基于关联成像的运动物体方案研究
首发时间:2018-03-23
摘要:关联成像提供了一种利用常规手段难以获取图像信息的方法,是近年来量子光学领域研究的前沿和热点之一。近年来,在空间关联成像技术基础之上,出现了时间关联成像技术。本文集空间和时间关联于一起,研究运动物体的关联成像方案。首先,运动物体被分割为一系列的图片帧,第一帧被选作空间关联成像的目标物体。其次,图片帧间运动物体的位置信息被编码成时间信号,成为时间关联的目标信息。分别通过空间关联和时间关联成像技术,非局域地获取第一帧图片信息和帧间时间信号;根据设定规则,将帧间时间信号转换为运动物体的空间位置信息,并与第一帧图片信息相结合对运动物体进行移位操作,获得第二帧图片信息;以此类推,获得所有帧图片信息,最后综合成运动物体的成像。通过数值仿真验证了该方案的可行性。相比于已有运动物体关联成像方案,该方案降低了多帧图片关联成像的数据量和时间,为非局域地探索未知运动物体提供了一个新的研究方法。
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Research on moving object scheme based on correlation imaging
Abstract:Correlation imaging provides a method that is difficult to obtain image information by conventional means,which is one of the frontiers and hot spots in the field of quantum optics in recent years.In recent years, on the basis of spatial correlation imaging technology,the temporal correlation imaging technique has been developed. In this paper, the correlation of space and time is used to study the correlation imaging scheme of moving object. First, the moving object Research on imaging scheme of moving object based on temporal and spatial correlationis divided into a series of picture frames, and the first frame is selected as the target object of the spatial correlation imaging. Secondly, the position information of the moving objects between frames is encoded into time signals and becomes the target information of the temporal correlation. Through the spatial correlation and temporal correlation imaging technology, non-local access to the first frame image information and the inter-frame time signal; according to the setting rules, the inter-frame time signal is converted into the spatial position information of the moving object, and the moving object is shifted in combination with the first frame picture information to obtain the second frame picture information.By analogy, all frame picture information is obtained, and finally integrated into moving object imaging. The feasibility of the scheme is verified by numerical simulation. Compared with the related imaging schemes of existing moving objects, the scheme reduces the data and time of multi-frame image correlation imaging, and provides a new research method for exploring the unknown moving objects nonlocality.
Keywords: correlation imaging spatial correlation temporal correlation picture frame moving object
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