Active shape model

Okay kiddo, have you ever played with play dough? Imagine that one of your friends made a bunch of different shapes out of play dough, like circles, squares, and triangles. Now, let's say that you wanted to create a picture using those shapes, but you didn't know how to make them yourself.

That's kind of like what an active shape model does. It's a special computer program that looks at pictures of things, like faces or trees, and creates a bunch of different "shapes" that it thinks are important for that thing. For example, if the active shape model is looking at faces, it might make shapes for the eyes, nose, mouth, and so on.

Now, let's say you want to use the active shape model to find the features on a new picture of a face. The model will first look at the shape of the face to make sure it's similar to other faces it's seen before. Then, it will use its pre-made shapes, like the shapes for the eyes and nose, to find those features on the face. Once it's found all the features, it can do different things with them, like measure how far apart the eyes are or how long the nose is.

Overall, an active shape model is like a tool that helps computers understand what they're looking at in pictures. Just like your friend's play dough shapes, the model makes different shapes for different features so it can find them in new pictures.