Transcript
High Speed Imaging in Machine Vision: Opportunities and Challenges Paritosh Prayagi Sales Manager EMEA
Industrial Vision Days, November 2016
JAI – A World Leading Camera Provider Company Introduction
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Leading provider of industrial digital cameras for machine vision, traffic imaging and medical. Founded in 1963 200+ employees globally Corporate Office in Valby, Denmark R&D centers and Production in Japan, USA and Finland Additional service and sales centers in Germany and China Global distribution and support Renowned product reliability More than 1,000,000 cameras sold worldwide 2
High Speed Imaging in Machine Vision: Opportunities and Challenges 1. 2. 3. 4. 5.
The Background .. Opportunities Challenges Technology from JAI for high-speed imaging Summary
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High Speed Imaging in Machine Vision: Opportunities and Challenges 1. 2. 3. 4. 5.
The Background .. Opportunities Challenges Technology from JAI for high speed imaging Summary
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Complexity Of Information Processing in Machine Vision
Towards Spectral + 3D combined Today 3D + spectral Imaging combined first spectral approaches in machine vision
improvement of colour fidelity of camera devices advent of colour filters on chips monochrome imaging
Time
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Sensor Resolutions and Applications Approximate Market Share 50%
30% Sensor Resolutions
Object Recognition
16k 8192 4096
Feature Recog. High Resolution Less complex
Feature Recognition Feature Recognition
5% 15% Colour SpecRecognition tral
Not known yet
Colour Recognition
Object Recognition
Spectral Recognition
2048
1024 Complexity of machine vision applications
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High Speed Imaging or High Speed Bandwidth?
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High Imaging Speed (frame rate, frequency etc.) Material handling expensive Achieving spatial geometry Intense illumination Data transfer management
source: inVision
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High camera resolutions Material movement not an issue Limited bottlenecks on camera head Lighting not a challenge Data handling in image processing 7
High Speed Imaging in Machine Vision: Opportunities and Challenges 1. 2. 3. 4. 5.
The Background .. Opportunities Challenges Technology from JAI for high speed imaging Summary
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Opportunities in challenging applications !
Road Inspection
Tyre Inspection
Train Inspection
Web Inspection
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High Speed Imaging in Machine Vision: Opportunities and Challenges 1. 2. 3. 4. 5.
The Background .. Opportunities Challenges What does JAI offer for high speed imaging? Summary
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Challenges
Exposure = Intensity
• Longer exposure • Big enough pixel sizes • Use wider lens aperture (reduces depth of field, more aberations) source: AIA
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Increase engineering cost Increased heat Possible human factors
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Time
• Exposure proportional to time • Exposure proportional to gain and noise • Fast read-outs 11
Challenges Interface
Exposure Dynamics Exposure time = scan time Zero Exposure time
• • • • source: AIA
Reliability/Stability Cable Lengths Technology Costs
Short Exposure time
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High Speed Imaging in Machine Vision: Opportunities and Challenges 1. 2. 3. 4. 5.
The Background .. Opportunities Challenges Technology from JAI for high speed imaging Summary
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NEW SWEEP CAMERAS – PIXEL SIZES CMOS Monochrome Line Scan Cameras
INDUSTRIAL MONOCHROME LINE SCAN CAMERAS
SWEEP SW-4000M-PMCL
SWEEP SW-8000M-PMCL
Pixel size 7.5 µm x 7.5 µm (Mode A) 7.5 µm x 10.5 µm (Mode B)
Pixel size 30.72 mm
30.72 mm
3.75 µm x 5.78 µm
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SENSITIVITY/SPECTRAL RESPONSE
Dynamic Range Vs Sensitivity!
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DYNAMIC RANGE vs SENSITIVITY HIGH DYNAMIC RANGE MODE
SMALL WELL FILLS FASTER THAN LARGE WELL Mode B
Mode B Large Well
255
Mode A Small Well
Mode A 185
0
255
Noise
0
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SENSOR WITH A DIFFERENCE
4096 Pixels Square: 7.50 um x 7.50 um
Single Sensor!!
Mode A Mode B
4096 Pixels Rectangle: 7.50 um x 10.50 um • • • •
Custom sensor design for JAI Two different pixel modes on 4096 resolution Mode A or Mode B can be selected via JAI control tool Factory Setting will be Mode A
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JAI TRI-LINEAR CAMERA... AT A GLANCE! CMOS Tri-linear Colour Line Scan Cameras
INDUSTRIAL COLOUR LINE SCAN CAMERAS
SWEEP SW-4000TL-CXP • •
Pixel size 7.5 µm x 3 lines 30.72 mm
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CMOS Trilinear colour line scan camera Max. Speed => 100 kHz Dual Line, 66 kHz tri-linear 8 and 10 bit output F-Mount, M42x1 Conformity: CE, FCC, RoHS 18
JAI TRI-LINEAR CAMERA... AT A GLANCE! CMOS Tri-linear Colour Line Scan Cameras
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Dual Line Bayer Max. Speed 100 kHz
Tri-linear Max. Speed 66 kHz
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Two options in a single camera! Dual Line or Tri-linear switch using JAI Control Tool 19
High Speed Imaging in Machine Vision: Opportunities and Challenges 1. 2. 3. 4. 5. 6.
The Background .. High Speed and High Bandwith in Machine Vision Opportunities Challenges What does JAI offer for high speed imaging? Summary
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Summary
MACHINE VISION MARKET
• >70% market => object + feature recognition • Colour applications => growing, real spectral => exotic • Combination of high speed and high bandwidth => critical
OPPORTUNITIES & CHALLENGES • •
High speed line scan cameras open doors to new applications Challenges remain: motion blur, pixel size, light intensity, noise, interface
HIGH SPEED TECHNOLOGY FROM JAI • • •
Monochrome cameras => 4096 @200 kHz and 8192 @100 kHz (two modes in 4k) Tri-linear camera => 4096 @100 kHz (dual line and tri-linear in single camera) Other high-speed cameras in area scan e.g. 12 MP @189 fps
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WHY JAI? Prime Image Quality Best shock and vibration spec. Multi-sensor cameras
Large Temperature Range Large and small pixel sizes
Single-sensor cameras
UV – SWIR cameras
Area and line scan Prism-based cameras
HDR mode cameras 22
THANK YOU for seeing the possibilities
Paritosh Prayagi
+49 171 627 9569
[email protected]
