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3D Imaging through Scatterers with Interferenceless Optical System

机译:通过无干扰光学系统的散射体进行3D成像

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摘要

Imaging through a scattering medium is a challenging task. We propose and demonstrate an interferenceless incoherent opto-digital technique for 3D imaging through a scatterer with a single lens and a digital camera. The light diffracted from a point object is modulated by a scattering mask. The modulated wavefront is projected on an image sensor using a spherical lens and the impulse response is recorded. An object is placed at the same axial location as the point object and another intensity pattern is recorded with identical experimental conditions and with the same scattering mask. The image of the object is reconstructed by a cross-correlation between a reconstructing function and the object hologram. For 3D imaging, a library of reconstructing functions are created corresponding to different axial locations. The different planes of the object are reconstructed by a cross-correlation of the object hologram with the corresponding reconstructing functions.
机译:通过散射介质成像是一项艰巨的任务。我们提出并演示了通过具有单个透镜和数码相机的散射体进行3D成像的无干扰非相干光电数字技术。从点对象衍射的光被散射掩模调制。使用球面透镜将调制后的波前投影到图像传感器上,并记录脉冲响应。将一个对象放置在与该点对象相同的轴向位置上,并以相同的实验条件和相同的散射掩模记录另一个强度模式。通过重构函数和物体全息图之间的互相关来重构物体的图像。对于3D成像,将创建对应于不同轴向位置的重建函数库。通过物体全息图与相应的重构函数的互相关来重构物体的不同平面。

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