The accepted answer to the question, How do I calculate the distance of an object in a photo?, refers to sensor height.
What is sensor height and how do find/calculate it in this context? I'm using a LG G2 cell phone for this, and this is the best place for its camera stats I could find: https://www.phonearena.com/phones/LG-G2_id7969.
My current understanding leads me to believe that is the camera sensor size. In the previous link, I was led to the Optical format article at Wikipedia, which would then make the sensor size .09" or just over 2mm. Except when I use that my test pictures are way off and I'm not that bad at measuring things. I would appreciate any help.