Image Processing with Incoherent Light

对于许多图像处理应用，非相干辐射具有许多优于相干辐射的优点。它本质上提供了卓越的信噪比，并提供了更多的灵活性。这项计划中的研究是之前美国国家科学基金会支持的工作(ECS-8212472)的继续，该工作探索了非相干光图像处理的各个方面。图像处理操作将基于使用扩展光源和多色光的干涉测量。工作将集中在三个主要主题上：第一是非相干空间滤波的扩展，其中产生任意传递函数，可与相干光学的可能传递函数相媲美。第二是一个过程，在这个过程中，图像的属性，包括分辨率，由一个平行的光圈控制，物体的光不会通过这个光圈。这一前景导致了超分辨率，即物体光通过一个小光圈，但分辨率不会降低。第三种是基于非相干光光栅成像概念的一种新的衍射层析成像技术。

Incoherent radiation offers a number of advantages over coherent radiation for many image processing applications. It inherently gives a superior signal-to-noise ratio and offers more flexibility. The planned research is a continuation of previous NSF supported work (ECS-8212472) exploring aspects of image processing with incoherent light. The image processing operations will be based upon interferometry using extended source and polychromatic light. Work will concentrate on three major topics: First is an extension of incoherent spatial filtering, wherein arbitrary transfer functions are generated, comparable to those possible with coherent optics. Second is a process whereby the image properties, including resolution, are controlled by a parallel aperture, through which no light from the object passes. This prospect leads to superresolution, whereby the object light passes through a small aperture, yet is not degraded in resolution. Third is a new kind of diffraction tomography, based on the concept of grating imaging with incoherent light.