FLUORESCENCE LIFETIME IMAGING USING A MULTISPECTRAL TIMERESOLVED WAVELET-BASED SINGLE PIXEL IMAGING SYSTEM
Résumé
The single-pixel camera (SPC) is an emerging imaging system that can produce high quality images with a low-cost system [1,2]. For instance, a SPC can be coupled with a spectrometer and a photon counting board to obtain a hyperspectral time-resolved imaging system [3]. SPC image restoration is usually based on the compressive sensing theory (CS) [1-3], which is computationally demanding. In this work, as an alternative to CS, we present a fast wavelet-based adaptive acquisition strategy that allows high compression rates with little degradation of the image quality. The applicability of our approach is demonstrated on a hyperspectral time-resolved SPC for fluorescence lifetime imaging in samples embedding different fluorophores1. M. Duarte et al, IEEE SPM, 25, 83–91, 20082. F. Rousset et al, IEEE TCI, in press, 20163. Q. Pian et al, Opt. Lett. 40, 431-434, 2015