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HSI IN A NUTSHELL
www.specim.fi
SPECIM, SPECTRAL IMAGING LTD.
World leading manufacturer and suppplier for hyperspectral imaging technology and solutions
Hundreds of customers worldwide.
Distributor and integrator network covers more than 40 countries
We make hyperspectral imaging possible
SPECIM IN 2015
Established in 1995, Spin-off from VTT
Located in Oulu, Finland
International team of 55 people
Established, long term customer relationships
> 95% of the products exported0
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Revevenue 1995-2015 k€
Core AISA Sisu
SPECTRAL IMAGING
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SPECTRUM Spectrum is defined as the intensity of light as a function
of wavelength
It can be presented for example as:
Emission spectrum
Reflectance spectrum
Absorption spectrum
Transmission spectrum
Material dependent
Due to the molecular structure
Photons are absorbed and this causes rotation and vibration of water molecules (heating the sample)
WHAT IS HYPERSPECTRAL IMAGING ?
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Purpose of Spectral Imaging
Spectral Imaging is used to detect individual material-dependent features or “fingerprints” due to specific chemical bonds in different materials.
The ultimate goal
Complete spectrum is collected at every position of the samples
Detect different materials - Qualitative and Quantitative analysis
Spectral and Spatial distribution
HOW TO PRODUCE HYPERSPCETRAL DATA
PUSH-BROOM APPROACH
www.specim.fi
A line-scan device
Full spectra of the all spatial positions along the imaged line is recorder in one single snapshot
Target must be imaged line-by-line to form the 2D image
PUSH-BROOM APPROACH
www.specim.fi
N17E
HOW TO AQUIRE 2D SPECTRAL IMAGES?
www.specim.fi
Sensor with 2D detector array
Imaging spectrograph with input slit
Fore objective
Line light source
Sample stage
PUSH-BROOM APPROACH
www.specim.fi
Pushbroom is the preferred technology selection for most spectral imaging applications
Pushbroom technology provides ca. 5-10 times higher light throughput than tunable filters
Illumination can be focused 10-30 times more efficiently
On-line application Need for simultaneous spectral data in each pixel with a moving
target or moving instrument Moving webs and conveyer belts
Same technology in outdoor measurements, laboratory and final application
WAVELENGTH RANGES
www.specim.fi
Specim is providing push-broom hyperspectral imaging devices for the following wavelength ranges
UV (200 – 400 nm) VIS (380 – 800 nm) Raman (500 – 900 nm/800 – 1000 nm) VNIR (400 – 1000 nm) Extended-VNIR (600 – 1600 nm) NIR (900 – 1700 nm) SWIR (1000 – 2500 nm) MWIR (3 – 5 um) LWIR (8 – 14 um)
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SPECIM FX CAMERAS
SPECIM FX SERIES
FAST, SMALL & FLEXIBLE HYPERSPECTRAL CAMERAS SPECIFICALLY DESIGNED FOR
INDUSTRIAL MACHINE VISION
SPECIM FX17NIR (900–1700 nm)
SPECIM FX10VNIR (400–1000 nm)
SMALL SIZEMuch smaller footprint than
traditional hyperspectral cameras
85 mm
150 mm
71 mm (Specim FX10)75 mm (Specim FX17)
85 mm
FAST OPTICS
HIGH SENSITIVITYEnables good signal with short integration times
HIGH SIGNAL TO NOISE RATIOEnables better detection accuracy on high speeds
(F/1.7)
FLEXIBILITYFree wavelength selection from 224 bands
within the camera coverage
SPECIM FX17Coverage: 900-1700 nm
SPECIM FX10Coverage: 400-1000 nm
HIGH SPEEDMore FPS than you ever need
EXAMPLE 1 : Full range (224 bands) selected: 670 FPS
EXAMPLE 2 : Three specific regions selected (4 bands): 15 000 FPS
EXAMPLE 1 : Full range (224 bands) selected = 330 FPS
EXAMPLE 2 : Three specific regions selected (4 bands) = 7130 FPS
PLUG ’N’ PLAYEvery Specim FX unit gives identical results
INTEGRATION
CAMERA INTERFACE:CameraLinkGigE Vision
ACQUISITION SOFTWARE &
SDK:LUMO Toolkit
MULTIPLE
MOUNTING OPTIONS
1. (Only in Specim FX10)
2.
