For polarized stereoscopic projector

the influence of two main performance para-meters

which are the inconsistency in color and brightness of the left and right optical paths and stereo crosstalk

on stereoscopic projection quality is studied. The stereoscopic projection quality will be influenced by a number of factors

which are two projection images not strictly coincident on the screen

two optical paths' difference in color and brightness

stereo crosstalk caused by the polarized glasses

etc. The evaluation method is presented to evaluate the stereoscopic projection quality according to those factors and the evaluation system is built. The system obtains projection images by a digital camera

those parameters were analyzed and calculated by OpenCV

and then were compared with the presented maximum deviation value

the comparison result were sent to display and feedback signal. The system function is verified by using a stereoscopic projector. The result indicates that the evaluation system can measure and feedback performance parameters of stereoscopic projector effectively

and help to analyze the stereoscopic projection quality of the polarized stereoscopic projector comprehensively

thus enhance the stereoscopic projection quality.