A data model and data structures for moving objects databases
SIGMOD '00 Proceedings of the 2000 ACM SIGMOD international conference on Management of data
A foundation for representing and querying moving objects
ACM Transactions on Database Systems (TODS)
Introduction to Modern Information Retrieval
Introduction to Modern Information Retrieval
Efficient Retrieval of Similar Time Sequences Under Time Warping
ICDE '98 Proceedings of the Fourteenth International Conference on Data Engineering
An Index-Based Approach for Similarity Search Supporting Time Warping in Large Sequence Databases
Proceedings of the 17th International Conference on Data Engineering
Efficient Searches for Similar Subsequences of Different Lengths in Sequence Databases
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Modeling of video spatial relationships in an object database management system
IW-MMDBMS '96 Proceedings of the 1996 International Workshop on Multi-Media Database Management Systems (IW-MMDBMS '96)
Trajectory representation using Gabor features for motion-based video retrieval
Pattern Recognition Letters
Discovering tactics in broadcast sports video with trajectories
Proceedings of the First International Conference on Internet Multimedia Computing and Service
The state of the art in image and video retrieval
CIVR'03 Proceedings of the 2nd international conference on Image and video retrieval
An invariant representation for matching trajectories across uncalibrated video streams
CIVR'05 Proceedings of the 4th international conference on Image and Video Retrieval
Markov random fields for sketch based video retrieval
Proceedings of the 3rd ACM conference on International conference on multimedia retrieval
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Moving objects' trajectories play an important role in doing content-based retrieval in video databases. In this paper, we propose a new k-warping distance algorithm which modifies the existing time warping distance algorithm by permitting up to k replications for an arbitrary motion of a query trajectory to measure the similarity between two trajectories. Based on our k-warping distance algorithm, we also propose a new similar sub-trajectory retrieval scheme for efficient retrieval on moving objects' trajectories in video databases. Our scheme can support multiple properties including direction, distance, and time and can provide the approximate matching that is superior to the exact matching. As its application, we implement the Content-based Soccer Video Retrieval (CSVR) system. Finally, we show from our experiment that our scheme outperforms Li's scheme (no-warping) and Shan's scheme (infinite-warping) in terms of precision and recall measures.