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We present an unsupervised simultaneous learning framework for the task of monocular camera re-localization and depth estimation from unlabeled video sequences. Monocular camera re-localization refers to the task of estimating the absolute…

计算机视觉与模式识别 · 计算机科学 2022-03-25 Shun Taguchi , Noriaki Hirose

Existing homography and optical flow methods are erroneous in challenging scenes, such as fog, rain, night, and snow because the basic assumptions such as brightness and gradient constancy are broken. To address this issue, we present an…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Haipeng Li , Kunming Luo , Bing Zeng , Shuaicheng Liu

Unsupervised learning based depth estimation methods have received more and more attention as they do not need vast quantities of densely labeled data for training which are touch to acquire. In this paper, we propose a novel unsupervised…

计算机视觉与模式识别 · 计算机科学 2019-09-04 Lingtao Zhou , Jiaojiao Fang , Guizhong Liu

Unsupervised learning from visual data is one of the most difficult challenges in computer vision, being a fundamental task for understanding how visual recognition works. From a practical point of view, learning from unsupervised visual…

计算机视觉与模式识别 · 计算机科学 2017-04-03 Ioana Croitoru , Simion-Vlad Bogolin , Marius Leordeanu

In this work, we propose a novel unsupervised deep learning model to address multi-focus image fusion problem. First, we train an encoder-decoder network in unsupervised manner to acquire deep feature of input images. And then we utilize…

计算机视觉与模式识别 · 计算机科学 2020-09-25 Boyuan Ma , Xiaojuan Ban , Haiyou Huang , Yu Zhu

We tackle the problem of unsupervised synthetic-to-real domain adaptation for single image depth estimation. An essential building block of single image depth estimation is an encoder-decoder task network that takes RGB images as input and…

计算机视觉与模式识别 · 计算机科学 2021-10-22 Hiroyasu Akada , Shariq Farooq Bhat , Ibraheem Alhashim , Peter Wonka

The key challenge in learning dense correspondences lies in the lack of ground-truth matches for real image pairs. While photometric consistency losses provide unsupervised alternatives, they struggle with large appearance changes, which…

计算机视觉与模式识别 · 计算机科学 2021-08-19 Prune Truong , Martin Danelljan , Fisher Yu , Luc Van Gool

This paper presents an self-supervised deep learning network for monocular visual inertial odometry (named DeepVIO). DeepVIO provides absolute trajectory estimation by directly merging 2D optical flow feature (OFF) and Inertial Measurement…

机器人学 · 计算机科学 2019-07-01 Liming Han , Yimin Lin , Guoguang Du , Shiguo Lian

The deep convolutional neural network has achieved significant progress for single image rain streak removal. However, most of the data-driven learning methods are full-supervised or semi-supervised, unexpectedly suffering from significant…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Changfeng Yu , Yi Chang , Yi Li , Xile Zhao , Luxin Yan

This paper tackles the unsupervised depth estimation task in indoor environments. The task is extremely challenging because of the vast areas of non-texture regions in these scenes. These areas could overwhelm the optimization process in…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Zehao Yu , Lei Jin , Shenghua Gao

We address the unsupervised learning of several interconnected problems in low-level vision: single view depth prediction, camera motion estimation, optical flow, and segmentation of a video into the static scene and moving regions. Our key…

计算机视觉与模式识别 · 计算机科学 2019-03-13 Anurag Ranjan , Varun Jampani , Lukas Balles , Kihwan Kim , Deqing Sun , Jonas Wulff , Michael J. Black

Although both self-supervised single-frame and multi-frame depth estimation methods only require unlabeled monocular videos for training, the information they leverage varies because single-frame methods mainly rely on appearance-based…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Jie Xiang , Yun Wang , Lifeng An , Haiyang Liu , Jian Liu

Depth estimation is a cornerstone for autonomous driving, yet acquiring per-pixel depth ground truth for supervised learning is challenging. Self-Supervised Surround Depth Estimation (SSSDE) from consecutive images offers an economical…

计算机视觉与模式识别 · 计算机科学 2024-12-04 Laiyan Ding , Hualie Jiang , Jie Li , Yongquan Chen , Rui Huang

Learning without supervision how to predict 3D scene flows from point clouds is essential to many perception systems. We propose a novel learning framework for this task which improves the necessary regularization. Relying on the assumption…

计算机视觉与模式识别 · 计算机科学 2024-08-14 Patrik Vacek , David Hurych , Karel Zimmermann , Patrick Perez , Tomas Svoboda

Vessel segmentation is an essential task in many clinical applications. Although supervised methods have achieved state-of-art performance, acquiring expert annotation is laborious and mostly limited for two-dimensional datasets with a…

图像与视频处理 · 电气工程与系统科学 2021-07-23 Rohit Jena , Sumedha Singla , Kayhan Batmanghelich

Arguably one of the top success stories of deep learning is transfer learning. The finding that pre-training a network on a rich source set (eg., ImageNet) can help boost performance once fine-tuned on a usually much smaller target set, has…

计算机视觉与模式识别 · 计算机科学 2020-11-24 Saining Xie , Jiatao Gu , Demi Guo , Charles R. Qi , Leonidas J. Guibas , Or Litany

We address the challenging problem of semi-supervised learning in the context of multiple visual interpretations of the world by finding consensus in a graph of neural networks. Each graph node is a scene interpretation layer, while each…

计算机视觉与模式识别 · 计算机科学 2020-12-04 Marius Leordeanu , Mihai Pirvu , Dragos Costea , Alina Marcu , Emil Slusanschi , Rahul Sukthankar

We propose a new self-supervised approach to image feature learning from motion cue. This new approach leverages recent advances in deep learning in two directions: 1) the success of training deep neural network in estimating optical flow…

计算机视觉与模式识别 · 计算机科学 2019-01-10 Bin Ma , Shubao Liu , Yingxuan Zhi , Qi Song

We present a unified formulation and model for three motion and 3D perception tasks: optical flow, rectified stereo matching and unrectified stereo depth estimation from posed images. Unlike previous specialized architectures for each…

计算机视觉与模式识别 · 计算机科学 2023-07-27 Haofei Xu , Jing Zhang , Jianfei Cai , Hamid Rezatofighi , Fisher Yu , Dacheng Tao , Andreas Geiger

Self-supervised monocular depth estimation, aiming to learn scene depths from single images in a self-supervised manner, has received much attention recently. In spite of recent efforts in this field, how to learn accurate scene depths and…

计算机视觉与模式识别 · 计算机科学 2022-09-16 Zhengming Zhou , Qiulei Dong