New Methods for Imaging Into and Through Inhomogeneous Media

在不规则介质（从大气的不均匀性到非常困难的扩散散射介质，如人体组织）中或通过不规则介质形成图像，仍然是图像科学的主要挑战。用于解决这些问题的技术范围相当广泛，包括主动自适应光学、图像反卷积、相位恢复和相位共轭。目前的工作提出了通过非均质性成像和嵌入在非均质性中的成像对象的各种想法。第一类，通过非均匀性成像，体现了最近由首席研究员开发的使用超分辨率技术通过非均匀性成像的技术的扩展。我们的目标是以各种方式扩展这种能力，特别是消除对从源到混频器的无像差路径的需求，这可以通过结合空间和时间编码技术来实现。第二类是嵌入在非均匀性中的物体的成像。提出了几种技术，如使用极短光脉冲的共聚焦扫描。

Image formation in and through irregular media, ranging from atmospheric inhomogeneities to the very difficult case of diffusely scattering media such as human tissue, remains a major challenge of image science. The range of technology that has been brought to bear on these problems is considerable, including active adaptive optics, image deconvolution, phase retrieval and phase conjugation. The present work proposes various ideas for imaging through inhomogeneities and for imaging objects embedded within inhomogeneities. The first category, imaging through inhomogeneities, embodies extensions of a technique recently developed by the principal investigator for imaging through inhomogeneities using a superresolution technique. The goal is to extend this capability in various ways, in particular, to eliminate the need for an aberration- free path from source to the mixer, which can be accomplished by combining spatial and temporal encoding techniques. The second category is the imaging of objects embedded within the inhomogeneity. Several techniques are proposed, such as confocal scanning with the use of extremely short pulses of light.