I am developing one mobile app to Measure the Human body height from camera.
I found pose-detection to find the body key points.
Using this I want to identify the human body height.
I used @tensorflow/tfjs-react-native, @tensorflow-models/posenet.
I got key points details.

I don’t have idea about how to calculate the human height from pose net key points.

I guess we need to identify distance of body(object) from camera. But I don’t know how to identify the distance from here.

Can anybody help me?