optical Society of America A, Optics, image science, and vision/Journal of the Optical Society of America A, Online(2010)
摘要
The ambiguity involved in reconstructing an image from limited Fourier data is removed using a new technique that incorporates prior knowledge of the location of regions containing small-scale features of interest. The prior discrete Fourier transform (PDFT) method for image reconstruction incorporates prior knowledge of the support, and perhaps general shape, of the object function being reconstructed through the use of a weight function. The new approach extends the PDFT by allowing different weight functions to modulate the different spatial frequency components of the reconstructed image. The effectiveness of the new method is tested on one- and two-dimensional simulations.
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