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LiDAR bundle adjustment (BA) is an effective approach to reduce the drifts in pose estimation from the front-end. Existing works on LiDAR BA usually rely on predefined geometric features for landmark representation. This reliance restricts…

Computer Vision and Pattern Recognition · Computer Science 2025-04-07 Xingyu Ji , Shenghai Yuan , Jianping Li , Pengyu Yin , Haozhi Cao , Lihua Xie

Change detection (CD) is a fundamental task in remote sensing (RS) which aims to detect the semantic changes between the same geographical regions at different time stamps. Existing convolutional neural networks (CNNs) based approaches…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Mubashir Noman , Mustansar Fiaz , Hisham Cholakkal

This paper presents a fully unsupervised deep change detection approach for mobile robots with 3D LiDAR. In unstructured environments, it is infeasible to define a closed set of semantic classes. Instead, semantic segmentation is…

Robotics · Computer Science 2024-05-01 Alexander Krawciw , Jordy Sehn , Timothy D. Barfoot

General change detection (GCD) and semantic change detection (SCD) are common methods for identifying changes and distinguishing object categories involved in those changes, respectively. However, the binary changes provided by GCD is often…

Computer Vision and Pattern Recognition · Computer Science 2023-03-09 Yuqun Yang , Xu Tang , Xiangrong Zhang , Jingjing Ma , Licheng Jiao

Despite significant advancements in salient object detection(SOD) in optical remote sensing images(ORSI), challenges persist due to the intricate edge structures of ORSIs and the complexity of their contextual relationships. Current deep…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Yakun Xie , Suning Liu , Hongyu Chen , Shaohan Cao , Huixin Zhang , Dejun Feng , Qian Wan , Jun Zhu , Qing Zhu

Detecting changes on the ground in multitemporal Earth observation data is one of the key problems in remote sensing. In this paper, we introduce Sibling Regression for Optical Change detection (SiROC), an unsupervised method for change…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Lukas Kondmann , Aysim Toker , Sudipan Saha , Bernhard Schölkopf , Laura Leal-Taixé , Xiao Xiang Zhu

Remote sensing change detection fundamentally relies on the effective fusion and discrimination of bi-temporal features. Prevailing paradigms typically utilize Siamese encoders bridged by explicit difference computation modules, such as…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Sijun Dong , Siming Fu , Kaiyu Li , Xiangyong Cao , Xiaoliang Meng , Bo Du

Change Detection (CD) is a fundamental task in remote sensing. It monitors the evolution of land cover over time. Based on this, Open-Vocabulary Change Detection (OVCD) introduces a new requirement. It aims to reduce the reliance on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-27 Xu Zhang , Danyang Li , Yingjie Xia , Xiaohang Dong , Hualong Yu , Jianye Wang , Qicheng Li

Remote sensing image change captioning (RSICC) aims to articulate the changes in objects of interest within bi-temporal remote sensing images using natural language. Given the limitations of current RSICC methods in expressing general…

Computer Vision and Pattern Recognition · Computer Science 2024-07-22 Yongshuo Zhu , Lu Li , Keyan Chen , Chenyang Liu , Fugen Zhou , Zhenwei Shi

Deep learning approaches have shown promising results in remote sensing high spatial resolution (HSR) land-cover mapping. However, urban and rural scenes can show completely different geographical landscapes, and the inadequate…

Computer Vision and Pattern Recognition · Computer Science 2022-06-01 Junjue Wang , Zhuo Zheng , Ailong Ma , Xiaoyan Lu , Yanfei Zhong

Source-Free Domain Adaptation (SFDA) aims to adapt a pre-trained source model to an unlabeled target domain without access to source data. Recent advances in Foundation Models (FMs) have introduced new opportunities for leveraging external…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Huisoo Lee , Jisu Han , Hyunsouk Cho , Wonjun Hwang

Remote sensing Water Body Change Detection (WBCD) aims to detect water body surface changes from bi-temporal images of the same geographic area. Recently, the scarcity of high spatial resolution datasets for WBCD restricts its application…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Quanqing Ma , Jiaen Chen , Peng Wang , Yao Zheng , Qingzhan Zhao , Yuchen Zheng

Multi-label image recognition is a fundamental task in computer vision. Recently, Vision-Language Models (VLMs) have made notable advancements in this area. However, previous methods fail to effectively leverage the rich knowledge in…

Computer Vision and Pattern Recognition · Computer Science 2024-07-31 Hao Tan , Zichang Tan , Jun Li , Jun Wan , Zhen Lei , Stan Z. Li

Change detection (CD) identifies scene changes from multi-temporal observations and is widely used in urban development and environmental monitoring. Most existing CD methods rely on supervised learning, making performance strongly…

Computer Vision and Pattern Recognition · Computer Science 2025-12-19 Ziqiang Zhu , Bowei Yang

In this paper, we present the Semantic Boundary Conditioned Backbone (SBCB) framework, a simple yet effective training framework that is model-agnostic and boosts segmentation performance, especially around the boundaries. Motivated by the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-20 Haruya Ishikawa , Yoshimitsu Aoki

Urban vegetation monitoring plays a vital role in understanding environmental changes, yet comprehensive datasets for this purpose remain limited. To address this gap, we present the Temporal Remote-sensing Repository for Analyzing Change…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Omkar Oak , Rukmini Nazre , Rujuta Budke , Suraj Sawant

Semantic location prediction from multimodal social media posts is a critical task with applications in personalized services and human mobility analysis. This paper introduces \textit{Contextualized Vision-Language Alignment (CoVLA)}, a…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Liu Jing , Amirul Rahman

Remote sensing change detection (RSCD) is vital for identifying land-cover changes, yet existing methods, including state-of-the-art State Space Models (SSMs), often lack explicit mechanisms to handle geometric misalignments and struggle to…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Min Sun , Fenghui Guo

Remote sensing image change detection (RSCD) is crucial for monitoring dynamic surface changes, with applications ranging from environmental monitoring to disaster assessment. While traditional CNN-based methods have improved detection…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Wenyu Liu , Jindong Li , Haoji Wang , Run Tan , Yali Fu , Qichuan Tian

Semantic segmentation of 3D geospatial point clouds is fundamental to remote sensing applications, yet domain shifts caused by regional and acquisition-related variations often degrade model performance. Although domain adaptation can…

Computer Vision and Pattern Recognition · Computer Science 2026-05-27 Yuan Gao , Di Cao , Xiaohuan Xi , Sheng Nie , Shaobo Xia , Cheng Wang