Unsupervised Monocular Depth Reconstruction of Non-Rigid Scenes

• URL: http://arxiv.org/abs/2012.15680v1
• Date: Thu, 31 Dec 2020 16:02:03 GMT
• Title: Unsupervised Monocular Depth Reconstruction of Non-Rigid Scenes
• Authors: Ay\c{c}a Takmaz, Danda Pani Paudel, Thomas Probst, Ajad Chhatkuli, Martin R. Oswald, Luc Van Gool
• Abstract summary: We present an unsupervised monocular framework for dense depth estimation of dynamic scenes. We derive a training objective that aims to opportunistically preserve pairwise distances between reconstructed 3D points. Our method provides promising results, demonstrating its capability of reconstructing 3D from challenging videos of non-rigid scenes.
• Score: 87.91841050957714
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Monocular depth reconstruction of complex and dynamic scenes is a highly challenging problem. While for rigid scenes learning-based methods have been offering promising results even in unsupervised cases, there exists little to no literature addressing the same for dynamic and deformable scenes. In this work, we present an unsupervised monocular framework for dense depth estimation of dynamic scenes, which jointly reconstructs rigid and non-rigid parts without explicitly modelling the camera motion. Using dense correspondences, we derive a training objective that aims to opportunistically preserve pairwise distances between reconstructed 3D points. In this process, the dense depth map is learned implicitly using the as-rigid-as-possible hypothesis. Our method provides promising results, demonstrating its capability of reconstructing 3D from challenging videos of non-rigid scenes. Furthermore, the proposed method also provides unsupervised motion segmentation results as an auxiliary output.

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