FAST-Calib LiDAR–Camera Extrinsic Calibration Target

The FAST-Calib LiDAR–Camera Extrinsic Calibration Target is a professional-grade LiDAR–camera calibration target for accurate, repeatable camera–LiDAR extrinsic calibration. This hybrid calibration board combines large circular LiDAR features with ArUco fiducial markers, enabling reliable detection across both camera images and LiDAR point clouds.
The target is optimized for FAST-Calib calibration workflows and similar multi-sensor calibration pipelines used in robotics, autonomous vehicles, SLAM, and sensor-fusion systems.

What This LiDAR–Camera Calibration Target Is Used For

Camera–LiDAR Extrinsic Calibration

This calibration target is used to determine the exact spatial relationship (rotation and translation) between a camera and a LiDAR sensor. Accurate extrinsic calibration is essential for:

• Aligning 2D camera imagery with 3D LiDAR data
• Improving sensor fusion and perception accuracy
• Supporting autonomous navigation and mapping
• Reducing calibration drift in multi-sensor systems

By using both visual fiducials and geometric LiDAR features, this board enables robust, automation-friendly calibration in real-world conditions.

Hybrid Calibration Target Design

Why a Hybrid LiDAR–Camera Calibration Board Works Better

This target uses two complementary feature types, each optimized for a different sensor modality.

Circular LiDAR Features

• Four large 240 mm circular cutouts
• Easily detected in LiDAR point clouds
• Rotation-invariant geometry for stable center fitting
• Effective at long range and with sparse LiDAR data

ArUco Fiducial Markers

• High-contrast ArUco calibration markers
• Enable precise camera-based detection and pose estimation
• Unique IDs allow automatic target identification
• Ideal for fully automated calibration pipelines

This hybrid approach significantly outperforms checkerboard-only targets for LiDAR camera calibration.

Technical Specifications

Board Geometry

• Finish Size: 1400 mm × 1000 mm (special-cut board)

• Circular Features: Four (4)

• Circle Diameter: 240 mm

• Circle Spacing: 500 mm × 400 mm (center-to-center)

ArUco Marker Details

• Dictionary: DICT_6X6_250

• Top Left Marker: ID 1

• Top Right Marker: ID 2

• Bottom Left Marker: ID 3

• Bottom Right Marker: ID 4

• Marker Offset: 50 mm from board edges

All feature positions are fixed and repeatable, supporting accurate solver constraints for extrinsic calibration.

FAST-Calib LiDAR–Camera Extrinsic Calibration Target Features

UV Direct Printing for High-Contrast Detection

Precision Manufactured for Accurate Extrinsic Calibration

Custom Shape, Precision Cut

Anti-Reflective Calibration Surface

Anti-Reflective, Near-Lambertian Surface

(Ultra-Matte Finish · Near-Lambertian Surface on ACM)

All FAST-Calib calibration targets are produced using our ultra-matte printing process, creating a highly diffuse white surface that minimizes glare and variation in reflectance. When printed on ACM (Aluminum Composite Material), the full-coverage, UV-cured white ink exhibits near-Lambertian reflectance across the visible and near-infrared spectrum.

This helps maintain consistent corner and feature contrast across viewing angles, reducing specular highlights and uneven reflections that can introduce detection errors—particularly in uncontrolled lighting or during calibration of active sensors. The UV-ink surface on ACM is scratch-resistant, rigid, and durable, making it well-suited for both indoor and outdoor calibration environments.

Aluminium Composite Material Specs

• Material Thickness: Available in 3mm, 6mm
• Panel Type: Aluminium Composite Panel
• Surface: Machined for an extremely smooth surface free from imperfections
• Temperature Range: from -50°C to +80°C
• Fire Classification: CLASS A - P/0/1
• Physical Weight: 0.78125 lbs per ft.² (3mm), 1.3125 lbs per ft.² (6mm)
• Finish Option: Includes an enhanced anti-reflective finish - Ultra Matte - (white ink printed edge to edge)
• Manufacturing Tolerance: ±0.004 inches in either direction
• Flexural Strength: 80–100 MPa
• Rigidity: 3mm high, 6mm very high
• Density: (approx.) 3.8 g/m²

Product Datasheet Download

Why FoamCorePrint?