IET Computer Vision最新文献

{"title":"Foundation Model Based Camouflaged Object Detection","authors":"Zefeng Chen,&nbsp;Zhijiang Li,&nbsp;Yunqi Xue,&nbsp;Li Zhang","doi":"10.1049/cvi2.70009","DOIUrl":"https://doi.org/10.1049/cvi2.70009","url":null,"abstract":"<p>Camouflaged object detection (COD) aims to identify and segment objects that closely resemble and are seamlessly integrated into their surrounding environments, making it a challenging task in computer vision. COD is constrained by the limited availability of training data and annotated samples, and most carefully designed COD models exhibit diminished performance under low-data conditions. In recent years, there has been increasing interest in leveraging foundation models, which have demonstrated robust general capabilities and superior generalisation performance, to address COD challenges. This work proposes a knowledge-guided domain adaptation (KGDA) approach to tackle the data scarcity problem in COD. The method utilises the knowledge descriptions generated by multimodal large language models (MLLMs) for camouflaged images, aiming to enhance the model's comprehension of semantic objects and camouflaged scenes through highly abstract and generalised knowledge representations. To resolve ambiguities and errors in the generated text descriptions, a multi-level knowledge aggregation (MLKG) module is devised. This module consolidates consistent semantic knowledge and forms multi-level semantic knowledge features. To incorporate semantic knowledge into the visual foundation model, the authors introduce a knowledge-guided semantic enhancement adaptor (KSEA) that integrates the semantic knowledge of camouflaged objects while preserving the original knowledge of the foundation model. Extensive experiments demonstrate that our method surpasses 19 state-of-the-art approaches and exhibits strong generalisation capabilities even with limited annotated data.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Crafting Transferable Adversarial Examples Against 3D Object Detection","authors":"Haiyan Long,&nbsp;Hai Chen,&nbsp;Mengyao Xu,&nbsp;Chonghao Zhang,&nbsp;Fulan Qian","doi":"10.1049/cvi2.70011","DOIUrl":"https://doi.org/10.1049/cvi2.70011","url":null,"abstract":"<p>3D object detection is one of the current popular hotspots by perceiving the surrounding environment through LiDAR and camera sensors to recognise the category and location of objects in the scene. Deep neural networks (DNNs) have been found to be vulnerable to adversarial examples. Although some approaches have begun to investigate the robustness of 3D object detection models, they are currently generating adversarial examples in a white-box setting and there is a lack of research into generating transferable adversarial examples in a black-box setting. In this paper, a non-end-to-end attack algorithm was proposed for LiDAR pipelines that crafts transferable adversarial examples against 3D object detection. Specifically, the method generates adversarial examples by restraining features with high contribution to downstream tasks and amplifying features with low contribution to downstream tasks in the feature space. Extensive experiments validate that the method produces more transferable adversarial point clouds, for example, the method generates adversarial point clouds in the nuScenes dataset that are about 10<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>%</mi>\u0000 </mrow>\u0000 <annotation> $%$</annotation>\u0000 </semantics></math> and 7<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>%</mi>\u0000 </mrow>\u0000 <annotation> $%$</annotation>\u0000 </semantics></math> better than the state-of-the-art method on mAP and NDS, respectively.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70011","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Temporal Optimisation of Satellite Image-Based Crop Mapping: A Comparison of Deep Time Series and Semi-Supervised Time Warping Strategies","authors":"Rosie Finnegan,&nbsp;Joseph Metcalfe,&nbsp;Sara Sharifzadeh,&nbsp;Fabio Caraffini,&nbsp;Xianghua Xie,&nbsp;Alberto Hornero,&nbsp;Nicholas W. Synes","doi":"10.1049/cvi2.70014","DOIUrl":"https://doi.org/10.1049/cvi2.70014","url":null,"abstract":"<p>This study presents a novel approach to crop mapping using remotely sensed satellite images. It addresses the significant classification modelling challenges, including (1) the requirements for extensive labelled data and (2) the complex optimisation problem for selection of appropriate temporal windows in the absence of prior knowledge of cultivation calendars. We compare the lightweight Dynamic Time Warping (DTW) classification method with the heavily supervised Convolutional Neural