3.
4.
5.
Spectral Range 400 – 1000 nm 900 – 1700 nm
Spectral Bands 224 224
Spectral FWHM 5.5 nm 8 nm
Spatial Sampling 1024 px 640 px
Frame Rate 330 FPS full frame 670 FPS full frame
FOV 38 ̊
F-number F/1.7
Camera SNR 600:1 1000:1
Camera Interface GigE Vision or CameraLink
Dimensions 150 x 85 x 71 mm 150 x 85 x 75 mm
Weight 1.4 kg 1.7 kg
Integrated shutter and order blocking filter
Integrated shutter
SPECIM FX10 SPECIM FX17
APPLICATIONS
HYPERSPECTRAL IMAGING ACCURATELY MEASURES AND SORTS COLORS
Do colors drift in a dyeing or high quality printing process?
Do flat panel displays meet the color standards?
Are ceramic floor tiles of same color from batch to another?
Map the spectral contents of an old work of art
Customer examples: Rohm, Canon, Seico, MsMacro Systems, Kawasaki, Topcon, Iris
BANK NOTES – 100 YUANS
500 nm 600 nm
650 nm 800 nm
BANK NOTES – 100 YUANS
fluorescence
ON-LINE CHEMICAL INSPECTION
Blister package inspection Capsule inspection
QUANTITATIVE CALIBRATION
Result
Consentrational mapping for each chemical ingredient
Additionally particle size and shape
PLANT SPECTROSCOPY
Chlorophyll, carotenoids, water and cellulose are the main parametres that determine plant spectral reflectance.Flovonoids and antocyanins are important coloring agents.
Rascher et al. (2010) Precision Crop Protection, Springer, ISBN: 978-90-481-9276-2, pp 87-100
AUTOMATED PLANT PHENOTYPING PLATFORM
SMO bvbaBelgium
VEGETATION HEALTH MAPPING
Airborne HSI in VNIR provides sensitive and high resolution detection and mapping of a fungus disease in oil palm trees
>50 km2/h@0.5 m ground resolution@50 m/s (100 knots)
Sarawak Forest Department, Malaysia
AGRICULTURAL RESEARCH
Seeds, kernels, plants
Classification
Diseases
Plant breeding
Animal feed research
Durum wheat classification
Vitreous Kernels content
High protein and gluten
Hard grain Sorting to vitreous and non-
vitreous kernels
Patch quality and price
Canadian Grain Research Laboratory
DEVICES SUITABLE FOR FIELD WORK
Growth phase
VNIR, NIR and SWIR ranges
Possibility to control also the processing
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Copyright UmBio AB
Quality of Cheese
Mold
Measure content and distribution:
• Fat
• Protein
• Water (Dry matter)
• Salt
Additional application areas:
• Analyze hole structure
• Variation in wax layer
• Detection of mold
• Monitor maturity of cheese
• Analyze whole cheese blocks, cut, sliced
or grated cheese
Copyright UmBio AB
Grading of Meat
Example of parameters:
• Fat
• Protein
• Connective tissue
• Bone
• Water
• Salt
Complex parameters such as:
• Origin
• Type of meat
• Effect of aging/storage
Use the UmBio system to get a high resolution image of content and distribution in the meat product
Copyright UmBio AB
Detection of Unwanted Objects
NutNut (Coating)
Shell (Inside)
Shell (Outside)
Stone
Alunite Kaolinite Illite
GEOLOGY, GEOTHERMAL, OIL & GAS
Courtesy of SpecTIR LLC, USA
Multiple pointspectrometer
• Near Infrared (NIR) spectral camera combined with 100 channel fiber optics
• Acquires snapshot moisture profiles across web at 75 Hz
• Placed in paper machine wet end
Result is a real-time two dimensional map of paper web moisture content
Resolution 10 cm on a10 m wide web, which moves 1500 m/min
Real time moisture mapping
RECYCLING
NIR camera for recycling different materials
NATIONAL MUSEUM OF WROCLAW
Henryk Stażewski (1894 – 1988): Composition (1957)
Curtesy from Agata Warszewska
SWIR camera for the detection of sub-layers in paintings
NATIONAL MUSEUM OF WROCLAW
Visible IR: ca. 1600 nm X rays
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