CASPI: Collaborative Photon Processing for Active Single-Photon Imaging

This repository contains the minimum working code for our paper:

CASPI: Collaborative Photon Processing for Active Single-Photon Imaging
Jongho Lee, Atul Ingle, JV Chacko, KW Eliceiri, Mohit Gupta
Nature Communications 2023

Requirements

• The code has been tested with MATLAB R2020b on a PC with 64-bit Windows 10.

Demos

• Run main.m

Input

Noisy and distorted raw photon transient cubes

• Example datasets for LiDAR applicaiton and FLIM application are provided in the folders Data\LiDAR and Data\FLIM, respectively.

Laser source priors

• FWHM values of the Gaussian laser pulses are provided in the code for the provided datasets.
• For the datasets using non-Gaussian laser pulses, provide the number of frequency bins of the laser pulse for the parameter N_sig_f manually.

Intensity images (optional)

• Intensity images (i_map_set) for the LiDAR dataset are provided.

Output

• Recovered photon transient cubes are saved in the folder Data\LiDAR or Data\FLIM according to the application.
• Depth maps (+ intensity images) or lifetime images are saved in the same folder.