A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water

Nevala, N E and Baden, T (2019) A low-cost hyperspectral scanner for natural imaging and the study of animal colour vision above and under water. Scientific Reports, 9 (a10799). ISSN 2045-2322

[img] PDF (Final Article) - Published Version
Available under License Creative Commons Attribution.

Download (2MB)

Abstract

Hyperspectral imaging is a widely used technology for industrial and scientific purposes, but the high cost and large size of commercial setups have made them impractical for most basic research. Here, we designed and implemented a fully open source and low-cost hyperspectral scanner based on a commercial spectrometer coupled to custom optical, mechanical and electronic components. We demonstrate our scanner's utility for natural imaging in both terrestrial and underwater environments. Our design provides sub-nm spectral resolution between 350-950 nm, including the UV part of the light spectrum which has been mostly absent from commercial solutions and previous natural imaging studies. By comparing the full light spectra from natural scenes to the spectral sensitivity of animals, we show how our system can be used to identify subtle variations in chromatic details detectable by different species. In addition, we have created an open access database for hyperspectral datasets collected from natural scenes in the UK and India. Together with comprehensive online build- and use-instructions, our setup provides an inexpensive and customisable solution to gather and share hyperspectral imaging data.

Item Type: Article
Schools and Departments: School of Life Sciences > Neuroscience
Research Centres and Groups: Sussex Neuroscience
Depositing User: Thomas Baden
Date Deposited: 16 Jan 2020 11:49
Last Modified: 18 Mar 2022 11:30
URI: http://sro.sussex.ac.uk/id/eprint/89381

View download statistics for this item

📧 Request an update
Project NameSussex Project NumberFunderFunder Ref
A window into the fly brain: "dual imaging" of neural circuits involved in locomotor behaviour in DrosophilaG2180MRC-MEDICAL RESEARCH COUNCILMC_PC_15071
Anisotropic retinal circuits for processing of colour and space in natureG2397BBSRC-BIOTECHNOLOGY & BIOLOGICAL SCIENCES RESEARCH COUNCILBB/R014817/1
Anisotropic retinal circuits for processing of colour and space in nature - Lister Institute Research PrizeG2503LISTER INSTITUTEUnset
NeuroVisEco - Zebrafish vision in its natural context: from natural scenes through retinal and central processing to behaviourG1871EUROPEAN UNION677687
Optical Electrophysiology: Establishing fluorescence voltage imaging capability at Sussex NeuroscienceG2018MRC-MEDICAL RESEARCH COUNCILUnset
Philip Leverhulme Prize - Biological SciencesG2276LEVERHULME TRUSTPLP-2017-005