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Reconstructing 4D spatial intelligence from visual observations has long been a central yet challenging task in computer vision, with broad real-world applications. These range from entertainment domains like movies, where the focus is…

Computer Vision and Pattern Recognition · Computer Science 2025-08-05 Yukang Cao , Jiahao Lu , Zhisheng Huang , Zhuowen Shen , Chengfeng Zhao , Fangzhou Hong , Zhaoxi Chen , Xin Li , Wenping Wang , Yuan Liu , Ziwei Liu

Multiple-object tracking (MOT) in agricultural environments presents major challenges due to repetitive patterns, similar object appearances, sudden illumination changes, and frequent occlusions. Contemporary trackers in this domain rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Md Ahmed Al Muzaddid , Jordan A. James , William J. Beksi

Dynamic urban environments are often captured by cameras placed at spatially separated locations with little or no view overlap. However, most existing 4D reconstruction methods assume densely overlapping views. When applied to such sparse…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Hina Kogure , Kei Katsumata , Taiki Miyanishi , Komei Sugiura

Accurate predictions and representations of plant growth patterns in simulated and controlled environments are important for addressing various challenges in plant phenomics research. This review explores various works on state-of-the-art…

Quantitative Methods · Quantitative Biology 2025-07-17 Mohamed Debbagh , Shangpeng Sun , Mark Lefsrud

4D seismic imaging has been widely used in CO$_2$ sequestration projects to monitor the fluid flow in the volumetric subsurface region that is not sampled by wells. Ideally, real-time monitoring and near-future forecasting would provide…

Geophysics · Physics 2021-12-07 Shihang Feng , Xitong Zhang , Brendt Wohlberg , Neill Symons , Youzuo Lin

The increasing spatial and temporal resolution of globally available satellite images, such as provided by Sentinel-2, creates new possibilities for researchers to use freely available multi-spectral optical images, with decametric spatial…

Computer Vision and Pattern Recognition · Computer Science 2020-05-06 Vittorio Mazzia , Aleem Khaliq , Marcello Chiaberge

Big streams of Earth images from satellites or other platforms (e.g., drones and mobile phones) are becoming increasingly available at low or no cost and with enhanced spatial and temporal resolution. This thesis recognizes the…

Machine Learning · Computer Science 2022-11-24 Vasileios Sitokonstantinou

This paper addresses the problem of dynamic scene surface reconstruction using Gaussian Splatting (GS), aiming to recover temporally consistent geometry. While existing GS-based dynamic surface reconstruction methods can yield superior…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Renjie Wu , Hongdong Li , Jose M. Alvarez , Miaomiao Liu

Land use classification of low resolution spatial imagery is one of the most extensively researched fields in remote sensing. Despite significant advancements in satellite technology, high resolution imagery lacks global coverage and can be…

Machine Learning · Computer Science 2019-04-24 John Brandt

Recovering 4D from monocular video, which jointly estimates dynamic geometry and camera poses, is an inevitably challenging problem. While recent pointmap-based 3D reconstruction methods (e.g., DUSt3R) have made great progress in…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Shizun Wang , Zhenxiang Jiang , Xingyi Yang , Xinchao Wang

We present STORM, a spatio-temporal reconstruction model designed for reconstructing dynamic outdoor scenes from sparse observations. Existing dynamic reconstruction methods often rely on per-scene optimization, dense observations across…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Jiawei Yang , Jiahui Huang , Yuxiao Chen , Yan Wang , Boyi Li , Yurong You , Apoorva Sharma , Maximilian Igl , Peter Karkus , Danfei Xu , Boris Ivanovic , Yue Wang , Marco Pavone

Reconstructing dynamic 4D scenes remains challenging due to the presence of moving objects that corrupt camera pose estimation. Existing optimization methods alleviate this issue with additional supervision, but they are mostly…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Juntong Fang , Zequn Chen , Weiqi Zhang , Donglin Di , Xuancheng Zhang , Chengmin Yang , Yu-Shen Liu

Reconstructing dynamic, time-varying scenes with computed tomography (4D-CT) is a challenging and ill-posed problem common to industrial and medical settings. Existing 4D-CT reconstructions are designed for sparse sampling schemes that…

Image and Video Processing · Electrical Eng. & Systems 2021-04-26 Albert W. Reed , Hyojin Kim , Rushil Anirudh , K. Aditya Mohan , Kyle Champley , Jingu Kang , Suren Jayasuriya

Reconstructing large-scale dynamic scenes from visual observations is a fundamental challenge in computer vision, with critical implications for robotics and autonomous systems. While recent differentiable rendering methods such as Neural…

Computer Vision and Pattern Recognition · Computer Science 2026-05-05 Jingkang Wang , Henry Che , Yun Chen , Ze Yang , Lily Goli , Sivabalan Manivasagam , Raquel Urtasun

This paper focuses on the task of 4D shape reconstruction from a sequence of point clouds. Despite the recent success achieved by extending deep implicit representations into 4D space, it is still a great challenge in two respects, i.e. how…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Jiapeng Tang , Dan Xu , Kui Jia , Lei Zhang

Accurate crop mapping fundamentally relies on modeling multi-scale spatiotemporal patterns, where spatial scales range from individual field textures to landscape-level context, and temporal scales capture both short-term phenological…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Wenyuan Li , Shunlin Liang , Keyan Chen , Yongzhe Chen , Han Ma , Jianglei Xu , Yichuan Ma , Shikang Guan , Husheng Fang , Zhenwei Shi

Thin leaves, fine stems, self-occlusion, non-rigid and slowly changing structures make plants difficult for three-dimensional (3D) scanning and reconstruction -- two critical steps in automated visual phenotyping. Many current solutions…

Computer Vision and Pattern Recognition · Computer Science 2017-02-28 Chuong V Nguyen , Jurgen Fripp , David R Lovell , Robert Furbank , Peter Kuffner , Helen Daily , Xavier Sirault

With the popularity of monocular videos generated by video sharing and live broadcasting applications, reconstructing and editing dynamic scenes in stationary monocular cameras has become a special but anticipated technology. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2024-02-02 Weixing Xie , Xiao Dong , Yong Yang , Qiqin Lin , Jingze Chen , Junfeng Yao , Xiaohu Guo

Large-area crop classification using multi-spectral imagery is a widely studied problem for several decades and is generally addressed using classical Random Forest classifier. Recently, deep convolutional neural networks (DCNN) have been…

Computer Vision and Pattern Recognition · Computer Science 2021-03-19 Muhammad Usman Qadeer , Salar Saeed , Murtaza Taj , Abubakr Muhammad

Improvements in Earth observation by satellites allow for imagery of ever higher temporal and spatial resolution. Leveraging this data for agricultural monitoring is key for addressing environmental and economic challenges. Current methods…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Elliot Vincent , Jean Ponce , Mathieu Aubry