Research on imaging scheme of moving object based on temporal and spatial correlation

Abstract

Abstract: Correlation imaging provides a method to allow the imaging of objects to be located in various optically harsh or noisy environments. It is one of the frontiers and hot spots of quantum optics. In recent years, the temporal correlation imaging technique has also been developed on the basis of spatial correlation imaging. In the paper, we propose a scheme on a moving object both using spatial and temporal correlations. First, the motion of the object is thought to divide into a series of frames, and the first frame is selected as the target object of the spatial correlation imaging. Secondly, the position information of the moving object between any two adjacent frames is encoded into time signals, and the signal becomes the target of the temporal correlation. With the spatial correlation and temporal correlation imaging, the first frame image information and any inter-frame time signal could be obtained by calculating the second intensity correlations. The inter-frame time signal is later converted to the spatial position information of the moving object with the setting rules. With the first frame and the inter-frame information between the first and the second frame, the second frame is obtained. On the basis of the second frame image, the third frame image is reconstructed by combining the relative spatial position information recovered by temporal correlation imaging. And so on, the moving object imaging is obtained by integrating all frames information finally. The feasibility of the scheme is verified by numerical simulation. Compared with the existed correlation imaging scheme for moving objects, our scheme reduces the amount of data and the reconstruction time of multi-frame image correlation imaging of moving objects, and provides a new research method for exploring the imaging of the moving objects nonlocality.

Key words: quantum optics, correlation imaging, temporal correlation, spatial correlation, moving object

CLC Number:

O439

GUO Hui1,2, WEI Zhaopeng 1, HE Ruyong 1, LIN Zequn 1, WANG Le1, ZHAO Shengmei1. Research on imaging scheme of moving object based on temporal and spatial correlation[J]. Chinese Journal of Quantum Electronics, 2019, 36(4): 385-392.

References

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