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Self-supervised monocular image depth learning and confidence estimation
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DOI：10.1016/j.neucom.2019.11.038.png)
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摘要
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We present a novel self-supervised framework for monocular image depth learning and confidence estimation. Our framework reduces the amount of ground truth annotation data required for training Convolutional Neural Networks (CNNs), which is often a challenging problem for the fast deployment of CNNs in many computer vision tasks. Our DepthNet adopts a novel fully differential patch-based cost function through the Zero-Mean Normalized Cross Correlation (ZNCC) to take multi-scale patches as matching and learning strategies. This approach greatly increases the accuracy and robustness of the depth learning. Whilst the proposed patch-based cost function naturally provides a 0-to-1 confidence, it is then used to self-supervise the training of a parallel network for confidence map learning and estimation by exploiting the fact that ZNCC is a normalized measure of similarity which can be approximated as the confidence of the depth estimation. Therefore, the proposed corresponding confidence map learning and estimation operate in a self-supervised manner and is a parallel network to the DepthNet. Evaluation on the KITTI depth prediction evaluation dataset and Make3D dataset show that our method outperforms the state-of-the-art results. Crown Copyright (C) 2019 Published by Elsevier B.V. All rights reserved.
Keyword:
Monocular depth estimation
Deep convolutional neural networks
Confidence map
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期刊
IF:
6.5
论文数:
2.5W
被引数:
6.5W
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引用论文
Seismic profiles of the offshore Gulf of Alaska Tertiary Province, R/V Thompson, Sept.-Oct. 1974
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