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1 Professional Education for the Security Industry Professional Education for the Security Industry
MATT BRETOI
FLIR Systems, Inc. Ph: 941.726.8121
Email: [email protected]
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2 Professional Education for the Security Industry
AIA Provider Statement
• FLIR Systems is a Registered Provider with The American
Institute of Architects Continuing Education Systems (AIA/CES). Credit(s) earned on completion of this program will be reported to AIA/CES for AIA members. Certificates of Completion for both AIA members and non-AIA members are available upon request. This program is registered with AIA/CES for continuing professional education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any material of construction or any method or manner of handling, using, distributing, or dealing in any material or product.
• Questions related to specific materials, methods, and services will be addressed at the conclusion of this presentation.
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3 Professional Education for the Security Industry
Course Description
Surveillance cameras are specified for daytime and/or
nighttime performance. Proper specification and
application involves a basic understanding of the
performance differences between thermal and visible
cameras. These performance levels are mainly
determined by the imager (chip) technology employed in
the camera. This course provides fundamental
knowledge of each type of imager technology, their
application, and current and future developments
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4 Professional Education for the Security Industry
Learning Objectives
At the end of this program, participants will be able to: • Understand the benefits and limitations of thermal
imaging • Understand the different types of imagers available in
the infrared spectrum • Determine the important performance measurements
of a thermal imager • Understand what is needed to specify and apply
thermal imagers
1. Describe the fundamental sensing mechanisms of thermal imagers. 2. Compare CMOS vs. CCD visible imager chip performance. 3. Determine when thermal cameras should be specified. 4. Compare thermal imagers from visible imagers under varying light and weather conditions.
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5 Professional Education for the Security Industry
Thermal Imaging Technology Adoption Curve
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6 Professional Education for the Security Industry
Detect
Recognize/Assess
Identify
Thermal
Visual
Applying Thermal for Security:
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Visible Light Spectrum
400 nm
500 nm
600 nm
700 nm
Gamma Rays
X-Rays
Ultra Violet Visible
Infrared
Microwaves
Radio
10-4nm
1nm
1µm
1mm
1m
• The “Light” humans see
• The Color Spectrum
• TV cameras are completely dependent upon reflected visible light
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8 Professional Education for the Security Industry
2.5 µm
5 µm
8 µm
14 µm
Gamma Rays
X-Rays
Ultra Violet Visible
Microwaves
Radio
10-4nm
1nm
1µm
1mm
1m
Infrared
• “Heat” everything emits heat
• High penetration of smoke and even light fog
• Unaffected by light or darkness
Thermal Spectrum
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9 Professional Education for the Security Industry
Different Wavelengths involved
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10 Professional Education for the Security Industry
Three ranges of Thermal detectors: • SWIR: Short Wave Infrared
- 1200nm to 3000 nm (1.2-3 microns)
• MWIR: Mid-Wave Infrared - 3000 to 5000nm (3-5 microns) - Cooled thermal imagers (long range performance) wCryogenically cooled wMaintenance involved
• LWIR: Long-wave Infrared
- 7000nm to 14000nm - Uncooled thermal imagers (short to medium range) wSolid state electronics wNo Maintenance wLong term MTBF
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Imaging example 1:
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Imaging example 2:
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Imaging through rain, snow, and fog:
Thermal Visible
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Imaging through snow:
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Imaging comparison
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Components of a Thermal Imager
Detector / Microbolometer
-Vanadium Oxide
-Amorphous Silicone
-Barium Stronium Titinate (not a microbolometer)
Focal Plane Array (FPA)
Cooled or Uncooled
Optical Imaging Engine
Detector Dewar/Cooler
Assembly (DDCA)
Final Packaging Enclosure,
App Software, UI
Thermal Imaging System
Silicon ROIC
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Important Specifications of Thermal Imagers:
• Type of detector - Vox vs. aSi vs. BST for uncooled thermal imagers
• Sensitivity of detector- measured as Net delta T in mK - See 40mK to 100mK in the commercial sector
• Field of View options, not Focal Length - Focal length does not translate to the same FoV in thermal
as it does with CCD or CMOS imagers • Resolution
- 160x120 vs. 320x240 vs. 640x480 • Analog and IP versions are prevalent
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Rapid Migration to 640x480 sensors
Industry Trend
Mid Format Detectors Large Format Detectors 320 x 240 Pixels 640 x 480 Pixels
Having only 76,800 pixels to capture information about the scene
Having 307,200 pixels to capture information about the scene
4x the resolution of mid format arrays. More pixels means better image quality, creating greater detection capability than mid format sensors,
which has created the move to high definition.
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False Color Palettes
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Typical Perimeter Layout w/ Thermal Imaging and Analytics
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22 Professional Education for the Security Industry Professional Education for the Security Industry
This concludes Inside the Camera- Visible and Thermal
imagers Course # CNL1111T1S1
MATT BRETOI FLIR Systems
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23 Professional Education for the Security Industry