In this paper, a personal assistant and navigator system for visually impaired people will be described. The showcase presented intends to demonstrate how partially sighted people could be aided by the technology in performing an ordinary activity, like going to a mall and moving inside it to find a specific product. We propose an Android application that integrates Pedestrian Dead Reckoning and Computer Vision algorithms, using an off-the-shelf Smartphone connected to a Smartwatch. The detection, recognition and pose estimation of specific objects or features in the scene derive an estimate of user location with sub-meter accuracy when combined with a hardware-sensor pedometer. The proposed prototype interfaces with a user by means of Augmented Reality, exploring a variety of sensorial modalities other than just visual overlay, namely audio and haptic modalities, to create a seamless immersive user experience. The interface and interaction of the preliminary platform have been studied through specific evaluation methods. The feedback gathered will be taken into consideration to further improve the proposed system.

Co.Ri.M.Me. -Stradale Primosole 95121 -Catania -Italy 7'0 improve 'I'V image quality without changing tlie current transmission standards. advanced soft-decision frizzy logic tecliniques have been applied to rcniove noise affecting pictures and to avoid iiiterlaced-scanrclatcd artiPacts, thus leading to the delinition of a iiew Fuzzy Noise ilcducer and Scanning Rate Converter system. 'the increase in tlie display definition and dimensioiis emphasizes niore and more the image quality insufficiencies of tlie present TV receivers, pushing toivards High Definition Television (HUTV). Improved Quality 'Ielevision (IQTV) can be considered as the intermediate step between the conventional quality television and the advanced HDTV, since it allows IO display better video iiiiages on (16:9) monitors witliout changing the prcsent 7'V standards, on the contraiy of what I-IDTV requires.Lii particular, the main causes of the current 73' image quality degradation are noise and interlaced-scan-related artifacts, such as line aiid large-area flicker, static raster visibility, and line crawl. (lonsequcntly a liigli-pel.formance Noise Reducer (NR), wliicli reiiioves both the impulsive and gaussian noise. and a Scanning ]

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