5 May 2014 Single exposure compressed imaging system with Hartmann-Shack wavefront sensor
Author Affiliations +
Optical Engineering, 53(5), 053101 (2014). doi:10.1117/1.OE.53.5.053101
A new compressed imaging system based on compressed sensing (CS) theory is proposed. One single exposure with a frame sensor can replace a sequence of measurements, which is necessary in the conventional CS imaging systems. First, the phase of the incident light is randomly modulated in the Fourier transform domain using a spatial light modulator. When the modulated light passes through the inverse Fourier transform lens, the information of the optical field will spread out across the entire modulated image. Then, a Hartmann-Shack wavefront sensor is employed to sense the intensity and phase information in the final imaging plane. The resolution of the Hartmann-Shack wavefront sensor is far less than the inherent resolution of the imaging system. Finally, a high-resolution image can be reconstructed from the image partially sampled from the Hartmann-Shack wavefront sensor at any position. The numerical experiments demonstrate the effectiveness of the proposed imaging method.
© 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
Xiao Xiao, Yang Zhang, Xiaowei Liu, "Single exposure compressed imaging system with Hartmann-Shack wavefront sensor," Optical Engineering 53(5), 053101 (5 May 2014). https://doi.org/10.1117/1.OE.53.5.053101

Imaging systems


Wavefront sensors

Image sensors

Image resolution

Phase modulation


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