Network - Long Short-Term Memory (CNN-LSTM) using high-resolution multispectral optical satellite imagery (3 m/pixel). Our approach integrates effective practical preprocessing steps, including data augmentation and a data-driven optimisation strategy for the temporal window, even in the presence of numerous crop classes. Our findings demonstrate that DTW, despite its lower data demands, can match the performance of CNN-LSTM through our effective preprocessing steps while significantly improving runtime. These results demonstrate that both CNN-LSTM and DTW can achieve deployment-level accuracy and underscore the potential of DTW as a viable alternative to more resource-intensive models. The results also prove the effectiveness of temporal windowing for improving runtime and accuracy of a crop classification study, even with no prior knowledge of planting timeframes.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143707264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent Advances of Continual Learning in Computer Vision: An Overview","authors":"Haoxuan Qu,&nbsp;Hossein Rahmani,&nbsp;Li Xu,&nbsp;Bryan Williams,&nbsp;Jun Liu","doi":"10.1049/cvi2.70013","DOIUrl":"https://doi.org/10.1049/cvi2.70013","url":null,"abstract":"<p>In contrast to batch learning where all training data is available at once, continual learning represents a family of methods that accumulate knowledge and learn continuously with data available in sequential order. Similar to the human learning process with the ability of learning, fusing and accumulating new knowledge acquired at different time steps, continual learning is considered to have high practical significance. Hence, continual learning has been studied in various artificial intelligence tasks. In this paper, we present a comprehensive review of the recent progress of continual learning in computer vision. In particular, the works are grouped by their representative techniques, including regularisation, knowledge distillation, memory, generative replay, parameter isolation and a combination of the above techniques. For each category of these techniques, both its characteristics and applications in computer vision are presented. At the end of this overview, several subareas, where continuous knowledge accumulation is potentially helpful while continual learning has not been well studied, are discussed.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70013","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143689168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Review of Multi-Object Tracking in Recent Times","authors":"Suya Li,&nbsp;Hengyi Ren,&nbsp;Xin Xie,&nbsp;Ying Cao","doi":"10.1049/cvi2.70010","DOIUrl":"https://doi.org/10.1049/cvi2.70010","url":null,"abstract":"<p>Multi-object tracking (MOT) is a fundamental problem in computer vision that involves tracing the trajectories of foreground targets throughout a video sequence while establishing correspondences for identical objects across frames. With the advancement of deep learning techniques, methods based on deep learning have significantly improved accuracy and efficiency in MOT. This paper reviews several recent deep learning-based MOT methods and categorises them into three main groups: detection-based, single-object tracking (SOT)-based, and segmentation-based methods, according to their core technologies. Additionally, this paper discusses the metrics and datasets used for evaluating MOT performance, the challenges faced in the field, and future directions for research.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143581368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"TAPCNet: Tactile-Assisted Point Cloud Completion Network via Iterative Fusion Strategy","authors":"Yangrong Liu,&nbsp;Jian Li,&nbsp;Huaiyu Wang,&nbsp;Ming Lu,&nbsp;Haorao Shen,&nbsp;Qin Wang","doi":"10.1049/cvi2.70012","DOIUrl":"https://doi.org/10.1049/cvi2.70012","url":null,"abstract":"<p>With the development of the 3D point cloud field in recent years, point cloud completion of 3D objects has increasingly attracted researchers' attention. Point cloud data can accurately express the shape information of 3D objects at different resolutions, but the original point clouds collected directly by various 3D scanning equipment are often incomplete and have uneven density. Tactile is one distinctive way to perceive the 3D shape of an object. Tactile point clouds can provide local shape information for unknown areas during completion, which is a valuable complement to the point cloud data acquired with visual devices. In order to effectively improve the effect of point cloud completion using tactile information, the authors propose an innovative tactile-assisted point cloud completion network, TAPCNet. This network is the first neural network customised for the input of tactile point clouds and incomplete point clouds, which can fuse two types of point cloud information in the feature domain. Besides, a new dataset named 3DVT was rebuilt, to fit the proposed network model. Based on the tactile fusion strategy and related modules, multiple comparative experiments were conducted by controlling the quantity of tactile point clouds on the 3DVT dataset. The experimental data illustrates that TAPCNet can outperform the state-of-the-art methods in the benchmark.