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13 March 1996 Anti-aliasing two-pass image rotation
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Proceedings Volume 2666, Image and Video Processing IV; (1996) https://doi.org/10.1117/12.234754
Event: Electronic Imaging: Science and Technology, 1996, San Jose, CA, United States
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.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Duck Jin Chung, Jose Pineda de Gyvez, and Edgar Sanchez-Sinencio "Anti-aliasing two-pass image rotation", Proc. SPIE 2666, Image and Video Processing IV, (13 March 1996); https://doi.org/10.1117/12.234754
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