Estimation of Three Mutually Orthogonal Vanishing Points from Edgelets in Road Scenes
Publication: Computing in Civil Engineering 2023
ABSTRACT
Field-of-view calibration is essential for establishing the relationship between 2D image coordinates inside the camera and 3D real-world coordinates of the traffic scene. For many surveillance-based traffic applications, the field-of-view calibration involves precisely extracting the three orthogonal vanishing points. However, many traffic scenes lack parallel lines along all three dominant directions, making it difficult to successfully calibrate using the present methods. This study proposed a novel method for estimating the three mutually orthogonal vanishing points in traffic scenes. To determine the dominant directions of the real-world coordinate frame, this method exploits the visual features of both the road environment and moving vehicles and avoids the need for parameter tuning through trial and error in different scenarios. To evaluate the performance of the proposed method, laboratory tests were conducted. The outcomes demonstrated the potential of the method in traffic scenes with scarce parallel line features.
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Published In
Computing in Civil Engineering 2023
Pages: 150 - 158
History
Published online: Jan 25, 2024
ASCE Technical Topics:
- Calibration
- Cameras
- Engineering fundamentals
- Equipment and machinery
- Frames
- Highway and road management
- Highway transportation
- Highways and roads
- Infrastructure
- Laboratory tests
- Measurement (by type)
- Structural engineering
- Structural members
- Structural systems
- Tests (by type)
- Traffic analysis
- Traffic engineering
- Traffic management
- Traffic surveillance
- Transportation engineering
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