How do I compare if two objects look similar?

So I am worKing on a VR project game kinda thing where the user will be shown an image of something (like a car) before it disappears and the user must use the VR controller to draw it in front of them. Looking at documentation and questions on here it seems as if LineRenderer is the best way to draw it but what can I use to check if the drawn model and the shown model look similar (ie the user has correctly drawn a car)? I understand this isn’t going to be simple. I was thinking if somehow I spawn the original model enlarged over the top of the users model and totally transparent so it can’t be seen and check if the users model is contained within the original, meaning they have it roughly similar in shape? Am I along the right lines or far off?

Hi. Did you resolve your problem?

It all depends how precise you want to be. You could define boundaries where the lines need to be in our out. But more important, should the kinda correct answer be automaticly been created? This would be somethink where you enter the terrain of image recognition algorithms. You could render out the user input as texture and let these algorythms compare them.

All the Best