Recovering the spectral and spatial information of an object behind a scattering media
arXiv:1902.00169 · doi:10.1364/OSAC.1.000553
Abstract
Light passing through scattering media will be strongly scattered and diffused into complex speckle pattern, which contains almost all the spatial information and spectral information of the objects. Although various methods have been proposed to recover the spatial information of the hidden objects, it is still a challenge to simultaneously obtain their spectral information. Here, we present an effective approach to realize spectral imaging through scattering media by combining the spectra retrieval and the speckle-correlation. Compared to the traditional imaging spectrometer, our approach is more flexible in the choice of core element. In this paper, we have demonstrated employing the frosted glass as the core element to achieve spectral imaging. Obtaining the spectral information and spatial information are demonstrated via numerical simulations. Experiment results further demonstrate the performance of our scheme in spectral imaging through scattering media. The spectral imaging based on scattering media is well suited for new type spectral imaging applications.
arXiv comment11 pages, 8 figures
References in corpus (8)
- Measuring the Transmission Matrix in Optics : An Approach to the Study and Control of Light Propagation in Disordered Media
- Non-invasive real-time imaging through scattering layers and around corners via speckle correlations
- On-Chip Random Spectrometer
- Focusing and Compression of Ultrashort Pulses through Scattering Media
- Multimode optical fiber based spectrometers
- Controlling light in scattering media noninvasively using the photo-acoustic transmission-matrix
- Single-shot multispectral imaging with a monochromatic camera
- Speckle-based hyperspectral imaging combining multiple scattering and compressive sensing in nanowire mats