Revolutionary calibration solution combining flickering IR backlighting for event-based cameras with IR band-pass filter compatibility. The ultimate tool for calibrating event vision cameras in IR-only applications.
Why standard calibration boards fail with IR-filtered event cameras
Event-based cameras are increasingly being deployed with IR band-pass filters for applications requiring operation in darkness or immunity to visible light interference. However, this creates a unique calibration challenge that standard tools cannot solve.
The Problem: Event cameras require temporal contrast (flickering patterns) to detect features, but standard IR backlit boards provide static illumination. Meanwhile, visible-light flickering boards are blocked by IR band-pass filters. You need both capabilities in one solution.
Our Solution: CalibWorks IR Backlit Event-Vision Calibration Boards combine programmable IR LED flickering with IR wavelength compatibility, enabling event camera calibration even when using 850nm or 940nm band-pass filters.
Dual-mode calibration capability for the most demanding applications
Programmable IR LED driver with precise flicker control from 1Hz to 10kHz. Variable duty cycle (10-90%) enables optimization for different event camera sensitivities and environmental conditions.
Available in 850nm and 940nm wavelengths to match your specific IR band-pass filter. High-power IR LED array ensures strong signal even through narrow-band filters with 50nm or tighter bandpass.
Designed specifically for event-based vision sensors (DVS, DAVIS, Prophesee). Flicker patterns generate strong temporal contrast for reliable corner detection and feature extraction in event streams.
USB/Serial interface with comprehensive SDK (C++/Python) for precise flicker control. Synchronization trigger output enables multi-camera calibration setups and external device coordination.
Active thermal management system prevents LED wavelength drift during extended calibration sessions. Maintains consistent IR output for repeatable calibration results across temperature variations.
Available in checkerboard, circle grid, and random dot patterns. Laser-cut precision masks on carbon fiber backing ensure <0.05mm pattern accuracy for sub-pixel calibration precision.
Professional-grade specifications for demanding applications
Enabling event vision calibration in challenging environments
Event cameras with IR filters for automotive night vision, security surveillance, and nocturnal wildlife monitoring require IR-compatible calibration.
High-speed manufacturing inspection with event cameras using IR illumination to avoid visible light interference with production processes.
Neuroscience, biomechanics, and physics experiments requiring event-based tracking with specific wavelength isolation via band-pass filters.
Event-based visual odometry for drones operating in darkness or environments with extreme lighting variations requiring IR-only sensing.
High-speed object tracking in controlled lighting environments where IR-only operation prevents interference from ambient light sources.
Event cameras for surgical navigation and patient monitoring with IR filters to isolate specific wavelengths for fluorescence or optical tracking.
The only complete solution for IR event camera calibration
CalibWorks team has deep expertise in both event-based vision and IR imaging. We understand the unique challenges of event camera calibration and have published research on optimal flickering patterns for different event camera architectures.
Beyond hardware, we provide comprehensive calibration software specifically designed for event cameras. Our SDK handles event stream processing, asynchronous feature detection, and optimized calibration algorithms for neuromorphic sensors.
Need a different IR wavelength? Specific flicker patterns? Custom board geometry? We manufacture custom boards tailored to your exact requirements, including exotic wavelengths (780nm, 1064nm) and application-specific marker patterns.
Get started with the only calibration board designed specifically for IR-filtered event cameras. Contact our team to discuss your application and receive a custom quote.
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