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Fingerprint recognition systems are vulnerable to artificial spoof fingerprint attacks, like molds made of silicone, gelatin or Play-Doh. “Liveness detection”, which is to detect vitality information from the biometric signature itself, has been proposed to defeat these kinds of spoof attacks. The goal for the LivDet 2009 competition is to compare different(More)
Although fingerprint verification systems reached a high degree of accuracy, it has been recently shown that they can be circumvented by “fake fingers”, namely, fingerprint images coming from stamps reproducing an user fingerprint, which is processed as an “alive” one. Several methods have been proposed for facing with this problem, but the issue is far(More)
criminate between live and fake fingerprints by using the images acquired by the sensor ([4] [10]). These softwareDespite its importance, afew works have been proposed based solutions are obviously less intrusive and cheaper for fingerprint vitality detection. In this paper; we prothan the hardware-based ones. So far, such solutions have pose a novelfeature(More)
The automatic vitality detection of a fingerprint has become an important issue in personal verification systems based on this biometric. It has been shown that fake fingerprints made using materials like gelatine or silicon can deceive commonly used sensors. Recently, the extraction of vitality features from fingerprint images has been proposed to address(More)
The vitality detection of fingerprints is currently acknowledged as a serious issue for personal identity verification systems. This problem, raised some years ago, is related to the fact that the 3d shape pattern of a fingerprint can be reproduced using artificial materials. An image quite similar to that of true, alive, fingerprint, is derived if such(More)
The finding of incidentalomas is becoming increasingly frequent during the course of routine diagnostic tests. At the hepatic level, the preclinical diagnosis of primary tumours has enabled a growing number of patients to undergo surgery with reduced operating trauma and greater oncological radicality. The authors report a case of cholangiocarcinoma whose(More)
Mucinous cystadenocarcinoma of the cecal appendix is a very rare malignant neoplasia. The majority of these tumours are discovered during surgery performed for other pathologies or as a chance finding in the histological analysis of surgically removed inflamed appendix. There is no characteristic symptomatology of this neoplasia which requires oncologically(More)
Of all the soft tissue sarcomas, those localised in the retroperitoneum represent a particular challenge to the surgeon. Diagnosis is often late, when the tumour has already reached considerable proportions, creating particular problems for its removal. Liposarcomas are the most common histological form of retroperitoneal tumour. The authors report the case(More)