How to Calculate Height of Android Phone from ground

android android-sensors
Saurav picture Saurav · Jul 3, 2013 · Viewed 11.4k times · Source

I am working on a project in which i have to calculate my device height from ground. I have searched all over the internet but could not find any solution.

Please, Anyone tell me what to do..??

Answer

user2144067 picture user2144067 · Apr 22, 2014

First it has to be clarified, if "height from ground" means altitude in meaning "height from sea level" or you mean, how far the phone is away from the floor, when you have it in your hands.

For the second case:

Like SonicWind states, you could do the trick using the camera.
It would require calibration of the camera and to have a standard object.
Take a picture of the standard object which has to be positioned on the ground with standard zoom.
Recognize the object size - or select it in the picture, and calculate the distance to the object.
-> you have the distance to the ground.

The object might be also your shoes etc. So if the application should be for multiple users, you might allow them to enter their shoe sizes ;)

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