Pekka Nisula

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In this paper we address the problem of dynamic trajectory segmentation for human-computer interfaces. We are concerned with locally linear trajectories. Trajectory points are obtained from a hand feature detector. First, a tensor voting technique is used to filter the trajectory and to construct a smooth trajectory from the sparse collection of detected(More)
In this paper we present our work on exploring the possibilities of using 3D projection, instead of 2D displays, for a media installation set-up, which we aim to use for exhibition and teaching purposes. We compare two visual media installations presenting a rotating Earth, one presented on a 2D display and the other projected on a physical 3D object, and(More)
In this paper we address two problems involved in video segmentation for human–computer interface applications. First we propose an adaptive method for hand skin segmentation to enhance the hand feature detector. A new analysis colour space is used in order to obtain a reliable adaptive skin detector. The colour space is chosen so that the image has a(More)
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