User Manual

Inspector
Controls Tab
Vertical Alignment
This option determines how the vertical alignment is split between two eyes. Usually, the left
eye is declared inviolate, and the right eye is aligned to it to avoid resampling artifacts.
When doing per pixel vertical alignment, it may be helpful to roughly pre-align the images by a
global Y-shift before disparity computation because the disparity generation algorithm can have
problems resolving small objects that move large distances.
Also, be aware that you must be careful about lens distortion because even if two cameras are
perfectly vertically aligned, they will still have vertical disparities due to lens distortion. As a
best practice, remove the lens distortion before computing the disparity. When a vertical
alignment of the right eye is done, you have essentially removed the Y-component of the lens
distortion in the right eye, and it will look wrong later when you try to distort it again.
Apply to
 Right: Only the right eye is adjusted.
 Left: Only the left eye is adjusted.
 Both: The vertical alignment is split evenly between the left and right eyes.
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