広基線ステレオイベントカメラの同期とキャリブレーションの同時推定
Simultaneous Synchronization and Calibration for Wide-baseline Stereo Event Cameras
複数のイベントカメラ間の時刻ずれを、共有視野内の物体運動を利用してミリ秒精度で同期しつつ、外部パラメータも同時に推定する手法を提案した。
著者: Wanli Xing, Shijie Lin, Guangze Zheng, Yanjun Du, Jia Pan
分類: cs.RO
原文アブストラクト
Event-based cameras are increasingly utilized in various applications, owing to their high temporal resolution and low power consumption. However, a fundamental challenge arises when deploying multiple such cameras: they operate on independent time systems, leading to temporal misalignment. This misalignment can significantly degrade performance in downstream applications. Traditional solutions, which often rely on hardware-based synchronization, face limitations in compatibility and are impractical for long-distance setups. To address these challenges, we propose a novel algorithm that exploits the motion of objects in the shared field of view to achieve millisecond-level synchronization among multiple event-based cameras. Our method also concurrently estimates extrinsic parameters. We validate our approach in both simulated and real-world indoor/outdoor scenarios, demonstrating successful synchronization and accurate extrinsic parameters estimation.
関連論文
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