How would you find the height of objects given an image?

image-processing computer-vision photogrammetry
Laz picture Laz · May 18, 2010 · Viewed 46.3k times · Source

This isn't exactly a programming question exactly. I just want to know what your approach would be to a common problem in Digital image processing.

Let's say you have an image of a few trees in say jpg format. How would you go about finding the heights of each of these trees? The photo is the only input you have.

I want to know the approaches you have not to code. So it doesn't matter if your answers are vague, or non DIP-ish.

Small correction : The height need not be the actual height of the tree. The height can be taken to any scale. But should be consistent to all objects in the pic.

Answer

Neil N picture Neil N · May 18, 2010

Yes it is possible. What you are describing has an entire industry around it, called Photogrammetry

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