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http://dx.doi.org/10.7848/ksgpc.2021.39.6.587

Development of Multi-Camera based Mobile Mapping System for HD Map Production  

Hong, Ju Seok (Dept. of Geoinformatics, University of Seoul and TI-Lab Inc.)
Shin, Jin Soo (Dept. of Geoinformatics, University of Seoul and TI-Lab Inc.)
Shin, Dae Man (TI-Lab Inc.)
Publication Information
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography / v.39, no.6, 2021 , pp. 587-598 More about this Journal
Abstract
This study aims to develop a multi-camera based MMS (Mobile Mapping System) technology for building a HD (High Definition) map for autonomous driving and for quick update. To replace expensive lidar sensors and reduce long processing times, we intend to develop a low-cost and efficient MMS by applying multiple cameras and real-time data pre-processing. To this end, multi-camera storage technology development, multi-camera time synchronization technology development, and MMS prototype development were performed. We developed a storage module for real-time JPG compression of high-speed images acquired from multiple cameras, and developed an event signal and GNSS (Global Navigation Satellite System) time server-based synchronization method to record the exposure time multiple images taken in real time. And based on the requirements of each sector, MMS was designed and prototypes were produced. Finally, to verify the performance of the manufactured multi-camera-based MMS, data were acquired from an actual 1,000 km road and quantitative evaluation was performed. As a result of the evaluation, the time synchronization performance was less than 1/1000 second, and the position accuracy of the point cloud obtained through SFM (Structure from Motion) image processing was around 5 cm. Through the evaluation results, it was found that the multi-camera based MMS technology developed in this study showed the performance that satisfies the criteria for building a HD map.
Keywords
Mobile Mapping System; HD Map; Multi-Camera; Time Synchronization;
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Times Cited By KSCI : 1  (Citation Analysis)
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