Robotic applications involving people often require advanced perception systems to better understand complex real-world scenarios. To address this challenge, photo-realistic and physics simulators are gaining popularity as a means of generating accurate data labeling and designing scenarios for evaluating generalization capabilities, e.g., lighting changes, camera movements or different weather conditions. We develop a photo-realistic framework built on Unreal Engine and AirSim to generate easily scenarios with pedestrians and mobile robots. The framework is capable to generate random and customized trajectories for each person and provides up to 50 ready-to-use people models along with an API for their metadata retrieval. We demonstrate the usefulness of the proposed framework with a use case of multi-target tracking, a popular problem in real pedestrian scenarios. The notable feature variability in the obtained perception data is presented and evaluated.
翻译:有人的机器应用通常需要先进的感知系统来更好地理解复杂的真实场景。为了解决这一挑战,照片般逼真的物理仿真器变得越来越受欢迎,因为它们可以生成准确的数据标注并设计场景以评估泛化能力,例如光照变化、摄像机移动或不同的天气条件等。我们开发了一个基于Unreal Engine和AirSim构建的逼真框架,以生成具有行人和移动机器人的场景。该框架能够为每个人生成随机和自定义轨迹,并提供50个现成的人员模型以及用于元数据检索的API。我们通过多目标跟踪的用例证明了所提出的框架的有用性,这是真实行人场景中的一种流行问题。介绍并评估了所获得感知数据中的显著特征变化。