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Egocentric visitors localization in natural sites

机译:以自我为中心的游客在自然地点的本地化

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Localizing visitors in natural environments is challenging due to the unavailability of pre-installed cameras or other infrastructure such as WiFi networks. We propose to perform localization using egocentric images collected from the visitor's point of view with a wearable camera. Localization can be useful to provide services to both the visitors (e.g., showing where they are or what to see next) and to the site manager (e.g., to understand what the visitors pay more attention to and what they miss during their visits). We collected and publicly released a dataset of egocentric videos asking 12 subjects to freely visit a natural site. Along with video, we collected GPS locations by means of a smartphone. Experiments comparing localization methods based on GPS and images highlight that image-based localization is much more reliable in the considered domain and small improvements can be achieved by combining GPS-and image-based predictions using late fusion. (C) 2019 Elsevier Inc. All rights reserved.
机译:由于没有预安装的摄像头或其他基础设施(例如WiFi网络),因此在自然环境中对访客进行本地化具有挑战性。我们建议使用可穿戴式摄像机从访问者的角度收集的以自我为中心的图像进行定位。本地化对于向访问者(例如,显示他们在哪里或接下来要看什么)和站点管理员(例如,了解访问者要注意的内容以及他们在访问期间错过了什么)提供服务时非常有用。我们收集并公开发布了以自我为中心的视频数据集,要求12个主题自由访问自然地点。除了视频,我们还通过智能手机收集了GPS位置。比较基于GPS和图像的定位方法的实验表明,在考虑的范围内,基于图像的定位更加可靠,通过使用后期融合将基于GPS的预测与基于图像的预测结合起来,可以实现较小的改进。 (C)2019 Elsevier Inc.保留所有权利。

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