TRIP: A Low-Cost Vision-Based Location System for Ubiquitous Computing
TRIP: A Low-Cost Vision-Based Location System for Ubiquitous Computing
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DOI：
10.1007/s007790200020
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发表时间：
2002-05-01
影响因子：
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通讯作者：
Hopper, Andy
中科院分区：
文献类型：
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作者：
Lopez-De-Ipina, Diego;Mendonca, Paulo R. S.;Hopper, Andy
感知计算为计算机提供感知，以便它们可以对用户活动做出反应并提供帮助。当物理空间与捕获上下文数据的传感器网络连接时，物理空间变得有感觉，这些数据被传送到遍布环境的计算设备。这些设备解释所提供的信息，并通过执行用户期望的动作来做出反应。在由传感器提供的上下文信息的类型中，位置已被证明是特别有用的。由于位置是一个重要的上下文，每当用户移动时都会发生变化，因此可靠的位置跟踪系统对许多感知应用程序至关重要。然而，用于室内位置跟踪的传感器技术部署、配置和维护起来昂贵且复杂。这些因素阻碍了感知计算在我们的生活和工作空间中的广泛采用。本文介绍了TRIP，一种低成本，易于部署的基于视觉的传感器技术解决这些问题。TRIP采用现成的硬件（低成本CCD摄像机和PC）和可打印的2-D圆形标记进行实体识别和定位。TRIP的可用性说明了通过几个感知应用程序的实现。
Sentient Computing provides computers with perception so that they can react and provide assistance to user activities. Physical spaces are made sentient when they are wired with networks of sensors capturing context data, which is communicated to computing devices spread through the environment. These devices interpret the information provided and react by performing the actions expected by the user. Among the types of context information provided by sensors, location has proven to be especially useful. Since location is an important context that changes whenever the user moves, a reliable location-tracking system is critical to many sentient applications. However, the sensor technologies used in indoor location tracking are expensive and complex to deploy, configure and maintain. These factors have prevented a wider adoption of Sentient Computing in our living and working spaces. This paper presents TRIP, a low-cost and easily deployable vision-based sensor technology addressing these issues. TRIP employs off-the-shelf hardware (low-cost CCD cameras and PCs) and printable 2-D circular markers for entity identification and location. The usability of TRIP is illustrated through the implementation of several sentient applications.