New method calibrates LiDAR-camera systems using ordinary displays

Researchers have developed ScreenCalib, a novel method for calibrating LiDAR and camera systems using an ordinary display. This technique leverages displayed AprilTags and the physical screen surface to establish a cross-modal association, overcoming challenges like display geometry ambiguities and cluttered environments. ScreenCalib offers both single-pose and joint multi-pose calibration modes, with the latter refining shared extrinsics and tag scale for improved accuracy and reduced sensitivity to measurement errors. Experiments demonstrate that ScreenCalib outperforms traditional calibration-board methods in translation accuracy and shows versatility across various display types. AI

IMPACT This method could streamline the setup and calibration process for autonomous systems and robotics that rely on LiDAR-camera fusion.

RANK_REASON The cluster contains an academic paper detailing a new method for sensor calibration. [lever_c_demoted from research: ic=1 ai=0.4]

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