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Contextual information can have a substantial impact on the performance of visual tasks such as semantic segmentation, object detection, and geometric estimation. Data stored in Geographic Information Systems (GIS) offers a rich source of…

计算机视觉与模式识别 · 计算机科学 2016-02-22 Raúl Díaz , Minhaeng Lee , Jochen Schubert , Charless C. Fowlkes

Estimating the depth of objects from a single image is a valuable task for many vision, robotics, and graphics applications. However, current methods often fail to produce accurate depth for objects in diverse scenes. In this work, we…

计算机视觉与模式识别 · 计算机科学 2023-06-09 Manel Baradad , Yuanzhen Li , Forrester Cole , Michael Rubinstein , Antonio Torralba , William T. Freeman , Varun Jampani

Understanding the deep semantics of images is essential in the era dominated by social media. However, current research works primarily on the superficial description of images, revealing a notable deficiency in the systematic investigation…

计算与语言 · 计算机科学 2024-06-21 Yixin Yang , Zheng Li , Qingxiu Dong , Heming Xia , Zhifang Sui

Floods are among the most frequent natural hazards and cause significant social and economic damage. Timely, large-scale information on flood extent and depth is essential for disaster response; however, existing products often trade…

计算机视觉与模式识别 · 计算机科学 2025-11-19 Wenfeng Jia , Bin Liang , Yuxi Lu , Attavit Wilaiwongsakul , Muhammad Arif Khan , Lihong Zheng

Mapping water extent during a flood event is essential for effective disaster management throughout all phases: mitigation, preparedness, response, and recovery. In particular, during the response stage, when timely and accurate information…

计算机视觉与模式识别 · 计算机科学 2026-01-09 Hyunho Lee , Wenwen Li

We present a multi-sensor Bayesian passive microwave retrieval algorithm for flood inundation mapping at high spatial and temporal resolutions. The algorithm takes advantage of observations from multiple sensors in optical, short-infrared,…

数据分析、统计与概率 · 物理学 2018-07-12 Zeinab Takbiri , Ardeshir M Ebtehaj , Efi Foufoula-Georgiou

Depth estimation enables a wide variety of 3D applications, such as robotics, autonomous driving, and virtual reality. Despite significant work in this area, it remains open how to enable accurate, low-cost, high-resolution, and large-range…

声音 · 计算机科学 2022-07-22 Wei Sun , Lili Qiu

RGBD images, combining high-resolution color and lower-resolution depth from various types of depth sensors, are increasingly common. One can significantly improve the resolution of depth maps by taking advantage of color information; deep…

计算机视觉与模式识别 · 计算机科学 2019-09-10 Oleg Voynov , Alexey Artemov , Vage Egiazarian , Alexander Notchenko , Gleb Bobrovskikh , Denis Zorin , Evgeny Burnaev

Riverine flooding poses significant risks. Developing strategies to manage flood risks requires flood projections with decision-relevant scales and well-characterized uncertainties, often at high spatial resolutions. However, calibrating…

统计方法学 · 统计学 2025-03-28 Samantha Roth , Sanjib Sharma , Atieh Alipour , Klaus Keller , Murali Haran

Monocular depth estimation from RGB images plays a pivotal role in 3D vision. However, its accuracy can deteriorate in challenging environments such as nighttime or adverse weather conditions. While long-wave infrared cameras offer stable…

计算机视觉与模式识别 · 计算机科学 2024-02-20 Jialei Xu , Xianming Liu , Junjun Jiang , Kui Jiang , Rui Li , Kai Cheng , Xiangyang Ji

Estimating depth from a single RGB image is an ill-posed and inherently ambiguous problem. State-of-the-art deep learning methods can now estimate accurate 2D depth maps, but when the maps are projected into 3D, they lack local detail and…

计算机视觉与模式识别 · 计算机科学 2017-12-05 Jun Li , Reinhard Klein , Angela Yao

Remote sensing of the Earth's surface water is critical in a wide range of environmental studies, from evaluating the societal impacts of seasonal droughts and floods to the large-scale implications of climate change. Consequently, a large…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Joachim Moortgat , Ziwei Li , Michael Durand , Ian Howat , Bidhyananda Yadav , Chunli Dai

Accurate and timely mapping of flood extent from high-resolution satellite imagery plays a crucial role in disaster management such as damage assessment and relief activities. However, current state-of-the-art solutions are based on U-Net,…

计算机视觉与模式识别 · 计算机科学 2024-09-27 Mirza Tanzim Sami , Da Yan , Saugat Adhikari , Lyuheng Yuan , Jiao Han , Zhe Jiang , Jalal Khalil , Yang Zhou

We present a novel method for multi-view depth estimation from a single video, which is a critical task in various applications, such as perception, reconstruction and robot navigation. Although previous learning-based methods have…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Xiaoxiao Long , Lingjie Liu , Wei Li , Christian Theobalt , Wenping Wang

This article presents a 3D geographic information systems (GIS) modeling and simulation of water flow in a landscape defined by a digital terrain model, provided by some available geolocation APIs. The proposed approach uses a cellular…

计算工程、金融与科学 · 计算机科学 2020-07-21 Souhaib Douass , M'hamed Ait Kbir

Although existing monocular depth estimation methods have made great progress, predicting an accurate absolute depth map from a single image is still challenging due to the limited modeling capacity of networks and the scale ambiguity…

计算机视觉与模式识别 · 计算机科学 2022-10-07 Jie Xiang , Yun Wang , Lifeng An , Haiyang Liu , Zijun Wang , Jian Liu

Ground-truth depth, when combined with color data, helps improve object detection accuracy over baseline models that only use color. However, estimated depth does not always yield improvements. Many factors affect the performance of object…

计算机视觉与模式识别 · 计算机科学 2022-04-14 Bedrettin Cetinkaya , Sinan Kalkan , Emre Akbas

Advances in neural networks enable tackling complex computer vision tasks such as depth estimation of outdoor scenes at unprecedented accuracy. Promising research has been done on depth estimation. However, current efforts are…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Fatemeh Karimi , Amir Mehrpanah , Reza Rawassizadeh

Deep Learning is becoming an increasingly important way to produce accurate hydrological predictions across a wide range of spatial and temporal scales. Uncertainty estimations are critical for actionable hydrological forecasting, and while…

We propose an automated method to estimate a road segment's free-flow speed from overhead imagery and road metadata. The free-flow speed of a road segment is the average observed vehicle speed in ideal conditions, without congestion or…

计算机视觉与模式识别 · 计算机科学 2019-06-25 Weilian Song , Tawfiq Salem , Hunter Blanton , Nathan Jacobs