I was given this question on a job interview and think I really messed up. I was wondering how others would go about it so I could learn from this experience.
You have one image from a surveillance video located at an airport which includes line of people waiting for check-in. You have to assess if the line is big/crowded and therefore additional clerks are necessary. You can assume anything that may help your answer. What would you do?
I told them I would try to:
- Segment the area containing people from the rest by edge detection
- Use assumptions on body contour such as relative height/width to denoise unwanted edges
- Use color knowledge; but then they asked how to do that and I didn't know