how to recognize the kind of object we intrest in picture

Question

this is a picture of a dog's contour and a horse's contour

how to make computer know it is a horse or a dog or a person.

Answer 1

That's a difficult question.

You should research computer vision.

I would think the method would be something like:

• Find edges (just image processsing)
• Trace shapes (not sure how to go about doing that)
• Pass to neural network for classification.

Of course, designing and training the network is not exactly a simple operation..

Answer 2

this will help http://people.csail.mit.edu/celiu/pdfs/SIFTflow.pdf