I'm trying to create a service which compares 2 human poses as a part of my main application. I managed to plot skeletons on the images using OpenPose. A detailed explanation of my question: I have 2 images of 2 different people. I ran those images through OpenPose to generate the output with the skeleton on it. Now I want to compare the two images. I want to know what basis I can choose for comparing the two images. By comparing, I mean figures so that I can calculate a threshold value. Also, if this can somehow be placed on a coordinate plane and I could get to know the coordinate units of the different body parts to draw out the differences, that would be great. I also want to calculate a score based on the similarity between the two poses but first I need to know the basis of comparison and then this can be figured out eventually.