Polyspectral imaging

Polyspectral imaging cameras (multispectral and hyperspectral) for all kinds of applications: research (R&D), laboratory, industry, production plant, machine vision, line inspection, drones and RPAS, etc,....

 

And as there is no definition of where multispectral imaging ends and where hyperspectral imagers start, from PCL we propose to call it generically polyspectral imaging or imagers and standardize to the most accepted:
- multispectral camera: up to 10 spectral bands
- hyperspectral camera: >10 spectral bands

 

The polyspectral technique basically consists of providing the spectral analysis with the spatial component: making each pixel of an image sensor behave like a spectrometer. In this way, the information of each spectral band can be retrieved pixel by pixel. Cool, isn't it?

 

There are many technologies and types of spectral imaging and at PCL we are committed to two for our hyperspectral and multispectral cameras:
- use of electro-optical tunable filter: fast, many bands
- snapshot without compromising spatial resolution (pixels) vs. spectral resolution (bands)

 

And in both cases allowing
- the use of  lenses with C- or F- thread (C-mount, F-mount) so as not to compromise neither the field of view nor the focusing distance
- a high light throughput to the detector always higher than 90%, enabling the capture of quality spectral images even in low light conditions
- the full use of the spectral range of the CMOS (Si) or InGaAs sensor in UVA - VIS - NIR – SWIR
- the use of powerful camera control and spectral image and hypercube processing software at no extra cost
- spectral maps: represent with a color (fake, not real) all pixels of the same spectral class (similar spectral characteristics).

 

Multispectral camera and hyperspectral camera selection chart:

	ISC-Muses9-HS	ISC-Muses9-MS	ISC-Muses9-SnS	ISC-Muses9-DR
Technology	EO filter	EO filter	Snapshot	Snapshot
Wl range	370-1000	365-1700	370-1000	400-1000
Spectral bands	126 / 315	6 (Si) + 6 (InGaAs)	10 / 22	22
Spectral maps	optional	optional	0 / 2	optional
Spatial resolution/band	6.4 MP	6.4 + 0.3 MP	6.4 MP	6.4 MP
Light throughput	94% (pol. Indep.)	94% (pol. Indep.)	90% (pol. Indep.)	96% (pol. Indep.)
Thread - lens type	C-mount	F-mount	C-mount	C-mount
Interface	USB3.0	USB3.0	USB3.0	USB3.1
Weight	2100 g	1850 g	480 g	310 g
Control + process sw	Incl.	Incl.	Incl.	Incl.
		opt 1000-1700 nm		(drone model)

 

Typical applications and industries of polyspectral imaging systems:
- identification and classification of plant species, vegetation index (VI, NDVI), plant health, water stress
- crops, agriculture, soils: analysis of components, nutrients or fertilizers
- fires: detection and study
- agri-food industry: food, beverages; sorting and packaging
- mining, materials, chemical and petrochemical industry
- water: pollutants; wetland monitoring
- art and archeology
- microscopy, biomedicine and biosciences
- health: study of diseases and pathologies, tissues
- pharmaceutical industry
- surfaces and coatings
- recycling and waste sorting
- counterfeiting, forensic science
- remote sensing
- machine (artificial) vision and inspection in general
- aerial-airborne applications (drone, RPAS, UAVs and others), in the field, laboratory, industrial or R&D in general.

 

These multispectral and hyperspectral systems are not perfect, but they are among the best, and at PCL we are very pleased to be the distributors in Spain of the polyspectral technology expert Spectricon.

 

More information: ventas@procarelight.com / +34 605 024 420