I have a stereo camera,
I want to figure out the angle of an object with respect to ground.
Please see the attached image.
I know the length of the line lp, hp and bc. What I want to do is to figure out the angle bac. I know if I can find either ab or ac; I can use trigonometry to solve for angel bac. But please edify me for how can I find this.
Any suggestions or help is greatly appreciated.