Fig. 1. Zernike polynomial wavefront phase modulation results. (a)‒(c) Zernike polynomial phase diagrams; (d)‒(f) far field intensity distribution maps

Fig. 2. Computational ghost imaging (CGI) system based on Zernike polynomial wavefront phase modulation. (a) Principle diagram; (b) physical image

Fig. 3. Far-field intensity distribution with or without Zernike polynomial phase modulation. (a) High intensity diffraction point; (b) mask based on Zernike polynomial phase modulation; (c) comparison of normalized intensity between high-frequency spot and aperture diffraction spot

Fig. 4. Simulation results of the blade. (a) Simulation result based on point scanning; (b)‒(d) mask pattern simulation results based on Zernike polynomial phase modulation

Fig. 5. MTF of CGI simulation results based on Zernike polynomial phase modulation and point scanning

Fig. 6. OGI algorithm reconstruction results. (a)(c) Point scanning reconstruction result; (b)(d) mask pattern reconstruction results based on Zernike polynomial phase modulation

Fig. 7. Quantitative analysis between point scanning reconstruction results and mask pattern imaging results based on Zernike polynomial phase modulation. (a) Radial contrast function curves of Siemens star; (b) MTF curves of blade