Title :
Modeling and querying videos by content trajectories
Author :
Aghari, Z. ; Kaneko, Kunihiko ; Makinouchi, Akifumi
Author_Institution :
Dept. of Intelligent Syst., Kyushu Univ., Fukuoka, Japan
Abstract :
We present a hierarchical approach to model video shots in three levels: object level (OL), frame level (FL), and shot level (SL). The model captures the visual features of individual objects at OL, visual-spatio-temporal (VST) relationships between objects at FL, and time-varying visual features and time-varying VST relationships at SL. We call the combination of the time-varying visual features and the time-varying VST relationships a content trajectory that is used to represent and index a video shot. A novel query interface, that allows users to describe queries, by sketch and feature specification, is presented. Our experimental results prove the effectiveness of modeling and querying video shots using the content trajectory approach
Keywords :
content-based retrieval; database indexing; multimedia databases; video databases; content based retrieval; content trajectories; database indexing; experimental results; frame level; object level; shot level; time-varying visual features; video database; video querying; video shot modeling; Cameras; Data mining; Event detection; Histograms; Layout; Object detection; Object oriented modeling; Object segmentation; Streaming media; Videos;
Conference_Titel :
Multimedia and Expo, 2000. ICME 2000. 2000 IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-6536-4
DOI :
10.1109/ICME.2000.869639
