A Boosting Approach to Visual Servo-Control of an Underwater Robot

Junaed Sattar, Gregory Dudek

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

We present an application of the ensemble learning algorithm in the area of visual tracking and servoing. In particular, we investigate an approach based on the Boosting technique for robust visual tracking of color objects in an underwater environment. To this end, we use AdaBoost, the most common variant of the Boosting algorithm, to select a number of low-complexity but moderately accurate color feature trackers and we combine their outputs. From a significantly large number of "weak" color trackers, the training process selects those which exhibit reasonably good performance (in terms of mistracking and false positives), and assigns positive weights to these trackers. The tracking process applies these trackers on the input video frames, and the final tracker output is chosen based on the weights of the final array of trackers. By using computationally inexpensive but somewhat accurate trackers as members of the ensemble, the system is able to run at quasi-real time, and thus, is deployable on-board our underwater robot. We present quantitative cross-validation results of our visual tracker, and conclude by pointing out some difficulties faced and subsequent shortcomings in the experiments we performed, along with directions of future research on the area of ensemble tracking in real-time.

Original languageEnglish (US)
Title of host publicationExperimental Robotics - The Eleventh International Symposium
Pages417-428
Number of pages12
DOIs
StatePublished - Dec 1 2009
Event11th International Symposium on Experimental Robotics, ISER 2008 - Athens, Greece
Duration: Jul 13 2008Jul 16 2008

Publication series

NameSpringer Tracts in Advanced Robotics
Volume54
ISSN (Print)1610-7438
ISSN (Electronic)1610-742X

Other

Other11th International Symposium on Experimental Robotics, ISER 2008
CountryGreece
CityAthens
Period7/13/087/16/08

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Sattar, J., & Dudek, G. (2009). A Boosting Approach to Visual Servo-Control of an Underwater Robot. In Experimental Robotics - The Eleventh International Symposium (pp. 417-428). (Springer Tracts in Advanced Robotics; Vol. 54). https://doi.org/10.1007/978-3-642-00196-3_48