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The 3-d motion information is significant in the study of aeolian sand transport. This paper describes the way to obtain the 3-d velocity field of moving sand by means of Stereo PIV. Double CCD-cameras are used to capture the sand particle images with the Scheimpflug configuration. The mapping function of each image plane to object plane resulted from the 3-d calibration method. Especially the evaluation...
In this paper we show that, despite some disadvantageous properties of radio frequency identification (RFID), it is possible to localize a mobile robot quite accurately in environments which are densely tagged. We therefore employ a recently presented probabilistic fingerprinting technique called RFID snapshots. This method interprets short series of RFID measurements as feature vectors and is able...
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