Utilization of the Texture Uniqueness Cue in Stereo

3D Scene Reconstruction Based on Robust Camera Motion Estimation and Space Sweeping for a Cultural Heritage Virtual Tour System

“…In the proposed approach, the space-sweeping approach is slightly modified to employ a sweeping spherical, instead of planar, backprojection surface (see [19] for an analytical formulation). The technique provides higher reconstruction accuracy, especially in the periphery of the images (see [14] for an explanation) and, thus, the available images are more efficiently utilized. Otherwise, the sweeping procedure is similar to plane-sweeping and, for this reason, it is summarized here briefly.…”

“…This approach is frequently used for multiview stereo reconstruction, due to its computational efficiency and its straightforward acceleration by graphics hardware [11][12][13]. However, it is less accurate than other approaches that account for the projective distortion due to the orientation of the imaged surface [14]. For this reason, approaches that employ sweeping in multiple directions [11] or refine an initial estimation obtained by space-sweeping have been proposed [17].…”