Information about pattern recognition tasks

Question

Artificial intelligence

Interested in books, articles about the problems of pattern recognition in the image. Of course, there is Google and there is something, but I'm more interested in the stage when, after determining the boundaries of an object, to understand what kind of object it is, for example, there are several shapes in the picture: a triangle, a circle and a square, how to select only a square, it's probably very simple . Please advise what to read or what examples are there

Answer 1

For starters, this is probably www.lektorium.tv/course/22847
Then you google for the algorithms that are mentioned in this course. Most of them are already implemented in OpenCV.
Then you fix it with practice robocraft.ru/page/opencv