DMCA
Curve-Based Representation of Moving Object Trajectories (2004)
| Venue: | IEEE International Database Engineering and Applications Symposium |
| Citations: | 7 - 4 self |
BibTeX
@INPROCEEDINGS{Yu04curve-basedrepresentation,
author = {Byunggu Yu and Seon Ho Kim and Thomas Bailey},
title = {Curve-Based Representation of Moving Object Trajectories},
booktitle = {IEEE International Database Engineering and Applications Symposium},
year = {2004},
pages = {419--425}
}
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Abstract
In recent years, many emerging database applications deal with continuously moving data objects -- each data object moves continuously and frequently reports its current location, moving direction, and speed to the database server. A database server for these applications keeps track of the trajectories of individual moving objects and processes queries referring to the past or future trajectories. Related techniques view a moving object trajectory as a sequence of connected line segments. However, most natural moving objects, such as airplanes, vessels, and vehicles, draw a smooth trajectory with no angles. This paper presents our curve-based trajectory representation models. The presented results show that the curve-based models provide much more accurate trajectories than the line-based models when we have the same amount of data (same number of reported points). In other words, the curve-based models require a smaller amount of data while providing the same accuracy in trajectory representation.
Keyphrases
object trajectory curve-based representation curve-based model database server trajectory representation connected line segment database application accurate trajectory future trajectory curve-based trajectory representation model current location recent year presented result smooth trajectory reported point line-based model data object
