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자료유형
학술대회자료
저자정보
저널정보
한국자동차공학회 한국자동차공학회 Workshop 한국자동차공학회 2005년 워크샵(AVEC)
발행연도
2005.12
수록면
97 - 104 (8page)

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초록· 키워드

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This paper describes e stereo vision based obstacle detection algorithm. which is the core component of advanced driver assistance system incorporating lane departure warning, forward collision warning and avoidance. The proposed vision system recognizes the road lane, on which host vehicle is traveling, by template matching on the birdland eye view of forward scene. The recognition of road lane uses an assumption that a lane marking is a pair of neighboring rising and falling edge and a road lane is a pair of lane marking with a fixed distance. ROI (Region Of Interest) is established according to the recognized ego-lane because preceding vehicle on the ego-lane is expected to be a potential threat to host vehicle After the establishment of ROI. vision system generates disparity histogram by feature based stereo matching. Because the preceding vehicle has a large amount of vertical edges with the same disparity, it forms a peak m the disparity histogram. Consequently, the preceding vehicle can be detectable by simple thresholding. The threshold of peak detection IS designed to vary with respect to disparity. i.e. distance, considering the fact that obstacle appears smaller as its distance becomes further Detected peaks arc verified by the comparison of edge and color between left and right image. Ego-laue based ROI establishment and feature based stereo matching drastically reduce computational burden Furthermore, disparity histogram based obstacle detection is proved to be robust because it captures big picture successfully ignoring the details. The effect of ego-lane based ROI and adaptive thresholding is verified by experiments with real vehicle.

목차

1. INTRODUCTION
2. SYSTEM ARCHITECTURE
3. ROI ESTABLISHMENT
4. STEREO MATCHING
5. DETECTION OF OBSTACLE DISTANCE
6. EXPERIMENTAL RESULT
7. CONCLUSION
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