Depth from reprojectImageTo3D

asked 2014-06-26 15:54:15 -0500

user6789 gravatar image

updated 2020-11-06 15:17:43 -0500

Hi , I'm working with opencv and I have a doubt.I've ran stereorectify() and reprojectImageTo3D() methods on my images taken from a stereo pair of cameras.The output of reprojectImageTo3D() method is a matrix having 3 channels of x y and z cordinate.I have the following doubts in mind which would be a great help if solved.

  1. The output of reprojectImageTo3D() method is in which distance measuring system.?Like does it give output in meters/cm (cause of calibration) or in pixels.
  2. How to locate the origin of the stereo camera system.
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Comments

The distance's unit is the same as the one you set for the chessboard. For example, if your chessboard corner is set as (0,0), (0,1), (0, 2)... standing for 1 cm for each block, then the unit for your result from reprojectImageTo3D is in "cm" unit. Hope it helps.

bennygato gravatar imagebennygato ( 2014-07-14 15:39:31 -0500 )edit

do u happen to know any good resource for point cloud generation during real time..??

user6789 gravatar imageuser6789 ( 2014-07-30 13:04:20 -0500 )edit