Mathieu Razafimahazo

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For pedestrian navigation when a precision of one step is required as for navigation of visually impaired people or if the envisaged mobile appplication needs to position POIs with a high precision, there is no real difference between indoor and outdoor navigation as an IMU-based localization system has to be used. IMU-based localization is not an absolute(More)
45 Since 2007, the widespread use of mobile devices (e.g., phones, tablets) and emergence of a new generation of devices which are equipped with more precise sensors and cameras has placed augmented and virtual-reality technologies within reach. Such applications are very resource-demanding and critically interdependent on the quality of user-location(More)
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(More)
With the continual miniaturisation of sensors and processing nodes, Pedestrian Dead Reckoning (PDR) systems are becoming feasible options for indoor/outdoor tracking. These use inertial and other sensors, often combined with domain-specific knowledge about walking, to track user movements. There is currently a wealth of relevant literature spread across(More)
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