Snapshot multispectral imaging using a filter array

TL;DR

This paper presents an optimized multispectral filter array design and a novel prototype based on photonic crystals for efficient single-shot multispectral imaging at low cost.

Contribution

It introduces an optimization method for spectral sensitivity and a new photonic crystal-based filter array prototype for snapshot multispectral imaging.

Findings

Optimized spectral sensitivity enhances image quality.

Prototype demonstrates feasibility of photonic crystal filters.

Potential for low-cost, high-speed multispectral imaging.

Abstract

A multispectral filter array (MSFA) is one solution for capturing a multispectral image (MSI) in a single shot at low cost. We introduce our optimization method of the spectral sensitivity of the MSFAs and demosaicking, and show a new prototype filter array for snapshot imaging based on a photonic crystal.