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A New Height Estimation Scheme Using Geometric Information of Stereo Camera based on Pan/tilt control  

Ko Jung-Hwan (광운대학교 차세대 3D 디스플레이 연구센터)
Kim Eun-Soo (광운대학교 차세대 3D 디스플레이 연구센터)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.31, no.2C, 2006 , pp. 156-165 More about this Journal
Abstract
In this paper, a new intelligent moving target tracking and surveillance system basing on the pan/tilt-embedded stereo camera system is suggested and implemented. In the proposed system, once the face area of a target is detected from the input stereo image by using a YCbCr color model and phase-type correlation scheme and then, using this data as well as the geometric information of the tracking system, the distance and 3D information of the target are effectively extracted in real-time. Basing on these extracted data the pan/tilted-imbedded stereo camera system is adaptively controlled and as a result, the proposed system can track the target adaptively under the various circumstance of the target. From some experiments using 480 frames of the test input stereo image, it is analyzed that a standard variation between the measured and computed the estimated target's height and an error ratio between the measured and computed 3D coordinate values of the target is also kept to be very low value of 1.03 and 1.18$\%$ on average, respectively. From these good experimental results a possibility of implementing a new real-time intelligent stereo target tracking and surveillance system using the proposed scheme is finally suggested.
Keywords
surveillance; height estimation; pan/tilt; stereo camera; face detection;
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Times Cited By KSCI : 1  (Citation Analysis)
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