Nonlocal Imaging by Conditional Averaging of Random Reference Measurements  

作　　者：LUO Kai-Hong HUANG Bo-Qiang ZHENG Wei-Mou WU Ling-An 罗开红;黄博强;郑伟谋;吴令安(Laboratory of Optical Physics,Institute of Physics and Beijing National Laboratory for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100190;Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]Laboratory of Optical Physics,Institute of Physics and Beijing National Laboratory for Condensed Matter Physics,Chinese Academy of Sciences,Beijing 100190 [2]Institute of Theoretical Physics,Chinese Academy of Sciences,Beijing 100190

出　　处：《Chinese Physics Letters》2012年第7期152-156,共5页中国物理快报（英文版）

基　　金：Supported by the National Natural Science Foundation of China under Grant No 60978002;the National Basic Research Program of China under Grant Nos 2010CB922904 and 2007CB814800;the National High Technology R&D Program of China under Grant No 2011AA120102。

摘　　要：We report the nonlocal imaging of an object by conditional averaging of the random exposure frames of a reference detector,which only sees the freely propagating field from a thermal light source.A bucket detector,synchronized with the reference detector,records the intensity fluctuations of an identical beam passing through the object mask.These fluctuations are sorted according to their values relative to the mean,then the reference data in the corresponding time-bins for a given fluctuation range are averaged,to produce either positive or negative images.Since no correlation calculations are involved,this correspondence imaging technique challenges our former interpretations of “ghost” imaging.Compared with conventional correlation imaging or compressed sensing schemes,both the number of exposures and computation time are greatly reduced,while the visibility is much improved.A simple statistical model is presented to explain the phenomenon.

关 键 词：identical CORRESPONDENCE FRAMES 

分 类 号：O17[理学—数学]