Approaching real-time terahertz imaging with photo-induced coded apertures and compressed sensing

M.I.B. Shams; Z. Jiang; S. Rahman; J. Qayyum; L.-J. Cheng; H. G. Xing; P. Fay; L. Liu

Approaching real-time terahertz imaging with photo-induced coded apertures and compressed sensing

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Author(s): M.I.B. Shams ¹ ; Z. Jiang ¹ ; S. Rahman ¹ ; J. Qayyum ¹ ; L.-J. Cheng ² ; H. G. Xing ¹ ; P. Fay ¹ ; L. Liu ¹
- Affiliations: 1: Department of Electrical Engineering, University of Notre Dame, Notre Dame, IN 46556, USA;
  2: School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR 97331, USA
Source: Volume 50, Issue 11, 22 May 2014, p. 801 – 803
DOI: 10.1049/el.2014.0993 , Print ISSN 0013-5194, Online ISSN 1350-911X

Received 19/03/2014, Published 19/05/2014

Photo-induced coded-aperture imaging (PI-CAI) based on compressed sensing (CS) at 590 GHz using a WR-1.5 (500–750 GHz) vector network analyser is demonstrated. For a 256-pixel (16 × 16) frame, the acquisition time can be reduced by 40%, as compared with PI-CAI without CS, while maintaining high imaging quality. On the basis of this approach, it is envisioned that real-time (26 fps) THz imaging with 1000 pixels (32 × 32) can be realised using high-speed digital micromirror device chipsets and optimised data-acquisition software.

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Approaching real-time terahertz imaging with photo-induced coded apertures and compressed sensing

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