首页|Improving resolution of lensless imaging with higher harmonics of Fresnel zone aperture
Improving resolution of lensless imaging with higher harmonics of Fresnel zone aperture
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NSTL
Optical Soc Japan
As part of our ongoing research on lensless imaging with a Fresnel zone aperture (FZA), we propose a method of improving resolution with higher FZA harmonics. Although previous research has required a finer FZA pitch to improve resolution, there was a limit to how much it could be utilized because of the diffraction. Our proposed method can improve resolution without a finer FZA pitch by utilizing higher harmonics. We confirmed the principle by simulation and experimentation.
Computational photographyLensless cameraFresnel zone apertureCoded apertureHigher harmonics
NSTL
Optical Soc Japan
