Robotics & Vision

Stereo Camera Calibration

High-precision depth perception enabling autonomous mobile robots to navigate complex environments with millimeter accuracy

🤖
Client
Warehouse Robotics
📏
Depth Accuracy
1mm @ 5m
Frame Rate
60 FPS

Depth Perception Revolution

A leading warehouse automation company needed ultra-precise stereo vision for their fleet of autonomous mobile robots (AMRs) navigating dynamic warehouse environments. Their robots required real-time depth perception to safely navigate around workers, identify packages, and dock with millimeter precision.

CalibWorks developed an advanced stereo calibration system that achieves sub-pixel rectification accuracy, enabling robots to perceive depth with 1mm precision at 5 meters distance. The solution reduced collision incidents by 98% and increased picking accuracy to 99.9%.

  • Real-time depth map generation at 60 FPS
  • Automatic recalibration during operation
  • Works in varying lighting conditions (5-50,000 lux)
  • Temperature compensation from -20°C to +50°C
  • Compatible with all major stereo camera pairs
  • ROS/ROS2 native integration
Depth Precision
1mm
Processing Speed
60 FPS
Field of View
120°
Robots Deployed
2,500+

Depth Map Generation

From stereo pairs to precise 3D perception

Real-time Depth Processing

Near (0-2m)
Mid (2-5m)
Far (5-10m)
Left Camera
📷
Right Camera
📷
Depth Map
🗺️

Technical Challenges

Overcoming stereo vision complexities

🔀

Baseline Optimization

Finding the optimal camera separation distance to balance depth resolution with overlapping field of view for various working distances.

🎯

Epipolar Rectification

Achieving perfect row alignment between stereo pairs to enable efficient correspondence matching and reduce computational load.

🌈

Lens Distortion

Correcting complex radial and tangential distortions from wide-angle lenses while maintaining synchronized calibration between cameras.

⏱️

Synchronization

Ensuring microsecond-level hardware synchronization between cameras to capture moving objects without temporal disparity.

💡

Illumination Changes

Maintaining calibration accuracy across dramatic lighting variations from bright sunlight to dimly lit warehouse corners.

🔧

Mechanical Stability

Preventing calibration drift due to vibrations and mechanical stress during high-speed robot movements and collisions.

Technical Specifications

Industry-leading stereo calibration parameters

📸

Camera Configuration

  • Resolution 2 × 1920×1080
  • Baseline 12cm optimal
  • Frame Rate 60 FPS sync
  • Sensor Type Global Shutter
  • Interface USB3/GigE
⚙️

Calibration Method

  • Pattern Type ChArUco Board
  • Calibration Points 2000+
  • Reprojection Error <0.3 pixel
  • Rectification OpenCV/CUDA
  • Optimization Bundle Adjust
📊

Performance Metrics

  • Depth Range 0.3-10m
  • Depth Accuracy 0.1% of distance
  • Disparity Levels 128
  • Processing GPU Accelerated
  • Latency <16ms

Enabled Applications

Transforming industries with depth perception

📦

Warehouse Automation

Precise package detection and manipulation

🚗

Autonomous Vehicles

Obstacle detection and path planning

🏭

Industrial Inspection

3D defect detection and measurement

🎮

AR/VR Systems

Real-world depth for mixed reality

🛡️

Security Systems

3D perimeter monitoring

🌾

Agricultural Robots

Crop height and yield estimation

Operational Impact

Transforming warehouse automation efficiency

📈
99.9%
Picking Accuracy
↑ From 92%
3x
Throughput
↑ Packages/hour
🛡️
98%
Collision Reduction
↓ Safety incidents
🔋
25%
Energy Savings
↓ Optimal paths
🤖
2,500
Robots Deployed
↑ Global fleet
💰
$15M
Annual Savings
↑ ROI achieved
"

CalibWorks' stereo calibration solution transformed our warehouse robotics operations. The millimeter-accurate depth perception enabled our AMRs to navigate at twice the speed while virtually eliminating collisions. We've deployed this across 2,500 robots in 50 warehouses globally, achieving ROI in just 8 months. This technology is the foundation of our autonomous warehouse strategy.

TW

Tom Wilson

VP of Robotics • Global Logistics Corporation

Enable Perfect Depth Perception

Transform your robotic vision systems with industry-leading stereo calibration technology.