Successive Observations of Trajectories of Vehicles with Image Data by Plural Cameras and with GPS Positioning Data
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- AKAHANE Hirokazu
- Department of Civil & Environ. Eng., Chiba Institute of Technology
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- KATORI Itsuki
- School of Civil & Environ. Eng., Chiba Institute of Technology
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- UEHATA Junya
- Central Nippon Highway Engineering Tokyo Co., Ltd.
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- OMIYA Hiroyuki
- Road Planning Co., Ltd.
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- NONAKA Yasuhiro
- Road Planning Co., Ltd.
Bibliographic Information
- Other Title
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- 複数カメラによる画像データと GPS 測位データによる車両走行軌跡の連続推定
Abstract
<p>In this study, we improved the estimation system for vehicle trajectories to achieve both long observation ranges and high accuracy by using multiple video cameras installed adjacent to each other along roads. First, we applied a two-dimensional projective transformation formula to limit the control point setting on the road surfaces by separating the projection of the tracking point on the triangles that approximate the road surface and correcting the position coordinates for the gap between the tracking point and the triangles. Additionally, by setting the control points based on the screen coordinate values of the probe vehicle and the GPS positioning values, the road surface approximation triangle can be arranged evenly and efficiently. We set 734 road surface approximation triangles in the observation section of about 820 meters of the expressway, and the average Euclidean range was 0.1 meters, and the RMSE of the traveling speed was 0.5 km/h based on the positioning results of the probe vehicle.</p>
Journal
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- JSTE Journal of Traffic Engineering
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JSTE Journal of Traffic Engineering 10 (1), A_122-A_131, 2024-02-01
Japan Society of Traffic Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390017676954448640
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- ISSN
- 21872929
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- Text Lang
- ja
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- Data Source
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- JaLC
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- Abstract License Flag
- Disallowed