Digital holography has been widely studied in recent years, and a number of applications have been demonstrated. In this paper, we demonstrate that sparsity-based phase-shifting digital holography can be applied for image authentication. In phase-shifting digital holography, the holograms are sequentially recorded. Only small parts of each hologram are available for numerical reconstruction. It is found that nonlinear correlation algorithm can be applied to simply authenticate the reconstructed object. The results illustrate that the recovered image can be correctly verified. In the developed system, the recorded holograms are highly compressed which can facilitate data storage or transmission, and one simple authentication strategy has been established instead of applying relatively complex algorithms (such as compressive sensing) to recover the object.
|Title of host publication||Sixth International Conference on Graphic and Image Processing, ICGIP 2014|
|Publication status||Published - 1 Jan 2015|
|Event||6th International Conference on Graphic and Image Processing, ICGIP 2014 - Beijing, China|
Duration: 24 Oct 2014 → 26 Oct 2014
|Conference||6th International Conference on Graphic and Image Processing, ICGIP 2014|
|Period||24/10/14 → 26/10/14|
- holography-based security
- Image authentication
- sparsity constraint.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering