Interactive Stereoscopic Video Conversion
This paper presents a system of converting conventional monocular videos to stereoscopic ones. In the system, an input monocular video is firstly segmented into shots so as to reduce operations on similar frames. An automatic depth estimation method is proposed to compute the depth maps of the video frames utilizing three monocular depth cues - depth-from-defocus, aerial perspective, and motion. Foreground/background objects can be interactively segmented on selected key frames and their depth values can be adjusted by users. Such results are propagated from key frames to nonkey frames within each video shot. Equipped with a depth-to-disparity conversion module, the system synthesizes the counterpart (either left or right) view for stereoscopic display by warping the original frames according to their disparity maps. The quality of converted videos is evaluated by human mean opinion scores, and experiment results demonstrate that the proposed conversion method achieves encouraging performance.