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AI-TRAFFIC
AI-ROAD 3D
Be careful that the lines are drawn with accuracy, since an error in this step may negatively affect
the results of the calibration.
Fig. 73: Draw vertical lines to define the road
AI-ROAD 3D: 3D calibration – Step 2 - Case B
Draw the parallel lines crossroad (red)
Fig. 74: Draw crossroad lines for calibration
In some cases are no vertical parallel lines available in the scene; thus, the plugin must provide an
alternative way to complete the calibration. As shown in the image on the right, in this case you can use
parallel lines crossroad to perform the step 2 of the calibration. The easier way is to pause the video stream
and to use the back of two vehicles as a reference; of course, if crossroad lines are available, it is better to
use them.
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