Percorrer por autor "Macchiavello, Bruno"
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- Compression of touchless multiview fingerprintsPublication . Francisco, Nelson C.; Zaghetto, Alexandre; Macchiavello, Bruno; Silva, Eduardo A. B. da; Lima-Marques, Mamede; Rodrigues, Nuno M. M.; Faria, SergioRecently, touchless multiview fingerprinting technology has been proposed as an alternative to overcome the intrinsic problems of traditional contact-based systems. Nevertheless, compression of this kind of signal has not been fully evaluated and standardized. This paper investigates the comparative performance of several encoders for this data, namely WSQ, JPEG2000, H.264/AVC and MMP. Experimental results show that WSQ encoder, which is the current compression standard for contact-based fingerprints, is objectively outperformed by all others. In particular, MMP, which achieved the best results, outperforms WSQ by up to 4 dB.