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SDA-SNE: Spatial Discontinuity-Aware Surface Normal Estimation via Multi-Directional Dynamic Programming. (arXiv:2208.08667v1 [cs.CV])
Aug. 19, 2022, 1:12 a.m. | Nan Ming, Yi Feng, Rui Fan
cs.CV updates on arXiv.org arxiv.org
The state-of-the-art (SoTA) surface normal estimators (SNEs) generally
translate depth images into surface normal maps in an end-to-end fashion.
Although such SNEs have greatly minimized the trade-off between efficiency and
accuracy, their performance on spatial discontinuities, e.g., edges and ridges,
is still unsatisfactory. To address this issue, this paper first introduces a
novel multi-directional dynamic programming strategy to adaptively determine
inliers (co-planar 3D points) by minimizing a (path) smoothness energy. The
depth gradients can then be refined iteratively using a …
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