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NTIS 바로가기한국측량학회지 = Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography, v.36 no.6, 2018년, pp.535 - 544
홍송표 (Dept. of GIS Engineering, Namseoul University) , 김의명 (Dept. of Spatial Information Engineering, Namseoul University)
Autonomous driving can be limited by only using sensors if the sensor is blocked by sudden changes in surrounding environments or large features such as heavy vehicles. In order to overcome the limitations, the precise road-map has been used additionally. This study was conducted to segment and clas...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
머신러닝의 장점은? | 머신러닝(machine learning)은 학습데이터(training data)를 이용하여 새로운 데이터가 주어졌을 때 이를 예측하는 기법으로서 수학적 모델을 이용한 기법과 달리 데이터의 특성 및 임계값을 고려할 필요가 상대적으로 적은 장점이 있다(Jeong and Lee, 2016; Hong et al., 2018). | |
머신러닝이란 무엇인가? | 머신러닝(machine learning)은 학습데이터(training data)를 이용하여 새로운 데이터가 주어졌을 때 이를 예측하는 기법으로서 수학적 모델을 이용한 기법과 달리 데이터의 특성 및 임계값을 고려할 필요가 상대적으로 적은 장점이 있다(Jeong and Lee, 2016; Hong et al., 2018). | |
지상 라이다로 취득한 자료를 이상점 제거 및 다운샘플링 해야하는 이유는? | 지상 MMS에 탑재된 지상 라이다는 물리적인 측정한계로 인하여 이상점이 포함되어 있으며, 높은 점밀도로 인하여 자료처리 과정에 많은 시간이 소요된다. 따라서 이상점을 제거하고 데이터의 특성을 잃지 않을 정도로 다운샘플링(down sampling) 할 필요성이 있으며, 도로 외의 불필요한 점을 제거하여야 한다(Hong and Kim, 2017). |
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