Spatiotemporal Lifelines in Support of Video Queries
DEXA '01 Proceedings of the 12th International Workshop on Database and Expert Systems Applications
Hierarchical browsing and search of large image databases
IEEE Transactions on Image Processing
Modeling and comparing spatiotemporal events
dg.o '04 Proceedings of the 2004 annual national conference on Digital government research
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Video query systems have been used increasingly for both business and personal applications. Many applications for video data involve stationary cameras, resulting in a stable background and moving objects in the foreground. The movements of these objects can be extracted to form lifelines using techniques such as those developed in our lab. Our current task is to organize these lifelines and their attributes in a way that will make them easy to query, even by inexperienced users. In order to accomplish this, we have employed data cubes and other hierarchical measures, as well as new metadata structures. After a brief review of our ongoing work with lifelines, we will discuss these additional components of our query system in more depth. Our comprehensive system has the potential to change the way in which video databases are organized and queried.