Single-Pixel Diffuser Camera

Baolei Liu, Fan Wang* (Corresponding Author), Chaohao Chen, David McGloin* (Corresponding Author)

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We present a compact, diffuser assisted, single-pixel computational camera. A rotating ground glass diffuser is adopted, in preference to a commonly used digital micro-mirror device (DMD), to encode a two-dimensional (2D) image into single-pixel signals. We retrieve images with an 8.8% sampling ratio after the calibration of the pseudo-random pattern of the diffuser under light-emitting diode (LED) illumination. Furthermore, we demonstrate hyperspectral imaging with line array detection by adding a diffraction grating. As the random and fixed patterns of a rotating diffuser placed in the image plane can serve as 2D modulation patterns in single-pixel imaging, we do not need further calibration for spectral imaging case since we use a parallel recovery strategy for images at all wavelengths. The implementation results in a cost-effective single-pixel camera for high-dimensional imaging, with potential for imaging in non-visible wavebands.
Original languageEnglish
Article number7800205
Number of pages5
JournalIEEE Photonics Journal
Volume13
Issue number6
Early online date14 Oct 2021
DOIs
Publication statusPublished - 1 Dec 2021

Bibliographical note

This work was supported in part by Australian Research Council DECRA Fellowship (DE200100074, F.W.), in part by Australian Research Council Discovery Project (DP190101058, F.W.), and in part by China Scholarship Council (B.L.: No.201706020170).

Keywords

  • single-pixel imaging
  • spectral imaging
  • scattering medium

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