Naslov
Adaptive 2-D Wavelet Transform Based on the Lifting Scheme with Preserved Vanishing Moments

Autori
Vrankić, Miroslav ; Seršić, Damir ; Sučić, Viktor

Izvornik
Ieee transactions on image processing (1057-7149) 19 (2010), 8; 1987-2004

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
wavelets; second generation wavelets; adaptive lifting scheme; quincunx sampling; interpolating filters; intersection of confidence intervals; image denoising

Sažetak
In this paper, we propose novel adaptive wavelet filter bank structures based on the lifting scheme. The filter banks are nonseparable, based on quincunx sampling, with their properties being pixel-wise adapted according to the local image features. Despite being adaptive, the filter banks retain a desirable number of primal and dual vanishing moments. The adaptation is introduced in the predict stage of the filter bank with an adaptation region chosen independently for each pixel, based on the intersection of confidence intervals (ICI) rule. The image denoising results are presented for both synthetic and real-world images. It is shown that the obtained wavelet decompositions perform well, especially for synthetic images that contain periodic patterns, for which the proposed method outperforms the state of the art in image denoising.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

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