The requirements for the cameras that will work with the Stopped vehicle detection module are listed in the following table:
Resolution: not less than 720х480- Resolution should be at least 720x480 pixels
- Fps: not less than 15, recommended fps is 25
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Camera must - Camera should be rigidly fixed to avoid shaking
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Scene and camera angle |
Cars in the video image should be visually distinguishable- Recommended height of camera mounting: 6-
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7m- 7 m
- Recommended angle of camera mounting:
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20-30 degrees correspondingly - no more than 30 degrees relative to the horizontal line
- It is recommended to mount camera above the middle of analyzed traffic area
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Efficiency of detection working is reducing if mounted at brink - side of the traffic area, the efficiency of the detection algorithm decreases
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| Object images | - The vehicles and their elements, for example, a radiator grill, should be visually distinguishable on the video image
- It is recommended to use the Zoom-In/Zoom-Out camera functions to improve
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the response - the response reflection from vehicles on
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a at details crearly Objects image | Available car size is from 0.1 to 0.8 from the size of recognizing areaMaximum allowable size of a car relatively the frame size is 35% from the frame height and 27% from the frame width| Lighting requirements | - Objects should be visually separated from the background and from each other.
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Minimum allowable size of a car relatively the frame size is 7% from the frame height and 6% from the frame width
