Antialiasing-warped imagery using lookup-table-based methods for adaptive resampling

Details Antialiasing-warped imagery using lookup-table-based methods for adaptive resampling Antialiasing-warped imagery using lookup-table-based methods for adaptive resampling

Dec 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991spie.1567..204w&link_type=abstract

Proc. SPIE Vol. 1567, p. 204-214, Applications of Digital Image Processing XIV, Andrew G. Tescher; Ed.

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In a previous paper, the authors demonstrated how image warping could be implemented using a pair of two-dimensional (2-D) spatial look-up tables. In that paper, the focus was on generating the tables, not on antialiasing the results. In this paper, the authors present a method for generating resampling kernels from the spatial look-up tables for the purpose of reducing aliasing. The method generates resampling kernels based on the reduction in spatial frequency content that must take place in order to produce an antialiased warped result. Since the reduction in spatial frequency required for each output pixel can be unique, the method is adaptive.

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