  Fourier ptychography microscopy (FPM) is a new computational imaging
technique that can provide gigapixel images with both high resolution and a
wide field of view (FOV). However, time consuming of the data-acquisition
process is a critical issue. In this paper, we make an analysis on the FPM
imaging system with half number of the captured images. Based on the image
analysis of the conventional FPM system, we then compare the reconstructed
images with different number of captured data. Simulation and experiment
results show that the reconstructed image with half number captured data do not
show obvious resolution degradation compared to that with all the captured
data, except a contrast reduction. In particular in the case when the object is
close to phase-only/amplitude only, the quality of the reconstructed image with
half of the captured data is nearly as good as the one reconstructed with full
data.
