26 June 2017 Phase imaging using a single-pixel camera
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We demonstrate a phase imaging method based on a single-pixel camera based on a complex-amplitude representation to measure a surface profile of objects. The use of the complex-amplitude representation of the input signal and the phaseshifting technique enables us to perform the phase imaging of an object, that is, the profilometry. The complex-amplitude mask can directly represent the Hadamard patterns that have the positive and negative values. The complex-amplitude masks are displayed on phase modulation mode liquid crystal on silicon spatial light modulator (LCOS-SLM). Furthermore, the residual area is used for the reference beam with the phase shifting. Therefore, the phase imaging system with the coaxial structure has high stability for external disturbances.
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Yoshio Hayasaki, Yoshio Hayasaki, Kazuki Ota, Kazuki Ota, } "Phase imaging using a single-pixel camera", Proc. SPIE 10329, Optical Measurement Systems for Industrial Inspection X, 1032907 (26 June 2017); doi: 10.1117/12.2270074; https://doi.org/10.1117/12.2270074

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