Automatic left-right channel swap detection

Automatic analysis of stereo-video quality plays an important role in the process of capturing, converting and editing video in 3D format. Although several low-level stereo-video quality metrics have been proposed, mane more-challenging problems of high-level stereo-video analysis, such as left-right channel swap detection, are still practically unresearched. The visual result of a channel swap is very disconcerting, but it is not always obvious even to a human observer what is wrong in such a sequence. In this paper we present a fully automatic algorithm for left-right channel swap detection. Experimental results for real video sequences demonstrate the effectiveness of the proposed technique.