Compressive circular polarization snapshot spectral imaging

Single disperser design for compressive, single-snapshot spectral imaging

Recent theoretical work in “compressed sensing” can be exploited to guide the design of accurate, single-snapshot, static, high-throughput spectral imaging systems. A spectral imager provides a three-dimensional data cube in which the spatial information of the image is complemented by spectral information about each spatial location. In this paper, compressive, single-snapshot spectral imaging...

Computational Snapshot Spectral Imaging

Compressive Spectral and Coherence Imaging

Compressive Spectral and Coherence Imaging by Ashwin Ashok Wagadarikar Department of Electrical and Computer Engineering Duke University

3D compressive spectral integral imaging.

A novel compressive 3D imaging spectrometer based on the coded aperture snapshot spectral imager (CASSI) is proposed. By inserting a microlens array (MLA) into the CASSI system, one can capture spectral data of 3D objects in a single snapshot without requiring 3D scanning. The 3D spatio-spectral sensing phenomena is modelled by computational integral imaging in tandem with compressive coded ape...

Compressive Spectral Estimation with Single-Snapshot ESPRIT: Stability and Resolution

In this paper Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) is developed for spectral estimation with single-snapshot measurement. Stability and resolution analysis with performance guarantee for Single-Snapshot ESPRIT (SS-ESPRIT) is the main focus. In the noise-free case exact reconstruction is guaranteed for any arbitrary set of frequencies as long as the numbe...