关键词：第一人称视觉；上下文感知的感知；认知动作联动；传感器
摘 要：Being aware of the context is one the important requirements of Cyber-Physical Systems (CPS). Context-aware systems have the capability to sense what is happening or changing in their environment and take appropriate actions to adapt to the changes. In this chapter, we present a technique for identifying the focus of attention in a context-aware cyber-physical system. We propose to use first-person vision, obtained through wearable gaze-directed camera that can capture the scene through the wearer's point-of-view. We use the fact that human cognition is linked to his gaze and typically the object/person of interest holds our gaze. We argue that our technique is robust and works well in the presence of noise and other distracting signals, where the conventional techniques of IR sensors and tagging fail. Moreover, the technique is unobtrusive and does not pollute the environment with unnecessary signals. Our approach is general in that it may be applied to a generic CPS like healthcare, office and industrial scenarios and also in intelligent homes.