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We present a system that allows for accurate, fast, and robust estimation of camera parameters and depth maps from casual monocular videos of dynamic scenes. Most conventional structure from motion and monocular SLAM techniques assume input…

Computer Vision and Pattern Recognition · Computer Science 2024-12-10 Zhengqi Li , Richard Tucker , Forrester Cole , Qianqian Wang , Linyi Jin , Vickie Ye , Angjoo Kanazawa , Aleksander Holynski , Noah Snavely

We present a method for predicting dense depth in scenarios where both a monocular camera and people in the scene are freely moving. Existing methods for recovering depth for dynamic, non-rigid objects from monocular video impose strong…

Computer Vision and Pattern Recognition · Computer Science 2019-04-26 Zhengqi Li , Tali Dekel , Forrester Cole , Richard Tucker , Noah Snavely , Ce Liu , William T. Freeman

Learning single image depth estimation model from monocular video sequence is a very challenging problem. In this paper, we propose a novel training loss which enables us to include more images for supervision during the training process.…

Computer Vision and Pattern Recognition · Computer Science 2023-10-27 Zhenwei Luo

We propose a novel monocular visual odometry (VO) system called UnDeepVO in this paper. UnDeepVO is able to estimate the 6-DoF pose of a monocular camera and the depth of its view by using deep neural networks. There are two salient…

Computer Vision and Pattern Recognition · Computer Science 2018-02-22 Ruihao Li , Sen Wang , Zhiqiang Long , Dongbing Gu

A significant weakness of most current deep Convolutional Neural Networks is the need to train them using vast amounts of manu- ally labelled data. In this work we propose a unsupervised framework to learn a deep convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2016-08-01 Ravi Garg , Vijay Kumar BG , Gustavo Carneiro , Ian Reid

Accurately perceiving location and scene is crucial for autonomous driving and mobile robots. Recent advances in deep learning have made it possible to learn egomotion and depth from monocular images in a self-supervised manner, without…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Hao Qu , Lilian Zhang , Xiaoping Hu , Xiaofeng He , Xianfei Pan , Changhao Chen

Monocular depth estimation has been a popular area of research for several years, especially since self-supervised networks have shown increasingly good results in bridging the gap with supervised and stereo methods. However, these…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Daniel Braun , Olivier Morel , Pascal Vasseur , Cédric Demonceaux

This paper introduces an innovative approach for the autonomous landing of Unmanned Aerial Vehicles (UAVs) using only a front-facing monocular camera, therefore obviating the requirement for depth estimation cameras. Drawing on the inherent…

Robotics · Computer Science 2025-05-13 Tarik Houichime , Younes EL Amrani

Convolutional Neural Networks (CNNs) need large amounts of data with ground truth annotation, which is a challenging problem that has limited the development and fast deployment of CNNs for many computer vision tasks. We propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2018-03-16 Long Chen , Wen Tang , Nigel John

Depth estimation from images serves as the fundamental step of 3D perception for autonomous driving and is an economical alternative to expensive depth sensors like LiDAR. The temporal photometric constraints enables self-supervised depth…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Yi Wei , Linqing Zhao , Wenzhao Zheng , Zheng Zhu , Yongming Rao , Guan Huang , Jiwen Lu , Jie Zhou

Determining the distance between the objects in a scene and the camera sensor from 2D images is feasible by estimating depth images using stereo cameras or 3D cameras. The outcome of depth estimation is relative distances that can be used…

Computer Vision and Pattern Recognition · Computer Science 2021-11-03 Armin Masoumian , David G. F. Marei , Saddam Abdulwahab , Julian Cristiano , Domenec Puig , Hatem A. Rashwan

Recent work has shown that CNN-based depth and ego-motion estimators can be learned using unlabelled monocular videos. However, the performance is limited by unidentified moving objects that violate the underlying static scene assumption in…

Computer Vision and Pattern Recognition · Computer Science 2019-10-04 Jia-Wang Bian , Zhichao Li , Naiyan Wang , Huangying Zhan , Chunhua Shen , Ming-Ming Cheng , Ian Reid

Dense and accurate 3D mapping from a monocular sequence is a key technology for several applications and still an open research area. This paper leverages recent results on single-view CNN-based depth estimation and fuses them with…

Computer Vision and Pattern Recognition · Computer Science 2017-06-28 José M. Fácil , Alejo Concha , Luis Montesano , Javier Civera

Despite significant progress in monocular depth estimation in the wild, recent state-of-the-art methods cannot be used to recover accurate 3D scene shape due to an unknown depth shift induced by shift-invariant reconstruction losses used in…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Wei Yin , Jianming Zhang , Oliver Wang , Simon Niklaus , Long Mai , Simon Chen , Chunhua Shen

Monocular depth estimation can play an important role in addressing the issue of deriving scene geometry from 2D images. It has been used in a variety of industries, including robots, self-driving cars, scene comprehension, 3D…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Ruilin Ma , Shiyao Chen , Qin Zhang

It has long been an ill-posed problem to predict absolute depth maps from single images in real (unseen) indoor scenes. We observe that it is essentially due to not only the scale-ambiguous problem but also the focal-ambiguous problem that…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Chengrui Wei , Meng Yang , Lei He , Nanning Zheng

Existing monocular depth estimation methods have achieved excellent robustness in diverse scenes, but they can only retrieve affine-invariant depth, up to an unknown scale and shift. However, in some video-based scenarios such as video…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Guangkai Xu , Wei Yin , Hao Chen , Chunhua Shen , Kai Cheng , Feng Wu , Feng Zhao

Monocular depth estimation has been actively studied in fields such as robot vision, autonomous driving, and 3D scene understanding. Given a sequence of color images, unsupervised learning methods based on the framework of…

Computer Vision and Pattern Recognition · Computer Science 2022-12-06 Songlin Wei , Guodong Chen , Wenzheng Chi , Zhenhua Wang , Lining Sun

Estimating accurate depth from a single image is challenging because it is an ill-posed problem as infinitely many 3D scenes can be projected to the same 2D scene. However, recent works based on deep convolutional neural networks show great…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Jin Han Lee , Myung-Kyu Han , Dong Wook Ko , Il Hong Suh

Unsupervised depth learning takes the appearance difference between a target view and a view synthesized from its adjacent frame as supervisory signal. Since the supervisory signal only comes from images themselves, the resolution of…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Junsheng Zhou , Yuwang Wang , Kaihuai Qin , Wenjun Zeng