I have a simple paper with
parallel grid lines and I know the height of the observer from the ground level.
Now when I snap the picture with my camera, the effect i get is what is seen in the image below. Even if the lines are parallel, the perception is that they converge in the middle.
When i draw lines on the lines of the page, i get angles.
Is it possible that given the information below:
- The height of the observer from the ground
- The angles generated
That I can calculate the distance from the observer to this "convergance" point? Is there already some formula for this?
The goal is this: If there is some generic formula to calculate the distance from the observer to the convergence point, then I can use this formula in simulation program involving the calculation of small distances.