Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Extraction of Road Information Based on High Resolution UAV Image Processing for Autonomous Driving Support

자율주행 지원을 위한 고해상도 무인항공 영상처리 기반의 도로정보 추출

  • Lee, Keun-Wang (Department of Multimedia Science, Chungwoon University)
  • 이근왕 (청운대학교 멀티미디어학과)
  • Received : 2017.07.24
  • Accepted : 2017.08.17
  • Published : 2017.08.31
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Abstract

Recently, with the development of autonomous vehicle technology, the importance of precise road maps is increasing. A precise road map is a digital map with lane information, regulations, safety information, and various road facilities. Conventional precise road maps have been tested and developed based on the mobile mapping system (MMS). But they have not been activated due to high introduction costs. However, in the case of unmanned aerial vehicles (UAVs), the application field is continuously increasing. This study tries to extract information through classification of high-resolution UAV images for autonomous driving. Autonomous vehicle test roads were selected as study sites, and high-resolution orthoimages were produced using UAVs. In addition, the utilization of high-resolution orthoimages has been proposed by effectively extracting data for precise road map construction, such as road lines, guards, and machines through image classification. If additional experimentation and verification are performed, the field of UAV image use will be expanded, providing the data to automobile manufacturers and related public and private organizations, and venture companies will contribute to the development of domestic autonomous vehicle technology.

최근 자율주행 자동차 기술의 발전으로 정밀도로지도에 대한 중요성이 증가하고 있다. 정밀도로지도는 차선 정보, 규제 안전 정보, 각종 도로 시설물 등이 표현된 디지털 지도로 MMS(Mobile Mapping System) 기반으로 시험 제작되어 왔지만 이 방법은 고가의 도입비용으로 크게 활성화되지 못하고 있다. 하지만 무인항공기의 경우 적용 분야가 지속적으로 늘어나고 있으며, 이에 대한 연구도 다양한 분야에서 이루어지고 있다. 본 연구에서는 고해상도 무인항공기 영상의 처리를 통해 자율주행에 필요한 차선, 시설물 등의 정보를 추출하고자 하였다. 자율주행 자동차 시험도로를 연구대상지로 선정하고, 무인항공기를 이용하여 고해상도 정사영상을 제작하였다. 기존의 수치지형도와 정밀도로지도의 속성비교를 통해 정밀도로지도 제작을 위한 차선, 중앙분리대, 제어기 등의 추출 항목을 선정하였다. 또한 영상분류를 통해 차선, 중앙분리대, 제어기 등 정밀도로지도 구축을 위한 데이터를 효과적으로 추출함으로써 고해상도 정사영상의 활용성을 제시하였다. 추가적인 실험과 검증을 통해 무인항공기 영상의 이용 분야를 확대할 수 있을 것이며, 구축된 데이터를 자동차 제작사 및 관련 민 관 기관, 벤처 기업 등에 제공한다면 국내 자율주행차 기술 발전에 기여할 것이다.

Keywords

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