Subjective study on asymmetric stereoscopic video with low-pass filtered slices

Abstract

This paper proposes a new method for asymmetric filtering of stereoscopic video. In traditional asymmetric stereoscopic video coding, the quality of one of the views is reduced while the other view is of original quality. However, this approach is not fair for people with one dominant eye. We propose to address this problem by reducing the quality of horizontal slices in both views. In our approach, we applied low-pass filtering to slices of both views while the corresponding slice in the other view is untouched. Subjective tests show that the quality, sharpness and depth of the low-passed filtered stereo video are close to the original one. We tested a different number of horizontal slices and various levels of filtering for two representative video sequences. Results show that low-pass filtering of the horizontal slices of both views with smoothing on the slice edges is an effective technique for asymmetric stereoscopic videos.