how to recognize the object I detect in video frames is a people or a car.

Question

I have a problem to detect object in images or video frames.

I have a task that is detect some people or something who enter into the sight of web camera, and then my system will be alarm.

Next step is recognize which kind of thing the object is, in this phase I know use Hough transform to detect line, circle, even rectangle. But when a people come into the sight of camera, people's profile is more complex than line, circle and rectangle. How can i recognize the object is people not a car.

I need help to know that. thanks in advance

Answer 1

I suggest you look at the paper "Histograms of Oriented Gradients for Human Detection" by Dalal and Triggs. They used Histograms of Oriented Gradients to detect humans in images

Answer 2

I think one method is to use Bayesian analysis on your image and see how that matches with a database of known images. I believe some people run a wavelet transform to emphasize more noticeable features.