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Using a single photon source, we experimentally demonstrate counterfactual communication and successfully transfer a monochrome bitmap from one location to another by employing a nested version of the quantum Zeno effect.
In order to improve the accuracy in near-field passive location systems that are based on distributed fiber sensor array, we propose a method to correct the tropospheric error The method utilizes the Hopfield refractivity profile model for the near-filed targets. Simulation results show that the proposed algorithm could quickly converge with improved precision.
It is difficult to genarate the adapting 3D terrain animation of a virtual role which is controled by motion capture. This paper presents a technique for real-time human motion retargeting on 3D terrain. First, the method based on geometry scaling was used to generate an intermediate skelton. Then a novel terrain adaption method was used to correct the positions of the intermediate skeleton's root...
In human body motion tracking research, both the tracking precision and self-occlusion are difficult parts for researchers. This paper proposes a multi-camera human-tracking method on the basis of reverse epipolar Geometry, and this method unifies reverse epipolar Geometry,the data association,the multi-view geometry relations,the Kalman filtering and epipolar Geometry equation and etc. to track the...
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.
Two approaches are proposed for generating repetition-rate quadrupled optical pulse trains using a polarization modulator (PolM) or a pair of PolMs. In the first approach, a PolM is used in conjunction with a dispersive element (i.e., a chirped fiber Bragg grating). In the second approach, a pair of PolMs which are connected in parallel are employed. The fundamental principle in achieving repetition-rate...
We have deployed mobile phones to more than 100participants in a community split into two phases. In this paper, we use this unique dataset to study the correlation between users' call and Bluetooth face-to-face interaction patterns, and their financial status. We show that such correlation exists on an individual level. We find that the interaction diversity measure correlates more strongly with...
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