Security & surveillance
SWIR Imaging for Security & Surveillance: Long-Range Vision in Challenging Conditions
Security and surveillance operations require reliable imaging in conditions where visible cameras fail.
SWIR imaging enables long-range observation, drone detection, and enhanced situational awareness through haze, smoke, fog, and low-light environments.
NIT SWIR Products
SWIR
Gated imaging
Demonstration videos
Recommended products
SWIR – A new way of sensing
SWIR is considered by many as one of the most versatile technology for the defense & security sectors. Bringing valuable information such as the ability to identify or recognize a target (e.g: compared to MWIR & LWIR band), it brings also a better vision through harsh weather conditions (fog, smoke).
No saturation – High Dynamic Range
With a low readout noise and a High Dynamic Range, NIT SWIR cameras, e.g: WiDy SenS, can cope with the challenging requirements of the Defense and security area.
Better details & Zoom imaging – High Resolution & High Sensitivity
High resolution (up to Full HD) with High Sensitivity and ultra-low noise (25e-)
Typical applications :
- Intelligence, Surveillance and Reconnaissance (ISR)
- UAVs
- SWIR Zoom
- Airborne operations
- Firefighting
Gated Imaging
GATED IMAGING provides the ability to image a specific depth slice of a scene. Applications are multiple, including observations through obscurants (severe weather conditions), estimation of distance, and localization of obstacles (drone detection with background suppression). Imaging devices must be fast enough to cope with the reflected light.
NIT’s SWIR cameras offer at the same time, precision with the shortest effective exposure time, the shortest rise time, and the highest dynamic range on the market, enabling to cover a broad number of situations in the field, and any applications, including yours.
Demonstration videos
Recomended products
ITAR Free
NIT products are ITAR-free
HDR & High Sensitivity
- 640x512px (VGA) @15μm pixel pitch
- HDR 120dB + Gated mode optional
- USB 3.0/CameraLink /GigE/Analog/SDI
High Resolution & High Sensitivity
- 1920x1080px @8μm pixel pitch
- Readout noise 25e- (Linear mode)
- USB 3.0 & CameraLink
High Resolution & High Sensitivity
- 1280x1024px @10μm pixel pitch
- Readout noise 30e- (Linear mode)
- USB 3.0/CameraLink/SDI/CxP
Why Surveillance Imaging Is Challenging
Modern surveillance systems face several limitations:
- Poor visibility in fog, smoke, haze, or low light
- Atmospheric turbulence affecting long-range observation
- Sensor saturation in high-contrast environments
- Difficulty detecting small, distant objects such as drones
These challenges impact:
- Border security
- Critical infrastructure protection
- ISR operations
- UAV surveillance systems
Why SWIR Imaging Improves Surveillance
SWIR imaging captures wavelengths less affected by atmospheric scattering than visible light.
This enables:
- Improved visibility through fog and smoke
- Better long-range target recognition
- Enhanced image contrast
- More reliable detection in harsh environments
Unlike thermal imaging, SWIR provides reflected-light imaging with higher scene detail and object recognition capability.
SWIR helps operators identify objects, not just detect heat signatures.
Why Camera Performance Matters
Surveillance systems require cameras with:
- High sensitivity
- High dynamic range (HDR)
- Low noise
- High resolution
Advanced SWIR cameras improve:
- Target visibility
- Detection reliability
- Long-range imaging performance
NIT’s patented HDR technology helps prevent saturation in challenging lighting conditions.
Choosing the Right Imaging Technology
| Need | Recommended Technology |
|---|---|
| Long-range observation through fog | SWIR |
| Thermal hotspot detection | MWIR/LWIR |
| High-detail object recognition | SWIR |
| Standard daylight monitoring | Visible CMOS |
Key Security & Surveillance Applications
Long-Range Surveillance
SWIR enables:
- Long-distance observation
- Improved zoom imaging
- Better atmospheric penetration
Applications include:
- Border surveillance
- Maritime monitoring
- Critical infrastructure security
ISR (Intelligence, Surveillance & Reconnaissance)
SWIR cameras improve:
- Situational awareness
- Object recognition
- Low-light observation
Used in:
- Defense systems
- Airborne ISR
- Tactical operations.
Drone Detection & UAV Imaging
SWIR imaging supports:
- Small target detection
- Airborne imaging
- Obstacle localization
Especially valuable in:
- Counter-UAS systems
- UAV payloads
- Airborne surveillance
Gated Imaging
Gated imaging enables:
- Imaging through obscurants
- Distance estimation
- Background suppression
Useful for:
- Severe weather operations
- Drone localization
- Active imaging systems
Frequently Asked Questions
What is SWIR used for in surveillance?
SWIR is used for long-range surveillance, ISR operations, drone detection, and imaging through fog or smoke.
Why is SWIR better than visible imaging in fog?
SWIR wavelengths are less affected by atmospheric scattering, improving visibility in degraded conditions.
What is gated imaging?
Can SWIR cameras detect drones?
Yes. SWIR imaging improves detection and tracking of small airborne objects, especially in low-visibility conditions.
Is SWIR better than thermal imaging?
SWIR and thermal imaging serve different purposes. SWIR provides higher scene detail and object recognition, while thermal imaging detects heat signatures.
Improve Situational Awareness with SWIR Imaging
SWIR imaging provides powerful capabilities for semiconductor manufacturing, inspection, and process optimization.
NIT SWIR cameras deliver the sensitivity and performance required for demanding security & surveillance applications.
Request sample SWIR images
Discuss your ISR or UAV application
