Multi-wavelength compressive computational ghost imaging

Welsh, S. S., Edgar, M. P., Jonathan, P., Sun, B. and Padgett, M. J. (2013) Multi-wavelength compressive computational ghost imaging. In: Emerging Digital Micromirror Device Based Systems and Applications V, San Francisco, CA, 5-6 Feb 2013, 86180I. (doi: 10.1117/12.2003690)

Abstract

The field of ghost imaging encompasses systems which can retrieve the spatial information of an object through correlated measurements of a projected light field, having spatial resolution, and the associated reflected or transmitted light intensity measured by a photodetector. By employing a digital light projector in a computational ghost imaging system with multiple spectrally filtered photodetectors we obtain high-quality multi-wavelength reconstructions of real macroscopic objects. We compare different reconstruction algorithms and reveal the use of compressive sensing techniques for achieving sub-Nyquist performance. Furthermore, we demonstrate the use of this technology in non-visible and fluorescence imaging applications.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Padgett, Professor Miles and Edgar, Dr Matthew and Sun, Mr Baoqing and Welsh, Mr Stephen
• Authors: Welsh, S. S., Edgar, M. P., Jonathan, P., Sun, B., and Padgett, M. J.
• College/School: College of Science and Engineering > School of Physics and Astronomy
• ISSN: 0277786X