Deep Learning-Based Monocular Depth Estimation Methods—A State-of-the-Art Review

Faisal Khan, Saqib Salahuddin, Hossein Javidnia
<span title="2020-04-16">2020</span> <i title="MDPI AG"> <a target="_blank" rel="noopener" href="" style="color: black;">Sensors</a> </i> &nbsp;
Monocular depth estimation from Red-Green-Blue (RGB) images is a well-studied ill-posed problem in computer vision which has been investigated intensively over the past decade using Deep Learning (DL) approaches. The recent approaches for monocular depth estimation mostly rely on Convolutional Neural Networks (CNN). Estimating depth from two-dimensional images plays an important role in various applications including scene reconstruction, 3D object-detection, robotics and autonomous driving.
more &raquo; ... s survey provides a comprehensive overview of this research topic including the problem representation and a short description of traditional methods for depth estimation. Relevant datasets and 13 state-of-the-art deep learning-based approaches for monocular depth estimation are reviewed, evaluated and discussed. We conclude this paper with a perspective towards future research work requiring further investigation in monocular depth estimation challenges.
<span class="external-identifiers"> <a target="_blank" rel="external noopener noreferrer" href="">doi:10.3390/s20082272</a> <a target="_blank" rel="external noopener" href="">pmid:32316336</a> <a target="_blank" rel="external noopener" href="">pmcid:PMC7219073</a> <a target="_blank" rel="external noopener" href="">fatcat:kfio24wembgxhkheafhd74gra4</a> </span>
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