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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Shams et al. (2014) studied this question.
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