Context Awareness Service System by Mobile Video Database Retrieval and Mining

现在有可能开发一种系统与移动相机共享机载视频记录，因为移动设备如智能手机和平板电脑等被普遍使用，高速无线通信如Wi-Fi被广泛使用。我们的研究试图解决以下技术问题，以构建更合格的友好上下文服务。我们将报告我们的研究结果，以便立即从检索大量UGC风格的收集视频数据库中提供道路背景。我们研究的问题包括：(1)适合于地理时空检索的视频数据库结构；(2)引入流数据处理的高速视频数据库构建方法；(3)保护隐私的上下文服务的图像处理方法；(4)基于电信环境的可扩展上下文图像提供方法。利用这些技术问题，可以为新的上下文感知服务系统提供前景。

It is now possible to develop a system to share onboard video recordings with mobile camera, since mobile devices such as smart phones and tablet PCs etc. are commonly used and high speed wireless communication such as Wi-Fi is widely available. Our research tried to solve following technical issues in constructing more qualified friendly context services. We will report the results of our research in order to provide road context from retrieving a large amount of UGC styled collecting videos databases immediately. The issues we address include (1) Video database structure suitable for geo-spatial temporal retrievals, (2) High-speed video database construction method introducing stream data processing, (3) Image processing method for privacy preserving context services, (4) Scalable context image supply method depend on telecommunication environment. And using these technical issues, we can get prospects for a new context aware service system.