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In this paper we propose USegScene, a framework for semantically guided unsupervised learning of depth, optical flow and ego-motion estimation for stereo camera images using convolutional neural networks. Our framework leverages semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-07-18 Johan Vertens , Wolfram Burgard

The correct ego-motion estimation basically relies on the understanding of correspondences between adjacent LiDAR scans. However, given the complex scenarios and the low-resolution LiDAR, finding reliable structures for identifying…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Yan Xu , Junyi Lin , Jianping Shi , Guofeng Zhang , Xiaogang Wang , Hongsheng Li

A new unsupervised learning method of depth and ego-motion using multiple masks from monocular video is proposed in this paper. The depth estimation network and the ego-motion estimation network are trained according to the constraints of…

Computer Vision and Pattern Recognition · Computer Science 2021-04-02 Guangming Wang , Hesheng Wang , Yiling Liu , Weidong Chen

Obtaining highly accurate depth from stereo images in real time has many applications across computer vision and robotics, but in some contexts, upper bounds on power consumption constrain the feasible hardware to embedded platforms such as…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Oscar Rahnama , Tommaso Cavallari , Stuart Golodetz , Alessio Tonioni , Thomas Joy , Luigi Di Stefano , Simon Walker , Philip H. S. Torr

This paper addresses the problem of single image depth estimation (SIDE), focusing on improving the quality of deep neural network predictions. In a supervised learning scenario, the quality of predictions is intrinsically related to the…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Nícolas Rosa , Vitor Guizilini , Valdir Grassi

Detecting objects such as cars and pedestrians in 3D plays an indispensable role in autonomous driving. Existing approaches largely rely on expensive LiDAR sensors for accurate depth information. While recently pseudo-LiDAR has been…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Yurong You , Yan Wang , Wei-Lun Chao , Divyansh Garg , Geoff Pleiss , Bharath Hariharan , Mark Campbell , Kilian Q. Weinberger

Learning-based stereo matching has recently achieved promising results, yet still suffers difficulties in establishing reliable matches in weakly matchable regions that are textureless, non-Lambertian, or occluded. In this paper, we address…

Computer Vision and Pattern Recognition · Computer Science 2020-08-12 Jingyang Zhang , Yao Yao , Zixin Luo , Shiwei Li , Tianwei Shen , Tian Fang , Long Quan

In this paper, we have proposed a novel method for stereo disparity estimation by combining the existing methods of block based and region based stereo matching. Our method can generate dense disparity maps from disparity measurements of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-22 Subhayan Mukherjee , Ram Mohana Reddy Guddeti

We propose a hybrid method for stereo disparity estimation by combining block and region-based stereo matching approaches. It generates dense depth maps from disparity measurements of only 18 % image pixels (left or right). The methodology…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Subhayan Mukherjee , Ram Mohana Reddy Guddeti

Photometric loss is widely used for self-supervised depth and egomotion estimation. However, the loss landscapes induced by photometric differences are often problematic for optimization, caused by plateau landscapes for pixels in…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Chang Shu , Kun Yu , Zhixiang Duan , Kuiyuan Yang

Self-supervised learning for depth estimation possesses several advantages over supervised learning. The benefits of no need for ground-truth depth, online fine-tuning, and better generalization with unlimited data attract researchers to…

Computer Vision and Pattern Recognition · Computer Science 2021-08-17 Weihao Yuan , Yazhan Zhang , Bingkun Wu , Siyu Zhu , Ping Tan , Michael Yu Wang , Qifeng Chen

We present a new deep learning-based approach for dense stereo matching. Compared to previous works, our approach does not use deep learning of pixel appearance descriptors, employing very fast classical matching scores instead. At the same…

Computer Vision and Pattern Recognition · Computer Science 2016-11-18 Andrey Kuzmin , Dmitry Mikushin , Victor Lempitsky

We consider the problem of next frame prediction from video input. A recurrent convolutional neural network is trained to predict depth from monocular video input, which, along with the current video image and the camera trajectory, can…

Machine Learning · Computer Science 2017-06-14 Reza Mahjourian , Martin Wicke , Anelia Angelova

Significant attention has been attracted to deep learning-based depth estimates. Dynamic objects become the most hard problems in inter-frame-supervised depth estimates due to the uncertainty in adjacent frames. Thus, integrating optical…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Zhengyang Lu , Ying Chen

Depth Completion can produce a dense depth map from a sparse input and provide a more complete 3D description of the environment. Despite great progress made in depth completion, the sparsity of the input and low density of the ground truth…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Jiaqi Gu , Zhiyu Xiang , Yuwen Ye , Lingxuan Wang

The disparity information provided by stereo cameras has enabled advanced driver assistance systems to estimate road area more accurately and effectively. In this paper, a novel disparity transformation algorithm is proposed to extract road…

Computer Vision and Pattern Recognition · Computer Science 2018-08-09 Rui Fan , Mohammud Junaid Bocus , Naim Dahnoun

This paper proposes to use keypoints as a self-supervision clue for learning depth map estimation from a collection of input images. As ground truth depth from real images is difficult to obtain, there are many unsupervised and…

Computer Vision and Pattern Recognition · Computer Science 2020-11-09 Kristijan Bartol , David Bojanic , Tomislav Petkovic , Tomislav Pribanic , Yago Diez Donoso

We consider the problem of unsupervised camera pose estimation. Given an input video sequence, our goal is to estimate the camera pose (i.e. the camera motion) between consecutive frames. Traditionally, this problem is tackled by placing…

Computer Vision and Pattern Recognition · Computer Science 2020-01-20 Seyed Shahabeddin Nabavi , Mehrdad Hosseinzadeh , Ramin Fahimi , Yang Wang

Self-supervised methods have showed promising results on depth estimation task. However, previous methods estimate the target depth map and camera ego-motion simultaneously, underusing multi-frame correlation information and ignoring the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Songchun Zhang , Chunhui Zhao

Given the lidar measurements from an autonomous vehicle, we can project the points and generate a sparse depth image. Depth completion aims at increasing the resolution of such a depth image by infilling and interpolating the sparse depth…

Computer Vision and Pattern Recognition · Computer Science 2024-06-18 Pietari Kaskela , Philipp Fischer , Timo Roman