Multi-Video-camera based 3D Motion Capturing System and Construction of Spatio-temporal Database

在下一代电视广播系统中，基于新技术的电视节目，如一个事件（体育比赛等）的多频道广播将是可能的。本研究主要针对多摄影机资料流中的三维运动侦测，以及建立运动资料库作为分析结果的方法。该技术将有助于“增值”广播节目的发展，观众可以享受各种（修改）的内容，根据他/她的喜好。为了实现这一点，作者的小组设计和构建了一个试点模型的多摄像机的运动捕捉系统。在该系统中，多个视频流从不同的方向被同时检测到，并存储到存储设备不压缩。软件探索的物理和逻辑的时间周期在真实的时间的方式，并建立索引依赖于内容自动。

In the next generation TV broadcasting system, new technology based TV programs such as multi-channel broadcasting for one event (sport games etc,) will be possible. This research is focusing on 3D motion detection form multi-video-camera data streams, and the method to construct "motion database" as the result of video analysis. This technology will contribute to the development of "Value-added" broadcasting programs, in which viewer can enjoy various (modified) contents depending on his/her favorite.To achieve this, the authors' group designed and constructed a pilot model of multi-camera based motion capturing system. In the system, several video streams are detected from different orientations simultaneously and stored into storage devices without compression The software explores physical and logical time-period in real time way, and builds indices depending on the contents automatically.