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Motion object tracking algorithm using an improved geometric active contour model and Kalman filtering(PDF)

长安大学学报(自然科学版)[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2011年03期
Page:
90-94
Research Field:
Publishing date:
2011-06-30

Info

Title:
Motion object tracking algorithm using an improved geometric active contour model and Kalman filtering
Author(s):
LI Han1 WU Qi-sheng2 LUO Xiang-long1
1. School of Information Engineering, Chang'an University, Xi'an 710064, Shaanxi, China; 2. School of Electronic and Control Engineering, Chang'an University, Xi'an 710064, Shaanxi, China
Keywords:
pattern recognition motion object tracking geometric active contour level set method Kalman filtering
PACS:
TP391.41
DOI:
-
Abstract:
In order to overcome the initialization and inaccuracy problem of geometric active contour model in tracking, an improved method is proposed. The statistical feature of inter-frame difference is used to detect automatically the moving area of vehicles in a video sequence. Then this rectangle region of objects is set as the initialization of geometric active contour to fit the edge of objects, which can simplify the initialization. Lastly, an accurate contour of vehicles can be used for Kalman filtering tracking. Taking bounding rectangles as initial curve will simplify the initialization and improve the convergence rate. Through introducing an enforcement item to the level set function, the fitted contour can converge to concave edges, which also increase the convergence performance. The accurate contours can improve the tracking efficiency. 1 tab, 4 figs, 11 refs.

References:

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Memo

Memo:
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Last Update: 2011-06-30