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논문 기본 정보

자료유형
학술저널
저자정보
TaeSeok Jin (동서대학교) HanHo Tack (진주대학교)
저널정보
한국지능시스템학회 INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGENT SYSTEMS INTERNATIONAL JOURNAL of FUZZY LOGIC and INTELLIGENT SYSTEMS Vol.10 No.2
발행연도
2010.6
수록면
101 - 106 (6page)

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초록· 키워드

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We propose an approach to estimate the real-time moving trajectory of an object in this paper. The object’s position is obtained from the image data of a CCD camera, while a state estimator predicts the linear and angular velocities of the moving object. To overcome the uncertainties and noises residing in the input data, a Extended Kalman Filter(EKF) and neural networks are utilized cooperatively. Since the EKF needs to approximate a nonlinear system into a linear model in order to estimate the states, there still exist errors as well as uncertainties. To resolve this problem, in this approach the Kohonen networks, which have a high adaptability to the memory of the inputoutput relationship, are utilized for the nonlinear region. In addition to this, the Kohonen network, as a sort of neural network, can effectively adapt to the dynamic variations and become robust against noises. This approach is derived from the observation that the Kohonen network is a type of self-organized map and is spatially oriented, which makes it suitable for determining the trajectories of moving objects. The superiority of the proposed algorithm compared with the EKF is demonstrated through real experiments.

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Abstract
1. Introduction
2. Parameter Learning
3. State Estimation by Kalman Filter
4. Self-Organized Map
5. Experiments
6. Conclusions
References

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UCI(KEPA) : I410-ECN-0101-2010-028-002422941