Quality of experience for the horizontal pixel parallax adjustment of stereoscopic 3D videos

When capturing stereoscopic 3D video, video distortions can be avoided by setting up the cameras in parallel. Unfortunately, the resulting 3D scene appears to be in front of the screen, which is uncomfortable for the viewers. This problem can be solved by modifying the horizontal pixel parallax, which brings the picture on and behind the screen. We employ an algorithm that extracts and matches features from both left and right video sequences to automatically shift the video frames so that the closest object to the screen has zero pixel parallax. We then perform subjective tests to show that this parallax-adjusting process significantly increases the 3D quality of experience by 19.86%.