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Vision based hand tracking is an important area of human machine interaction (HCI) and virtual reality techniques. However, it is still a great challenge. Due to the complicated environment and various hand appearances, it is difficult to realize stable and long-term tracking. In this paper, we proposed an effective approach to detect and track hand with a normal webcam. An integrating multi-cue detector...
The drift chamber based cosmic ray muon radiography prototype whose position resolution is expected to reach 50µm and pixel size expected to reach millimeter consists of three parts, detectors and preamplifiers, readout electronics, data acquisition and image reconstruction. In this paper, the readout electronics which is of high integration, high precision and high reliability with low cost is described...
We report a complete experimental realization of measurement device independent quantum key distribution system with decoy method, which closes loopholes in both source and detection. 25-kbit secure key is generated over a 50-km fiber link.
The Daya Bay RPC readout system is responsible for collecting Muon hit events for the anti-neutrino procedure.The expected readout system should be capable of converting analog hit signals from RPC (Resistance Chamber Plate) detectors into digital signals which will be buffered and then uploaded to online DAQ (Data Acquisition) systems as well as reporting trigger information. The numerous and relatively...
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