Paper Abstract and Keywords |
Presentation |
2010-03-04 11:30
Improving Hypothesis Management and Considering Sensor Information Loss for Scenario-type Hypothesis Object Tracking Masakazu Murata, Yoshiaki Taniguchi, Go Hasegawa, Hirotaka Nakano (Osaka Univ.) IN2009-170 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We have proposed an object tracking method called Scenario-type Hypothesis Tracking. The proposed method divides a wide monitoring region into multiple closed micro cells, and pairs of infrared sensors are placed at borders among micro cells to detect objects and their moving directions. The sensor information is gathered to a tracking server through wireless networks, and the tracking server maintains virtual micro cells and virtual objects which indicate a variety of hypotheses of object trajectory. Virtual objects are generated, moved, and deleted in virtual micro cells appropriately based on sensor information and behavior of other virtual objects. The number of virtual objects greatly increases when the number of micro cells and the object density increase, which results in the increase of system load. In this report, we modify the generation method of virtual objects to decrease the number of generated virtual objects while keeping object tracking accuracy. In addition, we extend our method to handle losses of sensor information due to packet loss, failure of sensing, and functional limitation of sensors. Through simulation evaluations, we confirm that the number of generated virtual objects is decreased by about 25% while keeping object tracking accuracy when the tracking server fails to gather sensor information. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
sensor network / object tracking / scenario-type hypothesis / virtual object / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 109, no. 449, IN2009-170, pp. 157-162, March 2010. |
Paper # |
IN2009-170 |
Date of Issue |
2010-02-25 (IN) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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IN2009-170 |
Conference Information |
Committee |
NS IN |
Conference Date |
2010-03-04 - 2010-03-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Miyazaki Phoenix Seagaia Resort (Miyazaki) |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
General, NS+IN workshop (March 4-5) |
Paper Information |
Registration To |
IN |
Conference Code |
2010-03-NS-IN |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Improving Hypothesis Management and Considering Sensor Information Loss for Scenario-type Hypothesis Object Tracking |
Sub Title (in English) |
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sensor network |
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object tracking |
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scenario-type hypothesis |
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virtual object |
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1st Author's Name |
Masakazu Murata |
1st Author's Affiliation |
Osaka University (Osaka Univ.) |
2nd Author's Name |
Yoshiaki Taniguchi |
2nd Author's Affiliation |
Osaka University (Osaka Univ.) |
3rd Author's Name |
Go Hasegawa |
3rd Author's Affiliation |
Osaka University (Osaka Univ.) |
4th Author's Name |
Hirotaka Nakano |
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Osaka University (Osaka Univ.) |
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Speaker |
Author-1 |
Date Time |
2010-03-04 11:30:00 |
Presentation Time |
20 minutes |
Registration for |
IN |
Paper # |
IN2009-170 |
Volume (vol) |
vol.109 |
Number (no) |
no.449 |
Page |
pp.157-162 |
#Pages |
6 |
Date of Issue |
2010-02-25 (IN) |