Calculate disparity

1. What is disparity value?
2. How do you calculate disparity from depth?
3. What is disparity range?
4. What is disparity mapping?

What is disparity value?

The disparity image is one where the value of each pixel is inversely related to the distance between that point in the scene and the camera.

How do you calculate disparity from depth?

x = xl*z/f or b + xr*z/f y = yl*z/f or yr*z/f This method of determining depth from disparity d is called triangulation.

What is disparity range?

The disparity range depends on the distance between the two cameras and the distance between the cameras and the object of interest. Increase the DisparityRange when the cameras are far apart or the objects are close to the cameras.

What is disparity mapping?

Disparity map refers to the apparent pixel difference or motion between a pair of stereo images. To experience this, try closing one of your eyes and then rapidly close it while opening the other. Objects that are close to you will appear to jump a significant distance while objects further away will move very little.