As the use of instructional video is becoming a key component of e-learning, there is an increasing need for a distributed system which supports collaborative video annotation and organization. In this paper, the authors construct a distributed environment on the top of NaradaBrokering to support collaborative operations on video material when users are located in different places. The concept of video annotation is enriched, making it a powerful media to improve the instructional video organizing and viewing. With panorama based and interpolation based methods, all related users can annotate or organize videos simultaneously. With these annotations, a video organization structure is consequently built through linking them with other video clips or annotations. Finally, an informal user study was conducted and result shows that this system improves the efficiency of video organizing and viewing and enhances user's participating into the design process with good user experience.
|Original language||English (US)|
|Number of pages||15|
|Journal||International Journal of Distributed Systems and Technologies|
|State||Published - 2010|
Bibliographical noteFunding Information:
This work was supported by National Key Basic Research and Development Program under Grant No. 2006CB303105 and by National Natural Science Foundation of China under GrantNo.60703079.
- Collaborative Operation
- Distributed Teaching Environment
- Sketch Based Interface
- Video Annotation
- Video Organization