Abstract
Reprojection of texture issued from cameras on a mesh estimated from multi-view reconstruction is often the last stage of the pipeline, used for rendering, visualization, or simulation of new views. Errors or imprecisions in the recovered 3D geometry are particularly noticeable at this stage. Nevertheless, it is sometimes desirable to get a visually correct rendering in spite of the inaccuracy in the mesh, when correction of this mesh is not an option, for example if the origin of error in the stereo pipeline is unknown, or if the mesh is a visual hull. We propose to apply slight deformations to the data images to fit at best the fixed mesh. This is done by intersecting rays issued from corresponding interest points in different views, projecting the resulting 3D points on the mesh and reprojecting these points on the images. This provides a displacement vector at matched interest points in the images, from which an approximating full distortion vector field can be estimated by thin-plate splines. Using the distorted images as input in texturing algorithms can result in noticeably better rendering, as demonstrated here in several experiments.
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Aganj, E., Monasse, P., Keriven, R. (2010). Multi-view Texturing of Imprecise Mesh. In: Zha, H., Taniguchi, Ri., Maybank, S. (eds) Computer Vision – ACCV 2009. ACCV 2009. Lecture Notes in Computer Science, vol 5995. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-12304-7_44
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DOI: https://doi.org/10.1007/978-3-642-12304-7_44
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