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As a developing country, Fiji is facing rapid urbanisation, which is visible in the massive development projects that include housing, roads, and civil works. In this study, we present machine learning and remote sensing frameworks to…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Yadvendra Gurjar , Ruoni Wan , Ehsan Farahbakhsh , Rohitash Chandra

Recent advances in implicit scene representation enable high-fidelity street view novel view synthesis. However, existing methods optimize a neural radiance field for each scene, relying heavily on dense training images and extensive…

Computer Vision and Pattern Recognition · Computer Science 2025-06-23 Sheng Miao , Jiaxin Huang , Dongfeng Bai , Weichao Qiu , Bingbing Liu , Andreas Geiger , Yiyi Liao

Mapping and localization is a critical module of autonomous driving, and significant achievements have been reached in this field. Beyond Global Navigation Satellite System (GNSS), research in point cloud registration, visual feature…

Pixel count and geographical coverage are two key characteristics of remote sensing images. Existing remote sensing image segmentation methods typically focus on images with either a small pixel count or a large pixel count but limited…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Chuyu Zhong , Keyan Chen , Qinzhe Yang , Bowen Chen , Zhengxia Zou , Zhenwei Shi

Accurate moving object segmentation is an essential task for autonomous driving. It can provide effective information for many downstream tasks, such as collision avoidance, path planning, and static map construction. How to effectively…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Jiadai Sun , Yuchao Dai , Xianjing Zhang , Jintao Xu , Rui Ai , Weihao Gu , Xieyuanli Chen

This paper provides a first milestone in measuring the floorspace of buildings (that is, building footprint and height) for 40 major Chinese cities. The intent is to maximize city coverage and, eventually provide longitudinal data. Doing so…

Computer Vision and Pattern Recognition · Computer Science 2023-06-08 Peter Egger , Susie Xi Rao , Sebastiano Papini

Accurate semantic segmentation of urban remote sensing images (URSIs) is essential for urban planning and environmental monitoring. However, it remains challenging due to the subtle texture differences and similar spatial structures among…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Guoyu Zhou , Jing Zhang , Yi Yan , Hui Zhang , Li Zhuo

With the development of underwater object grabbing technology, underwater object recognition and segmentation of high accuracy has become a challenge. The existing underwater object detection technology can only give the general position of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-27 Zhiwei Ma , Haojie Li , Zhihui Wang , Dan Yu , Tianyi Wang , Yingshuang Gu , Xin Fan , Zhongxuan Luo

In the past few years, Artificial Intelligence (AI)-based weather forecasting methods have widely demonstrated strong competitiveness among the weather forecasting systems. However, these methods are insufficient for high-spatial-resolution…

Atmospheric and Oceanic Physics · Physics 2024-11-18 Xujun Wei , Feng Zhang , Renhe Zhang , Wenwen Li , Cuiping Liu , Bin Guo , Jingwei Li , Haoyang Fu , Xu Tang

In this work, we propose a geometry-aware semi-supervised framework for fine-grained building function recognition, utilizing geometric relationships among multi-source data to enhance pseudo-label accuracy in semi-supervised learning,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-10 Weijia Li , Jinhua Yu , Dairong Chen , Yi Lin , Runmin Dong , Xiang Zhang , Conghui He , Haohuan Fu

This work explores the application of Federated Learning (FL) to Unsupervised Semantic image Segmentation (USS). Recent USS methods extract pixel-level features using frozen visual foundation models and refine them through self-supervised…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Evangelos Charalampakis , Vasileios Mygdalis , Ioannis Pitas

Underwater images suffer from severe degradations, including color distortions, reduced visibility, and loss of structural details due to wavelength-dependent attenuation and scattering. Existing enhancement methods primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-04-15 Jaskaran Singh Walia , Shravan Venkatraman , Pavithra LK

The availability of curated large-scale training data is a crucial factor for the development of well-generalizing deep learning methods for the extraction of geoinformation from multi-sensor remote sensing imagery. While quite some…

Computer Vision and Pattern Recognition · Computer Science 2019-06-20 Michael Schmitt , Lloyd Haydn Hughes , Chunping Qiu , Xiao Xiang Zhu

High-resolution satellite images can provide abundant, detailed spatial information for land cover classification, which is particularly important for studying the complicated built environment. However, due to the complex land cover…

Computer Vision and Pattern Recognition · Computer Science 2023-04-10 Xin-Yi Tong , Gui-Song Xia , Xiao Xiang Zhu

In this work, we present SYSU-HiRoads, a large-scale hierarchical road dataset, and RoadReasoner, a vision-language-geometry framework for automatic multi-grade road mapping from remote sensing imagery. SYSU-HiRoads is built from GF-2…

Computer Vision and Pattern Recognition · Computer Science 2026-03-24 Ting Han , Xiangyi Xie , Yiping Chen , Yumeng Du , Jin Ma , Aiguang Li , Jiaan Liu , Yin Gao

High-quality digital terrain models derived from airborne laser scanning (ALS) data are essential for a wide range of geospatial analyses, and their generation typically relies on robust ground filtering (GF) to separate point clouds across…

Computer Vision and Pattern Recognition · Computer Science 2026-04-24 Nannan Qin , Pengjie Tao , Haiyan Guan , Zhizhong Kang , Lingfei Ma , Xiangyun Hu , Jonathan Li

Accurate flood detection from visual data is a critical step toward improving disaster response and risk assessment, yet datasets for flood segmentation remain scarce due to the challenges of collecting and annotating large-scale imagery.…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Georgios Simantiris , Konstantinos Bacharidis , Apostolos Papanikolaou , Petros Giannakakis , Costas Panagiotakis

Street-view imagery provides us with novel experiences to explore different places remotely. Carefully calibrated street-view images (e.g. Google Street View) can be used for different downstream tasks, e.g. navigation, map features…

Computer Vision and Pattern Recognition · Computer Science 2023-07-14 Wenmiao Hu , Yichen Zhang , Yuxuan Liang , Yifang Yin , Andrei Georgescu , An Tran , Hannes Kruppa , See-Kiong Ng , Roger Zimmermann

Time series data of urban land cover is of great utility in analyzing urban growth patterns, changes in distribution of impervious surface and vegetation and resulting impacts on urban micro climate. While Landsat data is ideal for such…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Krishna Kumar Perikamana , Krishnachandran Balakrishnan , Pratyush Tripathy

The attention mechanism can refine the extracted feature maps and boost the classification performance of the deep network, which has become an essential technique in computer vision and natural language processing. However, the memory and…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Rui Li , Shunyi Zheng , Chenxi Duan , Jianlin Su , Ce Zhang