Skip to main content
Version: 15.0

Welcome to MetriCal

MetriCal banner

Introduction

MetriCal delivers accurate, precise, and expedient calibration results for multimodal sensor suites. Its easy-to-use interface and detailed metrics enable enterprise-level autonomy at scale.

What is Sensor Calibration?

Sensor calibration is the process of determining the parameters that define how a sensor captures data from the world. This includes:

  • Intrinsic parameters: Properties internal to the sensor itself (like a camera's focal length or distortion)
  • Extrinsic parameters: The position and orientation of sensors relative to each other or a reference frame

Good calibration ensures that:

  • Measurements from a single sensor are accurate
  • Data from multiple sensors can be properly aligned and fused
  • Perception algorithms receive consistent, accurate input data

Why MetriCal?

MetriCal provides a comprehensive solution for calibrating various sensor configurations. Unlike many calibration tools that focus on single sensors or specific combinations, MetriCal offers:

  • Support for single cameras, multi-camera arrays, LiDAR sensors, IMU sensors, and local navigation systems
  • Joint optimization of intrinsic and extrinsic parameters
  • Detailed uncertainty metrics to assess calibration quality
  • Flexible workflows for different calibration scenarios
  • Visualization tools to inspect calibration results
  • Process MCAP files and folder datasets
  • Convert a calibration file into a URDF file for easy integration into ROS
  • Use a variety of calibration targets
  • Create pixel-wise lookup tables for both single camera correction and stereo pair rectification

...and so much more!

Getting Started

Calibration Guides and Tutorials

Core Concepts

Using an LLM?

Point ChatGPT/Claude/Gemini/etc at our llms.txt or llms-full.txt files to give the LLM an easy way to ingest MetriCal documentation in markdown format. You can then ask the LLM to find information in the docs, explain concepts and tradeoffs, assist with configuration and troubleshooting, and so on.

warning

We only provide llms.txt content and associated markdown files for the latest stable version of MetriCal! If you need support for older versions of MetriCal or if you'd like to see more support for LLMs, please contact us.