Abstract
Compressed sensing has been discussed separately in spatial and temporal domains. Compressive holography has been introduced as a method that allows 3D tomographic reconstruction at different depths from a single 2D image. Coded exposure is a temporal compressed sensing method for high speed video acquisition. In this work, we combine compressive holography and coded exposure techniques and extend the discussion to 4D reconstruction in space and time from one coded captured image. In our prototype, digital in-line holography was used for imaging macroscopic, fast moving objects. The pixel-wise temporal modulation was implemented by a digital micromirror device. In this paper we demonstrate 10x temporal super resolution with multiple depths recovery from a single image. Two examples are presented for the purpose of recording subtle vibrations and tracking small particles within 5 ms.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 250-262 |
| Number of pages | 13 |
| Journal | Optics Express |
| Volume | 25 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 9 2017 |
Funding
National Science Foundation (NSF) CAREER grant IIS-1453192; Office of Naval Research (ONR) grant 1(GG010550)//N00014-14-1-0741; Office of Naval Research (ONR) grant #N00014-15-1-2735. The authors were grateful for the constructive discussions with Dr. Roarke Horstmeyer, Donghun Ryu and the reviewers.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics