Crowd counting is the task of estimating the number of people in an image (or images). Whenever there is a big event, organizers of the event tend to exaggerate the crowd size, and competitors try to minimize it. It would be helpful to have an accurate estimate.

Experiment with a crowd counting computer vision implementation such as one found at https://github.com/topics/crowd-counting. How well does it work

Contrast the computer vision approach with an approach described in the articel “Quantifying crowd size with mobile phone and Twitter data” (https:// royalsocietypublishing.org/doi/10.1098/rsos.150162). Crowd counting has societal benefits in traffic control and public safety, but it also raises some ethical issues. Discuss.