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How can I calculate my car's speed from a dash cam video?

asked 2017-04-13 11:08:40 -0500

I have a dash camera on my windshield, and I'm wondering if there is any way to determine my vehicle's speed using the video footage from the dash cam. Please help!

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berak gravatar imageberak ( 2017-04-13 12:24:54 -0500 )edit

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answered 2017-04-14 04:42:23 -0500

Possible approach you can implement

  1. For your video input, grab single frames
  2. Calculate keypoints in every frame
  3. Match keypoints in subsequent frames and calculate the optical flow
  4. Relate the optical flow values to actual speed values (will need some kind of calibration for the car I guess)
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Asked: 2017-04-13 11:08:40 -0500

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Last updated: Apr 14 '17