Compressed sensing with off-axis frequency-shifting holography
Abstract
This work reveals an experimental microscopy acquisition scheme successfully combining Compressed Sensing (CS) and digital holography in off-axis and frequency-shifting conditions. CS is a recent data acquisition theory involving signal reconstruction from randomly undersampled measurements, exploiting the fact that most images present some compact structure and redundancy. We propose a genuine CS-based imaging scheme for sparse gradient images, acquiring a diffraction map of the optical field with holographic microscopy and recovering the signal from as little as 7% of random measurements. We report experimental results demonstrating how CS can lead to an elegant and effective way to reconstruct images, opening the door for new microscopy applications.
- Publication:
-
Optics Letters
- Pub Date:
- March 2010
- DOI:
- 10.1364/OL.35.000871
- arXiv:
- arXiv:1004.5305
- Bibcode:
- 2010OptL...35..871M
- Keywords:
-
- Physics - Optics;
- Computer Science - Computer Vision and Pattern Recognition;
- Physics - Medical Physics
- E-Print:
- vol 35, pp 871-873