body height measurement and length of arm with OpenCV from a single still image capture.
hi, I'm working for my final year project which required me to develop python coding to measure height of human and length of arm using single still image capture on raspberry pi camera with known reference distance from the camera to the subject and also known height distance of the camera from the floor.
Problem rising right now is how to set the pixelpermetrix ratio. should i use a known size object and use it as a reference point?
how to contour a body precisely? how to measure human height and length of arms only?
what have you tried, so far ?
currently, I'm using this bounding box technique to measure height only based on object reference. the result isn't very accurate and i have no idea how to measure arm length at the same time.
you don't have to do this at the same time (or with the same algo, you could use e.g. openpose to measure the arms)
if you can't use a ref object at the same distance, you'll unfortunately have to do a full camera calibration, to get the focal length
please explain