Version 2.0.0 » eKalibr-Stereo: Spatiotemporal Calibration for Multiple Event Cameras

eKalibr-Stereo is a spatiotemporal calibrator orienting event-based multi-camera systems. eKalibr-Stereo has the following features:

• eKalibr-Stereo supports spatial (extrinsics) and temporal (time offsets) calibration, and is based on continuous-time methods, with outstanding calibration accuracy. eKalibr-Stereo has been integrated into the original eKalibr repository and can be used directly by downloading it.
• An additional motion-prior-aided tracking module for incomplete grid pattern identification is designed in eKalibr-Stereo, to maximize the continuity of pattern tracking, facilitating the spatiotemporal optimization.
• It is open-source and free of charge. Any organization, as long as it complies with the eKalibr-Stereo open-source license, can freely use eKalibr-Stereo for secondary development without restrictions.

We are also excited to announce the release of the official eKalibr Docker image! To make it easier for users to use the eKalibr project, we have built and published a Docker image that simplifies the setup process. With this Docker image, you can now easily run eKalibr in an isolated environment without worrying about dependency issues or complex configurations. For more details, please see [here].

Version 1.0.0 » eKalibr: Event-Based Visual Calibration Framework

eKalibr is a visual calibration framework for event cameras, inspired by the well-known frame-based calibration framework Kalibr. eKalibr has the following features:

• Calibration using a circular grid pattern. eKalibr includes a precise circular grid pattern recognition pipeline, capable of directly extracting patterns from raw event streams.
• It is open-source and free of charge. Any organization, as long as it complies with the eKalibr open-source license, can freely use eKalibr for secondary development without restrictions.
• Currently, eKalibr supports intrinsic calibration of event cameras. In the future, I will extend eKalibr to support multi-event-camera and event-IMU (event-inertial) spatiotemporal calibration. Stay tuned!

« The Demonstration Video of eKalibr »

"Event-Based, Intrinsic, Spatial, Temporal, Multiple, Easy To Use, You Only Calibrate Once"