Speckle Research for 3D Imaging LADAR
Abstract
We are studying basic topics of image science related to a new class of speckle-based laser-ranging radars (LADAR) as well as related basic studies of novel integrated imaging and computing systems. Four major research projects are (1) study of speckle patterns including metrology for small pixels on photodetector arrays. (2) Theory and experiments for space and wavelength dependence of speckle from a thick diffuser. (3) study of coded aperture systems. (4) Concepts for imaging through a turbid and turbulent medium. During the final report period, the novel phase coded aperture system has been successfully reduced to practice and important technology transfer by OSA talks, presentations by W Chi at two Universities and OSA as well as patent application have been completed. In preparation is a paper describing a liquid crystal phase screen. For speckle study, we completed the reduction to practice of a new space invariant 4F optical system for our ongoing study of propagation in a thick diffuser or a turbid medium. Also, in preparation is a theoretical analysis together with experiments to verify our theoretical prediction for wavelength decorrelation through a series of opal milk glass diffusers. These studies are fundamental achievements related to our future research for imaging through fog or particulates.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 24, 2011
- Accession Number
- ADA544760
Entities
People
- Nicholas George
Organizations
- University of Rochester