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Proceedings Paper

Anti-aliasing two-pass image rotation
Author(s): Duck Jin Chung; Jose Pineda de Gyvez; Edgar Sanchez-Sinencio
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Paper Abstract

In image rotation, a two-pass algorithm has many advantages over a one-pass algorithm in high speed computation. The reported two-pass algorithm gives a serious performance degradation in high frequency area at large rotation angles (30 degrees to 45 degrees). This paper presents a new two-pass algorithm that overcomes the limitations of previously reported approaches at large rotation angles. The hardware structure for the two-pass algorithm needs only four additional counters. We have also developed a novel three-dimensional Fourier- theoretical basis including the effect of interpolation. A brief comparison of existing techniques and the two-pass algorithm newly suggested is presented. At large rotation angles, the suggested algorithm has almost the same performance as that of the one-pass algorithm and much better performance than that of an existing two-pass algorithm.

Paper Details

Date Published: 13 March 1996
PDF: 10 pages
Proc. SPIE 2666, Image and Video Processing IV, (13 March 1996); doi: 10.1117/12.234754
Show Author Affiliations
Duck Jin Chung, Inha Univ. (South Korea)
Jose Pineda de Gyvez, Texas A&M Univ. (United States)
Edgar Sanchez-Sinencio, Texas A&M Univ. (United States)


Published in SPIE Proceedings Vol. 2666:
Image and Video Processing IV
Robert L. Stevenson; M. Ibrahim Sezan, Editor(s)

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