ACCURATE MULTIVIEW STEREO RECONSTRUCTION WITH FAST VISIBILITY INTEGRATION AND TIGHT DISPARITY BOUNDING

Toldo, R.; Fantini, F.; Giona, L.; Fantoni, S.; Fusiello, A.

A novel multi-view stereo reconstruction method is presented. The algorithm is focused on accuracy and it is highly engineered with some parts taking advantage of the graphics processing unit. In addition, it is seamlessly integrated with the output of a structure and motion pipeline. In the first part of the algorithm a depth map is extracted independently for each image. The final depth map is generated from the depth hypothesis using a Markov random field optimization technique over the image grid. An octree data structure accumulates the votes coming from each depth map. A novel procedure to remove rogue points is proposed that takes into account the visibility information and the matching score of each point. Finally a texture map is built by wisely making use of both the visibility and the view angle informations. Several results show the effectiveness of the algorithm under different working scenarios.

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Toldo, R. / Fantini, F. / Giona, L. / et al: ACCURATE MULTIVIEW STEREO RECONSTRUCTION WITH FAST VISIBILITY INTEGRATION AND TIGHT DISPARITY BOUNDING. 2013. Copernicus Publications.

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