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143571267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Generating Transferable Adversarial Point Clouds via Autoencoders for 3D Object Classification","authors":"Mengyao Xu,&nbsp;Hai Chen,&nbsp;Chonghao Zhang,&nbsp;Yuanjun Zou,&nbsp;Chenchu Xu,&nbsp;Yanping Zhang,&nbsp;Fulan Qian","doi":"10.1049/cvi2.70008","DOIUrl":"https://doi.org/10.1049/cvi2.70008","url":null,"abstract":"<p>Recent studies have shown that deep neural networks are vulnerable to adversarial attacks. In the field of 3D point cloud classification, transfer-based black-box attack strategies have been explored to address the challenge of limited knowledge about the model in practical scenarios. However, existing approaches typically rely excessively on network structure, resulting in poor transferability of the generated adversarial examples. To address the above problem, the authors propose <i>AEattack</i>, an adversarial attack method capable of generating highly transferable adversarial examples. Specifically, AEattack employs an autoencoder (AE) to extract features from the point cloud data and reconstruct the adversarial point cloud based on these features. Notably, the AE does not require pre-training, and its parameters are jointly optimised using a loss function during the process of generating adversarial point clouds. The method makes the generated adversarial point cloud not overly dependent on the network structure, but more concerned with the data distribution. Moreover, this design endows AEattack with a broader potential for application. Extensive experiments on the ModelNet40 dataset show that AEattack is capable of generating highly transferable adversarial point clouds, with up to 61.8% improvement in transferability compared to state-of-the-art adversarial attacks.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A New Large-Scale Dataset for Marine Vessel Re-Identification Based on Swin Transformer Network in Ocean Surveillance Scenario","authors":"Zhi Lu,&nbsp;Liguo Sun,&nbsp;Pin Lv,&nbsp;Jiuwu Hao,&nbsp;Bo Tang,&nbsp;Xuanzhen Chen","doi":"10.1049/cvi2.70007","DOIUrl":"https://doi.org/10.1049/cvi2.70007","url":null,"abstract":"<p>In recent years, there has been an upward trend that marine vessels, an important object category in marine monitoring, have gradually become a research focal point in the field of computer vision, such as detection, tracking, and classification. Among them, marine vessel re-identification (Re-ID) emerges as a significant frontier research topics, which not only faces the dual challenge of huge intra-class and small inter-class differences, but also has complex environmental interference in the port monitoring scenarios. To propel advancements in marine vessel Re-ID technology, SwinTransReID, a framework grounded in the Swin Transformer for marine vessel Re-ID, is introduced. Specifically, the project initially encodes the triplet images separately as a sequence of blocks and construct a baseline model leveraging the Swin Transformer, achieving better performance on the Re-ID benchmark dataset in comparison to convolution neural network (CNN)-based approaches. And it introduces side information embedding (SIE) to further enhance the robust feature-learning capabilities of Swin Transformer, thus, integrating non-visual cues (orientation and type of vessel) and other auxiliary information (hull colour) through the insertion of learnable embedding modules. Additionally, the project presents VesselReID-1656, the first annotated large-scale benchmark dataset for vessel Re-ID in real-world ocean surveillance, comprising 135,866 images of 1656 vessels along with 5 orientations, 12 types, and 17 colours. The proposed method achieves 87.1<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>%</mi>\u0000 </mrow>\u0000 <annotation> $%$</annotation>\u0000 </semantics></math> mAP and 96.1<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>%</mi>\u0000 </mrow>\u0000 <annotation> $%$</annotation>\u0000 </semantics></math> Rank-1 accuracy on the newly-labelled challenging dataset, which surpasses the state-of-the-art (SOTA) method by 1.9<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mi>%</mi>\u0000 </mrow>\u0000 <annotation> $%$</annotation>\u0000 </semantics></math> mAP regarding to performance. Moreover, extensive empirical results demonstrate the superiority of the proposed SwinTransReID on the person Market-1501 dataset, vehicle VeRi-776 dataset, and Boat Re-ID vessel dataset.