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A multiresolution model for image interpolation with adaptive filtering

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3 Author(s)
F. A. C. M. Cardoso ; Dept. de Comunicacoes, Univ. Estadual de Campinas, Sao Paulo, Brazil ; D. S. Arantes ; J. M. Romano

This paper proposes an image interpolation model based on a multiresolution scheme. The method uses two different known image resolutions to establish a mapping between them. The mapping is then used to extrapolate the unknown resolution to produce an expanded image with increased definition and with a mean square reconstruction error lower than for the conventional methods. In other words, details in a high resolution image are implicitly predicted based only on its low-frequency resolutions. A high subjective quality is obtained due to the similar nature of the mappings, which are constructed by means of an adaptive bidimensional FIR filter

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Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on  (Volume:6 )

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