Howtosignalprocessing
- How do you calculate depth from disparity?
- What is the difference between disparity and depth?
- How do you make a disparity map?
- What is a disparity map?
How do you calculate depth from disparity?
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 the difference between disparity and depth?
Disparity is the horizontal displacement of a point's projections between the left and the right image. Whereas, depth refers to the z coordinate (usually z) of a point located in the real 3D world (x, y, z).
How do you make a disparity map?
Given a pair of stereo images, to compute the disparity map, we first match every pixel in the left image with its corresponding pixel in the right image. Then we compute the distance for each pair of matching pixels. Finally, the disparity map is obtained by representing such distance values as an intensity image.
What is a disparity map?
A disparity map, often referred to as a depth map, is an image which contains depth information of every pixel stored in it. The term disparity in stereo vision refers to the apparent shift in pixel or motion in a pair of stereo images.
