Recent years have witnessed a growing interest in the fields of video surveillance and mobile object tracking. This paper proposes a mobile object tracking algorithm. First, several parameters such as object window, object area, and expansion-contraction (E-C) parameter are defined. Then, a modified E-C algorithm for multiple-object tracking is presented. The proposed algorithm tracks moving ob...

In this article, we propose the design of sensory motor level as part of a three-layered agent architecture inspired from the Multilevel Process Theory of Emotion (Leventhal 1979, 1980; Leventhal and Scherer, 1987). Our project aims at modeling emotions on an autonomous embodied agent, Petra, a more robust robot than our previous prototype Cherry. Our robot has been equipped with sonar and visi...

In this paper, we introduce our approach as well as examples of realizations for situated interaction in the context of future work environments. These environments will be populated with a range of smart artefacts. The artefacts and their mutual interaction are designed to facilitate awareness and notification as well as informal communication. They constitute examples of our approach to devel...

Three experiments investigated the acquisition and retention of structural and object landmarks in virtual indoor environments. The experiments investigated the rate of acquisition and memory retention for hallway structure (structural landmarks) and pictures (object landmarks). The experiments investigated the rate of acquisition, the role of information content, and memory retention of this i...

ion Machine / Erotic – The Voyeur of Light (1994) was a temporary site specific installation in a hotel room in Sydney, Australia. A text was generated by randomly drawing from a pre-authored database of textual fragments. The security eyepiece was inverted to let people view into the room from the hallway. Expecting to be a voyeur, the participant unpredictably saw a text presented via compute...

What properties determine visually perceived space? We discovered that the perceived relative distances of familiar objects in natural settings depended in unexpected ways onthe surrounding visual field. Observers bisected egocentric distances in a lobby, in a hallway, and on an open lawn. Three key findings were the following: (1) Perceived midpoints were too far from the observer, which is th...

Last year, Tyrone Sinkler, 16, and Ian Moore, his 17-year-old buddy, were gunned down in the hallway of their New York City school by a disgruntled classmate. For many EMTs and paramedics, this tragedy would have just added to the helplessness we feel when we go on calls in which children kill children. But for some New York City EMS (NYC*EMS) personnel, this incidence added fuel to their fire ...

We describe a spatio-temporal feature filtering approach that is appropriate for detecting video events in public scenes containing from many to few people. This non-discrete tracking – or pattern flow analysis – is distinguished by the fact that the usual video processing step of object segmentation is omitted; instead motion features alone are used to detect, follow, and separate activity. Mo...

To the Editor: Winnipeg newspapers have recently picked up the battlecry that the current emergency care system does not work. It is now unacceptable and dangerous that patients wait hours to be seen and treated. In response, the Manitoba government has decided to do a 1-week audit of selected emergency charts to see what the problem is. It seems they have forgotten to talk to the frontline wor...

Soon, in many service robotic applications, a realtime localization and 3D-mapping capability will be necessary for autonomous navigation. Toward a light and practical SLAM algorithm for indoor scenarios, we propose a fast SLAM algorithm which benefits from sensor geometry for feature extraction and enhance the mapping process using dominant orthogonality in the engineered structures of man-mad...