Dong-sheng LIU, Jian-lin CHEN, Dian FEI, et al. Three-dimensional reconstruction of large-scale scene based on depth camera[J]. Optics and precision engineering, 2020, 28(1): 234-243.
DOI:
Dong-sheng LIU, Jian-lin CHEN, Dian FEI, et al. Three-dimensional reconstruction of large-scale scene based on depth camera[J]. Optics and precision engineering, 2020, 28(1): 234-243. DOI: 10.3788/OPE.20202801.0234.
Three-dimensional reconstruction of large-scale scene based on depth camera
Aiming at the problem of camera drift and low-quality reconstruction caused by accumulated errors in pose estimation for large-scale reconstruction
we proposed a method to reduce accumulated errors. First
based on the model fused by the latest
K
depth and color images
the geometric and photometric error of the input RGB-D image were minimized to track the camera. Then
if the distance between the camera position and the subvolume center was more than a given threshold
the subvolume was shifted by multiples of voxel size
the camera was continuously tracked and the local scene model was reconstructed based on the newly created subvolume. Finally
the corresponding surface points were searched by the iterative step method between subvolumes
and the global camera trajectory was optimized by Euclidean distance and photometric error between the correspondence. The experimental results based on the dataset show that the camera pose estimation accuracy is improved by 14.1% than the current method
and the global trajectory optimization accuracy is improved by 8%. The system designed in this paper can also reduce the accumulated errors in pose estimation and reconstruct a high-quality scene model for self-collected data.
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references
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