| Autor: |
Liu, Zhentao, Tan, Shiyu, Wu, Jianrong, Li, Enrong, Shen, Xia, Han, Shensheng |
| Rok vydání: |
2015 |
| Předmět: |
|
| Zdroj: |
Sci. Rep. 6, 25718 (2016) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1038/srep25718 |
| Popis: |
The image information acquisition ability of a conventional camera is usually much lower than the Shannon Limit since it does not make use of the correlation between pixels of image data. Applying a random phase modulator to code the spectral images and combining with compressive sensing (CS) theory, a spectral camera based on true thermal light ghost imaging via sparsity constraints (GISC spectral camera) is proposed and demonstrated experimentally. GISC spectral camera can acquire the information at a rate significantly below the Nyquist rate, and the resolution of the cells in the three-dimensional (3D) spectral images data-cube can be achieved with a two-dimensional (2D) detector in a single exposure. For the first time, GISC spectral camera opens the way of approaching the Shannon Limit determined by Information Theory in optical imaging instruments. |
| Databáze: |
arXiv |
| Externí odkaz: |
|
