In a standard Stereo camera set-up where is the Origin of Epipolar line?
whether it is at the Lens or at Image sensor?
I'm using Opencv [Stereo camera calibration](http://docs.opencv.org/3.0-beta/modules/calib3d/doc/camera_calibration_and_3d_reconstruction.html#stereocalibrate) method to calibrate my camera. Clearly from the fundamental matrix I am able to verify that the **Origin is at the Lens**. But when I calibrate it by using earlier versions of opencv it was shifted to the Image sensor. So I would like to know what is the correct results with some definitions.
What are the parameters that will affect the Origin during calibration? such as Tilted model, Non-Zero Tangential Distortion?
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