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3D Scene Reconstruction from Multiple Spherical Stereo Pairs

Kim, H and Hilton, A (2013) 3D Scene Reconstruction from Multiple Spherical Stereo Pairs International Journal of Computer Vision, 104 (1). pp. 94-116.

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We propose a 3D environment modelling method using multiple pairs of high-resolution spherical images. Spherical images of a scene are captured using a rotating line scan camera. Reconstruction is based on stereo image pairs with a vertical displacement between camera views. A 3D mesh model for each pair of spherical images is reconstructed by stereo matching. For accurate surface reconstruction, we propose a PDE-based disparity estimation method which produces continuous depth fields with sharp depth discontinuities even in occluded and highly textured regions. A full environment model is constructed by fusion of partial reconstruction from spherical stereo pairs at multiple widely spaced locations. To avoid camera calibration steps for all camera locations, we calculate 3D rigid transforms between capture points using feature matching and register all meshes into a unified coordinate system. Finally a complete 3D model of the environment is generated by selecting the most reliable observations among overlapped surface measurements considering surface visibility, orientation and distance from the camera. We analyse the characteristics and behaviour of errors for spherical stereo imaging. Performance of the proposed algorithm is evaluated against ground-truth from the Middlebury stereo test bed and LIDAR scans. Results are also compared with conventional structure-from-motion algorithms. The final composite model is rendered from a wide range of viewpoints with high quality textures.

Item Type: Article
Divisions : Faculty of Engineering and Physical Sciences > Electronic Engineering > Centre for Vision Speech and Signal Processing
Authors :
Kim, H
Hilton, A
Date : 1 August 2013
DOI : 10.1007/s11263-013-0616-1
Uncontrolled Keywords : 3D reconstruction, Environment modelling, Disparity estimation, 3D registration, mesh integration
Depositing User : Symplectic Elements
Date Deposited : 31 Jul 2013 16:18
Last Modified : 31 Oct 2017 15:07

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