Trajectory-based video retrieval by string matching

This paper proposes a trajectory-based video retrieval system to retrieve desired videos from a video database through string matching. First, in order to represent each trajectory, a hybrid technique is proposed for representing its semantic meanings and geometrical properties. At this scheme, we u...

Full description

Saved in:
Bibliographic Details
Main Authors: HSIEH, Junwei, YU, Shang-Li, CHEN, Yung-Sheng
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Artificial intelligence
Cameras
Computer science
control theory
systems
Content based retrieval
Data mining
Exact sciences and technology
Indexing
Information retrieval
Information systems. Data bases
Memory organisation. Data processing
Pattern recognition. Digital image processing. Computational geometry
Position measurement
Sampling methods
Set theory
Shape
Software
Spatial databases
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper proposes a trajectory-based video retrieval system to retrieve desired videos from a video database through string matching. First, in order to represent each trajectory, a hybrid technique is proposed for representing its semantic meanings and geometrical properties. At this scheme, we use the Bezier basis functions to interpolate some lost control points of each represented trajectory. Then, the distance between any two trajectories can be measured by comparing the positions of sampling points extracted along their Bezier approximations. In addition, this hybrid method uses a novel labeling technique for converting a trajectory into a string. This string representation can give more semantic information in interpreting a trajectory and make important improvements in video classification. More importantly, the problem of partial matching will become easy and can be efficiently solved by a string matching technique. Experimental results have proved the superiority of our proposed method.
ISSN:1522-4880
2381-8549
DOI:10.1109/ICIP.2004.1421544