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We present GLNet, a self-supervised framework for learning depth, optical flow, camera pose and intrinsic parameters from monocular video - addressing the difficulty of acquiring realistic ground-truth for such tasks. We propose three…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Yuhua Chen , Cordelia Schmid , Cristian Sminchisescu

Self-supervised deep learning-based 3D scene understanding methods can overcome the difficulty of acquiring the densely labeled ground-truth and have made a lot of advances. However, occlusions and moving objects are still some of the major…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Jiaojiao Fang , Guizhong Liu

In this paper, we consider the task of unsupervised object discovery in videos. Previous works have shown promising results via processing optical flows to segment objects. However, taking flow as input brings about two drawbacks. First,…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Shuangrui Ding , Weidi Xie , Yabo Chen , Rui Qian , Xiaopeng Zhang , Hongkai Xiong , Qi Tian

We present a method for decomposing the 3D scene flow observed from a moving stereo rig into stationary scene elements and dynamic object motion. Our unsupervised learning framework jointly reasons about the camera motion, optical flow, and…

Computer Vision and Pattern Recognition · Computer Science 2019-09-17 Seokju Lee , Sunghoon Im , Stephen Lin , In So Kweon

Accurate perception of dynamic traffic scenes is crucial for high-level autonomous driving systems, requiring robust object motion estimation and instance segmentation. However, traditional methods often treat them as separate tasks,…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yinqi Chen , Meiying Zhang , Qi Hao , Guang Zhou

We propose a novel method for learning convolutional neural image representations without manual supervision. We use motion cues in the form of optical flow, to supervise representations of static images. The obvious approach of training a…

Computer Vision and Pattern Recognition · Computer Science 2018-07-17 Aravindh Mahendran , James Thewlis , Andrea Vedaldi

Unsupervised optical flow estimators based on deep learning have attracted increasing attention due to the cost and difficulty of annotating for ground truth. Although performance measured by average End-Point Error (EPE) has improved over…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Shuzhi Yu , Hannah Halin Kim , Shuai Yuan , Carlo Tomasi

Despite recent advances, estimating optical flow remains a challenging problem in the presence of illumination change, large occlusions or fast movement. In this paper, we propose a novel optical flow estimation framework which can provide…

Computer Vision and Pattern Recognition · Computer Science 2018-04-12 Inchul Choi , Arunava Banerjee

Event-based cameras have shown great promise in a variety of situations where frame based cameras suffer, such as high speed motions and high dynamic range scenes. However, developing algorithms for event measurements requires a new class…

Computer Vision and Pattern Recognition · Computer Science 2018-08-14 Alex Zihao Zhu , Liangzhe Yuan , Kenneth Chaney , Kostas Daniilidis

Learning-based optical flow estimation has been dominated with the pipeline of cost volume with convolutions for flow regression, which is inherently limited to local correlations and thus is hard to address the long-standing challenge of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Haofei Xu , Jing Zhang , Jianfei Cai , Hamid Rezatofighi , Dacheng Tao

We present a self-supervised learning approach for optical flow. Our method distills reliable flow estimations from non-occluded pixels, and uses these predictions as ground truth to learn optical flow for hallucinated occlusions. We…

Computer Vision and Pattern Recognition · Computer Science 2019-04-22 Pengpeng Liu , Michael Lyu , Irwin King , Jia Xu

Computing optical flow is a fundamental problem in computer vision. However, deep learning-based optical flow techniques do not perform well for non-rigid movements such as those found in faces, primarily due to lack of the training data…

Computer Vision and Pattern Recognition · Computer Science 2021-05-05 Muhannad Alkaddour , Usman Tariq , Abhinav Dhall

In the domain of computer vision, optical flow stands as a cornerstone for unraveling dynamic visual scenes. However, the challenge of accurately estimating optical flow under conditions of large nonlinear motion patterns remains an open…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Chanuka Algama , Kasun Amarasinghe

We learn to compute optical flow by combining a classical spatial-pyramid formulation with deep learning. This estimates large motions in a coarse-to-fine approach by warping one image of a pair at each pyramid level by the current flow…

Computer Vision and Pattern Recognition · Computer Science 2016-11-22 Anurag Ranjan , Michael J. Black

The optical flow of humans is well known to be useful for the analysis of human action. Given this, we devise an optical flow algorithm specifically for human motion and show that it is superior to generic flow methods. Designing a method…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Anurag Ranjan , Javier Romero , Michael J. Black

Autonomous vehicle navigation is a key challenge in artificial intelligence, requiring robust and accurate decision-making processes. This research introduces a new end-to-end method that exploits multimodal information from a single…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Fouad Makiyeh , Mark Bastourous , Anass Bairouk , Wei Xiao , Mirjana Maras , Tsun-Hsuan Wangb , Marc Blanchon , Ramin Hasani , Patrick Chareyre , Daniela Rus

3D single object tracking (SOT) is a crucial task in fields of mobile robotics and autonomous driving. Traditional motion-based approaches achieve target tracking by estimating the relative movement of target between two consecutive frames.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-03 Shuo Li , Yubo Cui , Zhiheng Li , Zheng Fang

Accurate perception of the dynamic environment is a fundamental task for autonomous driving and robot systems. This paper introduces Let Occ Flow, the first self-supervised work for joint 3D occupancy and occupancy flow prediction using…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Yili Liu , Linzhan Mou , Xuan Yu , Chenrui Han , Sitong Mao , Rong Xiong , Yue Wang

In moving camera videos, motion segmentation is commonly performed using the image plane motion of pixels, or optical flow. However, objects that are at different depths from the camera can exhibit different optical flows even if they share…

Computer Vision and Pattern Recognition · Computer Science 2015-11-06 Manjunath Narayana , Allen Hanson , Erik Learned-Miller

Scene flow estimation is the task to predict the point-wise or pixel-wise 3D displacement vector between two consecutive frames of point clouds or images, which has important application in fields such as service robots and autonomous…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Guangming Wang , Yunzhe Hu , Xinrui Wu , Hesheng Wang
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