Carla Simonetti

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In this paper we present a content fragile watermarking based on a computer generated hologram coding technique. Content fragile watermarking techniques aim to prevent tampering and fraudulent use of modified images. A content fragile watermark monitors the integrity of the content of the image but not its numerical representation. Therefore, the watermark(More)
Several studies suggest that, on a large scale, relief conditions influence the Atlantic Forest cover. The aim of this work was to explore these relationships on a local scale, in Caucaia do Alto, on the Ibiúna Plateau. Within an area of about 78 km(2), the distribution of forest cover, divided into two successional stages, was associated with relief(More)
Frequency and dangerousness of falls in elderly people are a public health problem because of its prevalence and its consequences. Because of its high frequency a program designed to avoid the risk of fall and to restore the balance is of importance. Nowadays in Belgium, only the ones belonging to the F-pathology list are reimbursed for the walking(More)
BACKGROUND Up to 65% of elderly patients are protein-energy undernourished at admission or acquire nutritional deficits while hospitalised. OBJECTIVES The aims of this project were: 1) to assess the quality of care concerning nutrition among geriatric units; 2) to assess the impact of implementive nutritional interventions on nutritional status and on the(More)
Biometry is a wide-used and pervasive approach to verify people identity, based on the presence of some unique characteristics, having precise properties (i.e. biometric characteristics). On the other hand, optical detection of random features is widely used for recognizing object authenticity. In this paper we explain how these two approaches are similar;(More)