Multiple cameras are needed to completely cover an environment for monitoring activity. To track people successfully in multiple perspective imagery, one needs to establish correspondence between objects captured in multiple cameras. We present a system for tracking people in multiple uncalibrated cameras. The system is able to discover spatial relationships between the camera field of views an...

In this paper, we address the issue of tracking moving objects in an environment covered by multiple uncalibrated cameras with overlapping fields of view, typical of most surveillance setups. In such a scenario, it is essential to establish correspondence between tracks of the same object, seen in different cameras, to recover complete information about the object. We call this the problem of c...

The difficulties people frequently have navigating in virtual environments (VEs) are well known. Usually these difficulties are quantified in terms of performance (e.g., time taken or number of errors made in following a path), with these data used to compare navigation in VEs to equivalent real-world settings. However, an important cause of any performance differences is changes in people’s na...

Multiple cameras are needed to cover large environments for monitoring activity. To track people successfully in multiple perspective imagery, one needs to establish correspondence between objects captured in multiple cameras. We present a system for tracking people in multiple uncalibrated cameras. The system is able to discover spatial relationships between the camera fields of view and use t...

MacMahon (1966), in a comprehensive review of the epidemiology of Hodgkin's disease, provided evidence for the hypothesis that Hodgkin's disease may consist of several separate entities. Cole, MacMahon, and Aisenberg (1968) supported this hypothesis by analysis of regional and age variation in mortality within the United States. Smithers (1970) has reviewed the epidemiological and clinical evid...

We propose a local orientation and navigation framework based on visual features that provide location recognition, context augmentation, and viewer localization information to a human user. Mosaics are used to map local areas to ease user navigation through streets and hallways, by providing a wider field of view (FOV) and the inclusion of more decisive features. Within the mosaics, we extract...

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it is said that the theory of active intellect is among the most ambiguous and controversial topics of aristotle’s philosophy. this ambiguity is generally regarded as being resulted from the brevity and vagueness of aristotle’s speech in his on the soul. however; is the ambiguity of aristotle’s speech to such an extent that the active intellect attributed to him can be regarded as separate from...