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. Author manuscript; available in PMC: 2021 Jul 1.
Published in final edited form as: IEEE Trans Pattern Anal Mach Intell. 2020 Apr 23;42(7):1618–1629. doi: 10.1109/TPAMI.2020.2987489

Fig. 2.

Fig. 2.

Phase-masks are essentially transparent material with different heights at different locations. This causes phase modulation of incoming wavefront and resultant wave interference produces the PSF at the sensor plane. The above image shows the closeup image of the phase-mask using in PhlatCam. The right most image was taken using a scanning electron microscope (SEM).