How to find 3D coordinates of point in 2D image?

I want to find the three dimensional coordinates of 2D image by two camera.So i want to know the geometry which used in Matlab for solving this.

[Meera chandran]

Did you find any solutiomn for this?

Answer 1

[Florian Morsch]

You can take a look at https://de.mathworks.com/help/vision/ug/stereo-camera-calibrator-app.html

If you want to know the algorithms behind the operations taken you can use

edit YourFunctionYouWantToSee

to look into the calculations.

[Varun Gupta]

Thank you for your response.

Actually i applied the algorithm related to focal length, base line and disparity but did not find the exact value and got error in the result.

"edit YourFunctionYouWantToSee" How it works?

[Florian Morsch]

With edit 'FunctionName' you can look into the code for the function you are inserting. For example with

edit extrinsicsToCameraPose

you can see whats behind the function extrinsicsToCameraPose(). With this you can search the function you want for the maths / geometric calculations you need. With extrinsicsToCameraPose(R, t) you get the orientation and location parameter of your camera, so i think the coding behind the function is what you are looking for.