Leung, TS;
Jiang, S;
(2013)
Acousto-optic imaging of a color picture hidden behind a scattering layer.
Optics Express
, 21
(22)
26780 - 26785.
10.1364/OE.21.026780.
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Abstract
An imaging technique has been developed to image a color picture hidden behind a 5 mm thick, highly scattering layer with low transmittance of 0.24%. Small vibrations (< 1 µm) were induced in the hidden picture, causing a time-varying speckle pattern on the scattering layer in the front, which is captured by a CCD camera and quantified as speckle contrast difference (SCD). With two lasers at 543 nm and 633 nm, the imaging system raster-scans the front of the scattering layer and the resulting SCD image reveals the color features of the hidden picture.
| Type: | Article |
|---|---|
| Title: | Acousto-optic imaging of a color picture hidden behind a scattering layer |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OE.21.026780 |
| Publisher version: | http://dx.doi.org/10.1364/OE.21.026780 |
| Language: | English |
| Additional information: | Copyright © 2013 Optical Society of America. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1417720 |
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