oksi

TURNKEY BENCHTOP HYPERSPECTRAL SYSTEMS
For Field or Laboratory Use

OKSI provides custom configured, turnkey hyperspectral imaging systems for use in:
  • Ground truth collection for remote sensing
  • Laboratory analyses and spectral library development
Applications include:
  • Remote sensing in
    • Agriculture
    • Geology
    • Military
  • Produce and meat inspection
  • Forensics
Camera Hardware
The Hyperspectral Camera System


Read and SPIE Invited paper overviewing tunable filter based hyperspectral imaging

Why Spectral Imaging?

Spectral Imaging combines the strength of conventional imaging with that of spectroscopy to accomplish tasks that separately each can not perform. The product of a spectral imaging system is a "stack" of images of the same object or scene, each at a different spectral narrow band (or "color"). For a tutorial covering the basics please browse the Hyperspectral Newsletter and view a list of related resources including links to most of the major organizations dealing with the technology.

To integrate a hyperspectral system you'll need to carefully select the proper components to assure that the performance of each subsystem is not compromised by that of other subsystems, write the drivers to integrate these components, develop special algorithmic tools to analyze and visualize these data, and finally integrate the entire system into a smoothly functioning instrument. Most organizations may take from three months to a year to go through this process, and there is no assurance of success.

OKSI's system includes everything required for a plug-N-play instrument. Moreover, your system can be customized to the specific requirements of your project, operating environment, and budget. From the laboratory to the field, using wall power or battery, optimized spectral resolution to match spatial resolution, spatial coverage vs. spatial resolution, etc.

These systems are built using the best Liquid Crystal Tunable Filters (LCTF) made by Cambridge Research & Instrumentation, CRI, we use the most appropriate digital cameras for the job, optimized apochromatic optics, state-of-the-art frame grabbers, and properly configured host computers. Moreover, the also includes ENVI, the best available hyperspectral analysis software package from RSI. And on top, we incorporate the Hyperspectral Toolkit developed at OKSI.

But that's not all. The entire hyperspectral system functions from within ENVI environment. Image cubes are saved as ENVI files with the proper header so that data are acquired and analyzed with no need to switch between applications. Using the tools provided , data can be converted from radiance to reflectance, statistical spectral properties can easily be obtained, and results compared with library spectra or used to build new spectra.


System Specifications

SPECTRAL IMAGING SYSTEM OPTIONS
LCTF: Spectral range: VIS




    NIR


     SWIR
LCTF Transmission 400-720 nm
425-750 nm
450-650 nm
500-720 nm (narrow Band)
RGB only option also available
650-1,050 nm
700-1,100 nm
700-1,100 nm (narrow band)
1,000 - 1,600 (1,7000) nm (contact for details)
Nominal band pass: LCTF Response5, 7, 10, 15, 20, 30, 40, 50 nm
Narrow band: 0.25 nm VIS, and 0.78 nm NIR
tradeoffs include resolution vs. light level. Camera dark current and dynamic range must be considered as well
Out-of-band transmission 0.20%, 0.05% or 0.01%
Clear aperture: 30, or 20 mm
Camera: Options: 256×256 pixels
Other cameras available up to 1024×1024 pixels and more
Almost any digital camera can be custom configured
Optics: Apochromatic lenses C-mount: focal length from 4.8 mm to 70 mm
T or F-Mount available
Microscope objectives
Hyperspectral Analysis Software: ENVI
OKSI's Hyperspectral Toolbox including Sensor interface
Computer: Desktop configuration
Options: Portable laptop configuration (depends on camera type, may require docking station or SCSI interface)
Battery Pack operations, or DC-to-AC inverter

Download MultiSpectrum Applications Demo

Tools
Camera control, preview & exposure time setting from OKSI's Toolbox
 
Hyperspectral Fruit Bowl
Hyperspectral Imaging System at your desk


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