Head-mounted video cameras (with and without an eye camera to track gaze direction) are being increasingly used to study infants’ and young children's visual environments and provide new and often unexpected insights about the visual world from a child's point of view. The challenge in using head cameras is principally conceptual and concerns the match between what these cameras measure and the research question. Head cameras record the scene in front of faces and thus answer questions about those head-centered scenes. In this “Tools of the Trade” article, we consider the unique contributions provided by head-centered video, the limitations and open questions that remain for head-camera methods, and the practical issues of placing head cameras on infants and analyzing the generated video.

中文翻译：

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头戴式摄像机对研究婴幼儿视觉环境的贡献

头戴式摄像机（带有或不带有用于跟踪注视方向的眼部摄像机）正越来越多地用于研究婴幼儿的视觉环境，并从儿童的角度提供有关视觉世界的新的且通常出乎意料的见解。使用头部摄像头的挑战主要是概念性的，涉及这些摄像头测量的内容与研究问题之间的匹配。头部摄像头记录人脸前方的场景，从而回答有关那些以头部为中心的场景的问题。在这篇“交易工具”文章中，我们考虑了以头部为中心的视频所提供的独特贡献、头部摄像头方法仍然存在的局限性和未解决的问题，以及将头部摄像头置于婴儿身上并分析生成的视频的实际问题.