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In this paper we describe a method to support interaction with a cellphone-based projector-camera system. We describe a novel approach that uses a technique known in computer vision as ldquostructured lightrdquo. It is based on projecting some special pattern of light onto a scene while imaging it with a camera. The distortions of the known pattern in the resulting image are due to the scene geometry...
Fundamental properties of finite 3D dust clouds, so called Yukawa balls are presented. In these systems the particles are arranged in concentric spherical shells ("onion shells"). Recent progress in diagnostic techniques is described which allows to reveal fundamental properties of such dust clusters. The dedicated formation of ground and metastable configurations of Yukawa balls are shown...
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