4 ms·

Can it measure the speed of a car on a video ?

• MaxikCZ 4mo ago
  Same question, same answer: In pixels/second? Sure! What are you trying to accomplish by those questions? Are you genuinely asking, or just baiting? If the former, didnt answers to your previous question make it clear that your question makes less sense than you might assume?
  • maelito 4mo ago
    It's a serious question. I took a few hours to try this range of models to do this task. Online guides recommend to calibrate the size of the image with a "horizon" line and its real physical size. That's quite complicated. I wish new models coupled with LLM would be capable of estimating the size of features on the map, e.g. the size of the car in meters, to be able to derive the speed with a world understanding. But I have found no resource doing this.
• Joel_Mckay 4mo ago
  Global-shutter cameras are fast and expensive, while Doppler radar modules are robust and under $30 these days. Running machine-vision outside in the Sun or Weather can get tricky. There is also a limited supply of BS a firm can shovel before some bystander ends up dead. =3 https://www.bbc.co.uk/news/articles/c07yp02mxyjo https://www.bbc.co.uk/news/articles/c07yp02mxyjo