Fig. 1. Principle for polarization-turnable single-frame wavefront measuring system

Fig. 2. Flow chart of single-frame wavefront reconstruction algorithm

Fig. 3. Experimental setup

Fig. 4. Simulation of wave surface distribution through sample tank to be measured

Fig. 5. Intensity distribution images of double shearing in four-polarization channels

Fig. 6. Comparison of wavefront reconstruction results

Fig. 7. Comparison of morphology distribution in sample area to be measured

Fig. 8. Light intensity distribution image of double shear four-polarization channel

Fig. 9. Imaging result of polarized camera

Fig. 10. Histogram of system stability test