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This paper presents a parallax-robust video stitching technique for timely synchronized surveillance video. An efficient two-stage video stitching procedure is proposed in this paper to build wide Field-of-View (FOV) videos for surveillance applications. In the stitching model calculation stage, we develop a layered warping algorithm to align the background scenes, which is location-dependent and turned out to be more robust to parallax than the traditional global projective warping methods. Ondoi:10.3390/s16010007 pmid:26712756 pmcid:PMC4732040 fatcat:vcxww47fhfah3chdrg64jze6qy