In stereoscopic displays

stereo depth is associated with parallax image’s parallax

and parallax is related with camera’s layout when the parallax images are captured. In the paper

the parallel camera configuration is adopted. By setting proper space between cameras and shifting the images reasonably

the objects with a certain depth have zero parallax and the objects with other depth have expected parallax. The parallax embodies the stereo depth

so the quantitative relationship between stereo depth and distance of two cameras which capture the parallax images is calculated. Experiments were carried out to verify the theory. The results help to shoot good parallax images for stereoscopic displays by laying out cameras suitably.