A question about PCK threshold computation.

cbsudux / Human-Pose-Estimation-101

Basics of 2D and 3D Human Pose Estimation.

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A question about PCK threshold computation. #2

Open wolterlw opened 4 years ago

wolterlw commented 4 years ago

How do we compute the torso diameter in 2d to get the threshold? Depending on the person's pose the projected torso length is different. Sorry for a basic question, but could you elaborate on that?

ben-xD commented 4 years ago

I have this confusion too. Torso's are not circular, so they don't have a diameter. At best, we can take the 2 shoulder and 2 hip joints, to make a quadrilaterals. Here is a helpful website, because I forgot what a quadrilateral is 😆: https://www.kidsmathgamesonline.com/pictures/shapes/quadrilaterals.html

ben-xD commented 4 years ago

It is defined in this paper: Simple Multi-Resolution Representation Learning for Human Pose Estimation https://arxiv.org/abs/2004.06366

torso_diameter = right_hip - left_shoulder