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Despite the remarkable progress achieved in remote sensing semantic change detection (SCD), two major challenges remain. At the data level, existing SCD datasets suffer from limited change categories, insufficient change types, and a lack…

Computer Vision and Pattern Recognition · Computer Science 2025-09-22 Haotian Zhang , Han Guo , Keyan Chen , Hao Chen , Zhengxia Zou , Zhenwei Shi

Scene Change Detection is a challenging task in computer vision and robotics that aims to identify differences between two images of the same scene captured at different times. Traditional change detection methods rely on training models…

Robotics · Computer Science 2024-09-24 Shyam Sundar Kannan , Byung-Cheol Min

Change detection (CD) from remote sensing (RS) images using deep learning has been widely investigated in the literature. It is typically regarded as a pixel-wise labeling task that aims to classify each pixel as changed or unchanged.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Weikang Yu , Xiaokang Zhang , Samiran Das , Xiao Xiang Zhu , Pedram Ghamisi

Change detection is a fundamental task in remote sensing, aiming to quantify the impacts of human activities and ecological dynamics on land-cover changes. Existing change detection methods are limited to predefined classes in training…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 You Su , Yonghong Song , Jingqi Chen , Zehan Wen

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

Unsupervised Change Detection (UCD) in multimodal Remote Sensing (RS) images remains a difficult challenge due to the inherent spatio-temporal complexity within data, and the heterogeneity arising from different imaging sensors. Inspired by…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Lei Ding , Xibing Zuo , Danfeng Hong , Haitao Guo , Jun Lu , Zhihui Gong , Lorenzo Bruzzone

Remote sensing change detection (RSCD) aims to identify surface changes from co-registered bi-temporal images. However, many deep learning-based RSCD methods rely solely on change-map annotations and underuse the semantic information in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Ching-Heng Cheng , Chih-Chung Hsu

Contemporary transfer learning-based methods to alleviate the data insufficiency in change detection (CD) are mainly based on ImageNet pre-training. Self-supervised learning (SSL) has recently been introduced to remote sensing (RS) for…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Hao Chen , Yifan Zao , Liqin Liu , Song Chen , Zhenwei Shi

We introduce a multilingual speaker change detection model (USM-SCD) that can simultaneously detect speaker turns and perform ASR for 96 languages. This model is adapted from a speech foundation model trained on a large quantity of…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-09 Guanlong Zhao , Yongqiang Wang , Jason Pelecanos , Yu Zhang , Hank Liao , Yiling Huang , Han Lu , Quan Wang

Vision Foundation Models (VFMs) such as the Segment Anything Model (SAM) allow zero-shot or interactive segmentation of visual contents, thus they are quickly applied in a variety of visual scenes. However, their direct use in many Remote…

Computer Vision and Pattern Recognition · Computer Science 2024-02-23 Lei Ding , Kun Zhu , Daifeng Peng , Hao Tang , Kuiwu Yang , Lorenzo Bruzzone

Speaker change detection (SCD) is an important feature that improves the readability of the recognized words from an automatic speech recognition (ASR) system by breaking the word sequence into paragraphs at speaker change points. Existing…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-20 Jian Wu , Zhuo Chen , Min Hu , Xiong Xiao , Jinyu Li

Remote sensing change detection (CD) aims to identify where land-cover semantics change across time, but most existing methods still assume a fixed label space and therefore cannot answer arbitrary user-defined queries. Open-vocabulary…

Computer Vision and Pattern Recognition · Computer Science 2026-04-03 Weidong Tang , Hanbin Sun , Zihan Li , Yikai Wang , Feifan Zhang

As an important task in remote sensing image analysis, remote sensing change detection (RSCD) aims to identify changes of interest in a region from spatially co-registered multi-temporal remote sensing images, so as to monitor the local…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Xiaowen Ma , Jiawei Yang , Tingfeng Hong , Mengting Ma , Ziyan Zhao , Tian Feng , Wei Zhang

Remote sensing change detection (RSCD) aims to identify surface changes across bi-temporal satellite images. Most previous methods rely solely on mask supervision, which effectively guides spatial localization but provides limited…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Han Guo , Chenyang Liu , Haotian Zhang , Bowen Chen , Zhengxia Zou , Zhenwei Shi

In recent years, remote sensing change detection has garnered significant attention due to its critical role in resource monitoring and disaster assessment. Change detection tasks exist with different output granularities such as BCD, SCD,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Yuan Qu , Zhipeng Zhang , Chaojun Xu , Qiao Wan , Mengying Xie , Yuzeng Chen , Zhenqi Liu , Yanfei Zhong

Semantic Change Detection (SCD) is recognized as both a crucial and challenging task in the field of image analysis. Traditional methods for SCD have predominantly relied on the comparison of image pairs. However, this approach is…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Yinhe Liu , Sunan Shi , Zhuo Zheng , Jue Wang , Shiqi Tian , Yanfei Zhong

Semantic Change Detection (SCD) aims to detect and categorize land-cover changes from bi-temporal remote sensing images. Existing methods often suffer from blurred boundaries and inadequate temporal modeling, limiting segmentation accuracy.…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Yun-Cheng Li , Sen Lei , Heng-Chao Li , Ke Li

In the remote sensing community, multimodal change detection (MCD) is particularly critical due to its ability to track changes across different imaging conditions and sensor types, making it highly applicable to a wide range of real-world…

Image and Video Processing · Electrical Eng. & Systems 2024-10-23 Tao Zhan , Yuanyuan Zhu , Jie Lan , Qianlong Dang

Semantic change detection (SCD) extends the multi-class change detection (MCD) task to provide not only the change locations but also the detailed land-cover/land-use (LCLU) categories before and after the observation intervals. This…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Lei Ding , Haitao Guo , Sicong Liu , Lichao Mou , Jing Zhang , Lorenzo Bruzzone

Semi-supervised change detection (SSCD) utilizes partially labeled data and abundant unlabeled data to detect differences between multi-temporal remote sensing images. The mainstream SSCD methods based on consistency regularization have…

Computer Vision and Pattern Recognition · Computer Science 2025-04-21 Yan Xing , Qi'ao Xu , Zongyu Guo , Rui Huang , Yuxiang Zhang