Tracking moving targets behind a scattering medium via speckle correlation

Guo Chengfei; Liu Jietao; Wu Tengfei; Zhu Lei; Shao Xiaopeng

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Tracking moving targets behind a scattering medium via speckle correlation

机译：跟踪散射介质后面的移动目标通过散斑相关性

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Tracking moving targets behind a scattering medium is a challenge, and it has many important applications in various fields. Owing to the multiple scattering, instead of the object image, only a random speckle pattern can be received on the camera when light is passing through highly scattering layers. Significantly, an important feature of a speckle pattern has been found, and it showed the target information can be derived from the speckle correlation. In this work, inspired by the notions used in computer vision and deformation detection, by specific simulations and experiments, we demonstrate a simple object tracking method, in which by using the speckle correlation, the movement of a hidden object can be tracked in the lateral direction and axial direction. In addition, the rotation state of the moving target can also be recognized by utilizing the autocorrelation of a speckle. This work will be beneficial for biomedical applications in the fields of quantitative analysis of the working mechanisms of a micro-object and the acquisition of dynamical information of the micro-object motion. (c) 2018 Optical Society of America

机译：跟踪散射媒体背后的移动目标是一项挑战，它在各个领域都有许多重要的应用。由于多个散射而不是物体图像，当光线通过高度散射层时，在相机上只能接收一个随机散斑图案。值得注意地，已经找到了散斑图案的重要特征，并且它显示了目标信息可以从散斑相关来源。在这项工作中，受到计算机视觉和变形检测中使用的概念的启发，通过特定的模拟和实验，我们演示了一种简单的对象跟踪方法，其中通过使用散斑相关性，可以在横向中跟踪隐藏物体的移动方向和轴向。另外，还可以通过利用斑点的自相关来识别移动目标的旋转状态。这项工作将有利于在微对象的工作机制的定量分析领域中的生物医学应用以及微对象运动的动态信息的定量分析。（c）2018年光学学会

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《Applied optics》 |2018年第4期|共9页
作者
Guo Chengfei; Liu Jietao; Wu Tengfei; Zhu Lei; Shao Xiaopeng;
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作者单位

Xidian Univ Sch Phys &

Optoelect Engn Xian 710071 Shaanxi Peoples R China;

Xidian Univ Sch Phys &

Optoelect Engn Xian 710071 Shaanxi Peoples R China;

Xidian Univ Sch Phys &

Optoelect Engn Xian 710071 Shaanxi Peoples R China;

Xidian Univ Sch Phys &

Optoelect Engn Xian 710071 Shaanxi Peoples R China;

Xidian Univ Sch Phys &

Optoelect Engn Xian 710071 Shaanxi Peoples R China;

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Tracking moving targets behind a scattering medium via speckle correlation

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