What facts can be extracted from the video stream of the surveillance cameras?

In the city, the provider has a lot of public CCTV cameras. Except "to determine whether the fountains are open after the winter," and "how many cars are at the gas station in line" is not yet invented. What other facts can be obtained using computer vision?
March 19th 20 at 08:34
2 answers
March 19th 20 at 08:36
How many people pass under the camera, whether in the field of view, light, snow, cloud cover, seasonal changes in foliage, some weather phenomena (snow, fog).
March 19th 20 at 08:38
To count passing traffic in a public place and sell it to landlords in the surrounding area. The question is, what camera are not put based on this and automate problematic.
Here At uncle talks about the subject.
The question is not to make money, but to learn how to work with cv and get pleasure from the done work. Only just for fun. - Zola_Gutmann commented on March 19th 20 at 08:41
@Zola_Gutmann, to Learn without a purpose to earn - Masturbation, doomed to die in six months - Kaylie19 commented on March 19th 20 at 08:44

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