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Traffic Data Acquisition

Real-world traffic data acquisition and establishment of data processing technique are ongoing so as to extract the foreseeable critical parameter combination and range. These traffic data are acquired utilizing instrumented vehicle and fixed camera.

Instrumented vehicles

3D point cloud data is collected using sensors

Fixed camera

Fixed camera 3D images

Traffic data acquisition aims to analyze trajectories of ego and surrounding vehicles and to define vehicle motion parameter ranges for logical scenarios.

Ego and surrounding vehicles

Traffic data acquisition utilizing instrumented vehicles

Specification

  • Data acquisition system A
    -LiDAR (LUX)
    -Line Sensor

  • Data acquisition system B
    -LiDAR (Velodyne) × 4

Specification

Trajectory analysis

  • [Example1]

    Example1
  • [Example2]

    Example2
  • [Example3]

    Example3

Traffic data example

Traffic data acquisition by fixed cameras

Specification

  • Traffic data collection at typically busy junctions

  • Computer Graphics (CG) pre-study

Specification

Trajectory analysis

  • Processed trajectories were verified by reference car

  • Required longitudinal precision <0.5m

  • Required lateral precision <0.2m
Recorded image

Fixed camera and reference data (X-Y)

Fixed camera and reference data (X-Y)

Traffic data example