View synthesis based on texture mapping

In image-based rendering (IBR) applications, how to effectively and efficiently interpolate two consecutive images is a crucial and difficult problem to rend smooth transition. This paper presents a new and efficient algorithm to synthesize two consecutive images with relatively big scale change but little rotation change. First, the algorithm constructs triangular regions using the Delaunay triangulation. Based on the triangulation, we find a matched convex hull, constructed from the matched corner points, between the two images. According to the convex hull, the algorithm divides the images into the center and the border regions in which different methods are employed to map pixels between the two images. Then, a fast texture-mapping method is used to map pixels in the triangular regions. Experimental results conducted on real images demonstrated that our method could produce superior image-based rendering effect in real-time.