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Deep learning (DL) has recently been proposed as a novel approach for 21cm foreground removal. Before applying DL to real observations, it is essential to assess its consistency with established methods, its performance across various…

宇宙学与河外天体物理 · 物理学 2023-11-02 T. Chen , M. Bianco , E. Tolley , M. Spinelli , D. Forero-Sanchez , J. P. Kneib

We propose GeoNet, a jointly unsupervised learning framework for monocular depth, optical flow and ego-motion estimation from videos. The three components are coupled by the nature of 3D scene geometry, jointly learned by our framework in…

计算机视觉与模式识别 · 计算机科学 2018-03-13 Zhichao Yin , Jianping Shi

Monocular height estimation (MHE) from remote sensing imagery has high potential in generating 3D city models efficiently for a quick response to natural disasters. Most existing works pursue higher performance. However, there is little…

计算机视觉与模式识别 · 计算机科学 2022-02-03 Zhitong Xiong , Sining Chen , Yilei Shi , Xiao Xiang Zhu

It is difficult to collect data on a large scale in a monocular depth estimation because the task requires the simultaneous acquisition of RGB images and depths. Data augmentation is thus important to this task. However, there has been…

计算机视觉与模式识别 · 计算机科学 2021-07-19 Yasunori Ishii , Takayoshi Yamashita

In this paper, we address the problem of estimating dense depth from a sequence of images using deep neural networks. Specifically, we employ a dense-optical-flow network to compute correspondences and then triangulate the point cloud to…

计算机视觉与模式识别 · 计算机科学 2021-03-30 Tong Ke , Tien Do , Khiem Vuong , Kourosh Sartipi , Stergios I. Roumeliotis

Monocular depth estimation is a crucial task to measure distance relative to a camera, which is important for applications, such as robot navigation and self-driving. Traditional frame-based methods suffer from performance drops due to the…

计算机视觉与模式识别 · 计算机科学 2024-07-25 Tianbo Pan , Zidong Cao , Lin Wang

On-orbit proximity operations in space rendezvous, docking and debris removal require precise and robust 6D pose estimation under a wide range of lighting conditions and against highly textured background, i.e., the Earth. This paper…

计算机视觉与模式识别 · 计算机科学 2019-08-30 Pedro F. Proenca , Yang Gao

This paper considers the problem of single image depth estimation. The employment of convolutional neural networks (CNNs) has recently brought about significant advancements in the research of this problem. However, most existing methods…

计算机视觉与模式识别 · 计算机科学 2018-09-25 Junjie Hu , Mete Ozay , Yan Zhang , Takayuki Okatani

Event cameras are novel sensors that output brightness changes in the form of a stream of asynchronous events instead of intensity frames. Compared to conventional image sensors, they offer significant advantages: high temporal resolution,…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Javier Hidalgo-Carrió , Daniel Gehrig , Davide Scaramuzza

Real-time transportation surveillance is an essential part of the intelligent transportation system (ITS). However, images captured under low-light conditions often suffer the poor visibility with types of degradation, such as noise…

计算机视觉与模式识别 · 计算机科学 2023-09-18 Jingxiang Qu , Ryan Wen Liu , Yuan Gao , Yu Guo , Fenghua Zhu , Fei-yue Wang

Predicting accurate depth with monocular images is important for low-cost robotic applications and autonomous driving. This study proposes a comprehensive self-supervised framework for accurate scale-aware depth prediction on autonomous…

计算机视觉与模式识别 · 计算机科学 2023-04-24 Yuxuan Liu , Zhenhua Xu , Huaiyang Huang , Lujia Wang , Ming Liu

Low-overlap aerial imagery poses significant challenges to traditional photogrammetric methods, which rely heavily on high image overlap to produce accurate and complete mapping products. In this study, we propose a novel workflow based on…

计算机视觉与模式识别 · 计算机科学 2025-03-07 Jiageng Zhong , Qi Zhou , Ming Li , Armin Gruen , Xuan Liao

Depth estimation from light field (LF) images is a fundamental step for numerous applications. Recently, learning-based methods have achieved higher accuracy and efficiency than the traditional methods. However, it is costly to obtain…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Shansi Zhang , Nan Meng , Edmund Y. Lam

In this paper, we propose a novel, convolutional neural network model to extract highly precise depth maps from missing viewpoints, especially well applicable to generate holographic 3D contents. The depth map is an essential element for…

计算机视觉与模式识别 · 计算机科学 2021-03-10 Hakdong Kim , Heonyeong Lim , Minkyu Jee , Yurim Lee , Jisoo Jeong , Kyudam Choi , MinSung Yoon , Cheongwon Kim

Visual SLAM (Simultaneous Localization and Mapping) methods typically rely on handcrafted visual features or raw RGB values for establishing correspondences between images. These features, while suitable for sparse mapping, often lead to…

计算机视觉与模式识别 · 计算机科学 2018-11-21 Chamara Saroj Weerasekera , Ravi Garg , Yasir Latif , Ian Reid

Accurate depth estimation with lowest compute and energy cost is a crucial requirement for unmanned and battery operated autonomous systems. Robotic applications require real time depth estimation for navigation and decision making under…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Rajeev Patwari , Varo Ly

Recent advances in geometric deep-learning introduce complex computational challenges for evaluating the distance between meshes. From a mesh model, point clouds are necessary along with a robust distance metric to assess surface quality or…

计算机视觉与模式识别 · 计算机科学 2021-04-30 Léo Lebrat , Rodrigo Santa Cruz , Clinton Fookes , Olivier Salvado

Deep learning based methods have achieved remarkable success in image restoration and enhancement, but most such methods rely on RGB input images. These methods fail to take into account the rich spectral distribution of natural images. We…

图像与视频处理 · 电气工程与系统科学 2021-02-11 Harsh Sinha , Aditya Mehta , Murari Mandal , Pratik Narang

Monocular depth estimation is an especially important task in robotics and autonomous driving, where 3D structural information is essential. However, extreme lighting conditions and complex surface objects make it difficult to predict depth…

计算机视觉与模式识别 · 计算机科学 2021-10-27 Minhyeok Lee , Sangwon Hwang , Chaewon Park , Sangyoun Lee

Inferring the depth of transparent or mirror (ToM) surfaces represents a hard challenge for either sensors, algorithms, or deep networks. We propose a simple pipeline for learning to estimate depth properly for such surfaces with neural…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Alex Costanzino , Pierluigi Zama Ramirez , Matteo Poggi , Fabio Tosi , Stefano Mattoccia , Luigi Di Stefano