In industrial scenarios, effective human-robot collaboration relies on multi-camera systems to robustly monitor human operators despite the occlusions that typically show up in a robotic workcell. In this scenario, precise localization of the person in the robot coordinate system is essential, making the hand-eye calibration of the camera network critical. This process presents significant challenges when high calibration accuracy should be achieved in short time to minimize production downtime, and when dealing with extensive camera networks used for monitoring wide areas, such as industrial robotic workcells. Our paper introduces an innovative and robust multi-camera hand-eye calibration method, designed to optimize each camera's pose relative to both the robot's base and to each other camera. This optimization integrates two types of key constraints: i) a single board-to-end-effector transformation, and ii) the relative camera-to-camera transformations. We demonstrate the superior performance of our method through comprehensive experiments employing the METRIC dataset and real-world data collected on industrial scenarios, showing notable advancements over state-of-the-art techniques even using less than 10 images. Additionally, we release an open-source version of our multi-camera hand-eye calibration algorithm at https://github.com/davidea97/Multi-Camera-Hand-Eye-Calibration.git.

在工业场景中，人机协作依赖于多摄像头系统来监控人工操作员，尽管机器人工作区域通常会出现遮挡。本文介绍了一种创新且强大的多摄像头手眼标定方法，旨在优化每个摄像头与机器人基坐标系以及其他摄像头之间的姿态，通过全面的实验证明了该方法优于现有技术的表现，即使只使用不到10张图像，并且公开发布了我们的多摄像头手眼标定算法的开源版本。

工业机器人工作单元人机协作的多摄像头手眼校准