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143530544","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Feature-Level Compensation and Alignment for Visible-Infrared Person Re-Identification","authors":"Husheng Dong,&nbsp;Ping Lu,&nbsp;Yuanfeng Yang,&nbsp;Xun Sun","doi":"10.1049/cvi2.70005","DOIUrl":"https://doi.org/10.1049/cvi2.70005","url":null,"abstract":"<p>Visible-infrared person re-identification (VI-ReID) aims to match pedestrian images captured by nonoverlapping visible and infrared cameras. Most existing compensation-based methods try to generate images of missing modality from the other ones. However, the generated images often fail to possess enough quality due to severe discrepancies between different modalities. Moreover, it is generally assumed that person images are roughly aligned during the extraction of part-based local features. However, this does not always hold true, typically when they are cropped via inaccurate pedestrian detectors. To alleviate such problems, the authors propose a novel feature-level compensation and alignment network (FCA-Net) for VI-ReID in this paper, which tries to compensate for the missing modality information on the channel-level and align part-based local features. Specifically, the visible and infrared features of low-level subnetworks are first processed by a channel feature compensation (CFC) module, which enforces the network to learn consistent distribution patterns of channel features, and thereby the cross-modality discrepancy is narrowed. To address spatial misalignment, a pairwise relation module (PRM) is introduced to incorporate human structural information into part-based local features, which can significantly enhance the feature discrimination power. Besides, a cross-modality part alignment loss (CPAL) is designed on the basis of a dynamic part matching algorithm, which can promote more accurate local matching. Extensive experiments on three standard VI-ReID datasets are conducted to validate the effectiveness of the proposed method, and the results show that state-of-the-art performance is achieved.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70005","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143481439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Advancements in smart agriculture: A systematic literature review on state-of-the-art plant disease detection with computer vision","authors":"Esra Yilmaz,&nbsp;Sevim Ceylan Bocekci,&nbsp;Cengiz Safak,&nbsp;Kazim Yildiz","doi":"10.1049/cvi2.70004","DOIUrl":"https://doi.org/10.1049/cvi2.70004","url":null,"abstract":"<p>In an era of rapid digital transformation, ensuring sustainable and traceable food production is more crucial than ever. Plant diseases, a major threat to agriculture, lead to significant losses in crops and financial damage. Standard techniques for detecting diseases, though widespread, are lengthy and intensive work, especially in extensive agricultural settings. This systematic literature review examines the cutting-edge technologies in smart agriculture specifically computer vision, robotics, deep learning (DL), and Internet of Things (IoT) that are reshaping plant disease detection and management. By analysing 198 studies published between 2021 and 2023, from an initial pool of 19,838 papers, the authors reveal the dominance of DL, particularly with datasets such as PlantVillage, and highlight critical challenges, including dataset limitations, lack of geographical diversity, and the scarcity of real-world field data. Moreover, the authors explore the promising role of IoT, robotics, and drones in enhancing early disease detection, although the high costs and technological gaps present significant barriers for small-scale farmers, especially in developing countries. Through the preferred reporting items for systematic reviews and meta-analyses methodology, this review synthesises these findings, identifying key trends, uncovering research gaps, and offering actionable insights for the future of plant disease management in smart agriculture.</p>","PeriodicalId":56304,"journal":{"name":"IET Computer Vision","volume":"19 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/cvi2.70004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143423795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}