Skip to Content

2,407 Results Found

  • Feature Paper
  • Article
  • Open Access
2,261 Views
23 Pages

Learning High-Order Features for Fine-Grained Visual Categorization with Causal Inference

  • Yuhang Zhang,
  • Yuan Wan,
  • Jiahui Hao,
  • Zaili Yang and
  • Huanhuan Li

19 April 2025

Recently, causal models have gained significant attention in natural language processing (NLP) and computer vision (CV) due to their capability of capturing features with causal relationships. This study addresses Fine-Grained Visual Categorization (...

(This article belongs to the Special Issue Advances, Challenges, and Applications of Deep Learning Models in Computer Vision and Image Processing and Analysis)
  • Article
  • Open Access
8 Citations
3,422 Views
12 Pages

16 July 2021

Vegetable and fruit recognition can be considered as a fine-grained visual categorization (FGVC) task, which is challenging due to the large intraclass variances and small interclass variances. A mainstream direction to address the challenge is to ex...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
4 Citations
2,699 Views
16 Pages

27 September 2022

In MOOC learning, learners’ emotions have an important impact on the learning effect. In order to solve the problem that learners’ emotions are not obvious in the learning process, we propose a method to identify learner emotion by combin...

(This article belongs to the Special Issue Sensor Based Pattern Recognition and Signal Processing)
  • Article
  • Open Access
4 Citations
4,009 Views
19 Pages

15 September 2022

Unsupervised person re-identification has attracted a lot of attention due to its strong potential to adapt to new environments without manual annotation, but learning to recognise features in disjoint camera views without annotation is still challen...

(This article belongs to the Special Issue Person Re-Identification Based on Computer Vision)
  • Article
  • Open Access
39 Citations
5,427 Views
20 Pages

9 August 2022

Multiple object tracking (MOT) in unmanned aerial vehicle (UAV) videos is a fundamental task and can be applied in many fields. MOT consists of two critical procedures, i.e., object detection and re-identification (ReID). One-shot MOT, which incorpor...

  • Article
  • Open Access
2 Citations
4,227 Views
19 Pages

Fine-Grained Few-Shot Image Classification Based on Feature Dual Reconstruction

  • Shudong Liu,
  • Wenlong Zhong,
  • Furong Guo,
  • Jia Cong and
  • Boyu Gu

Fine-grained few-shot image classification is a popular research area in deep learning. The main goal is to identify subcategories within a broader category using a limited number of samples. The challenge stems from the high intra-class variability...

(This article belongs to the Special Issue Image Processing Based on Convolution Neural Network)
  • Article
  • Open Access
7 Citations
4,517 Views
19 Pages

13 April 2023

Multi-scale feature fusion techniques and covariance pooling have been shown to have positive implications for completing computer vision tasks, including fine-grained image classification. However, existing algorithms that use multi-scale feature fu...

(This article belongs to the Section Physical Sensors)
  • Article
  • Open Access
9 Citations
2,240 Views
17 Pages

Fine-grained image classification is faced with the challenge of significant intra-class differences and subtle similarities between classes, with a limited number of labelled data. Previous few-shot learning approaches, however, often fail to recogn...

(This article belongs to the Special Issue AI/Machine Learning in Computer Vision/Image Processing and Natural Language Processing)
  • Article
  • Open Access
9 Citations
3,744 Views
10 Pages

15 November 2021

Named entity recognition (NER) is a natural language processing task to identify spans that mention named entities and to annotate them with predefined named entity classes. Although many NER models based on machine learning have been proposed, their...

(This article belongs to the Special Issue Current Approaches and Applications in Natural Language Processing)
  • Article
  • Open Access
7 Citations
4,992 Views
18 Pages

Weakly Supervised Fine-Grained Image Classification via Salient Region Localization and Different Layer Feature Fusion

  • Fangxiong Chen,
  • Guoheng Huang,
  • Jiaying Lan,
  • Yanhui Wu,
  • Chi-Man Pun,
  • Wing-Kuen Ling and
  • Lianglun Cheng

6 July 2020

The fine-grained image classification task is about differentiating between different object classes. The difficulties of the task are large intra-class variance and small inter-class variance. For this reason, improving models’ accuracies on t...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
11 Citations
5,112 Views
23 Pages

A Student Facial Expression Recognition Model Based on Multi-Scale and Deep Fine-Grained Feature Attention Enhancement

  • Zhaoyu Shou,
  • Yi Huang,
  • Dongxu Li,
  • Cheng Feng,
  • Huibing Zhang,
  • Yuming Lin and
  • Guangxiang Wu

20 October 2024

In smart classroom environments, accurately recognizing students’ facial expressions is crucial for teachers to efficiently assess students’ learning states, timely adjust teaching strategies, and enhance teaching quality and effectiveness. In this p...

(This article belongs to the Special Issue Machine Learning and Deep Learning in Image/Video Processing and Sensing)
  • Article
  • Open Access
4 Citations
2,898 Views
24 Pages

An Audiovisual Correlation Matching Method Based on Fine-Grained Emotion and Feature Fusion

  • Zhibin Su,
  • Yiming Feng,
  • Jinyu Liu,
  • Jing Peng,
  • Wei Jiang and
  • Jingyu Liu

31 August 2024

Most existing intelligent editing tools for music and video rely on the cross-modal matching technology of the affective consistency or the similarity of feature representations. However, these methods are not fully applicable to complex audiovisual...

(This article belongs to the Special Issue Recent Advances in Smart Mobile Sensing Technology)
  • Article
  • Open Access
3 Citations
2,924 Views
18 Pages

A Principal Component Analysis-Based Feature Optimization Network for Few-Shot Fine-Grained Image Classification

  • Meijia Wang,
  • Boyuan Zheng,
  • Guochao Wang,
  • Junpo Yang,
  • Jin Lu and
  • Weichuan Zhang

27 March 2025

Feature map reconstruction networks (FRN) have demonstrated significant potential by leveraging feature reconstruction. However, the typical process of FRN gives rise to two notable issues. First, FRN exhibits high sensitivity to noise, particularly...

(This article belongs to the Special Issue New Trends in Computer Vision, Deep Learning and Artificial Intelligence)
  • Article
  • Open Access
2 Citations
903 Views
31 Pages

31 March 2026

In disease control and precision management in aquaculture, rapid and accurate identification of common fish diseases is pivotal to mitigating economic losses and ensuring aquaculture profitability. However, fish diseases are characterized by subtle...

(This article belongs to the Special Issue Symmetry and Asymmetry in Computer Vision Under Extreme Environments)
  • Article
  • Open Access
2 Citations
2,349 Views
14 Pages

11 September 2025

In recent years, few-shot fine-grained image classification has shown great potential in addressing data scarcity and distinguishing highly similar categories. However, existing unidirectional reconstruction methods, while enhancing inter-class diffe...

(This article belongs to the Special Issue Advances in Computer Vision and Digital Image Processing)
  • Article
  • Open Access
3 Citations
3,034 Views
19 Pages

A Classification Model for Fine-Grained Silkworm Cocoon Images Based on Bilinear Pooling and Adaptive Feature Fusion

  • Mochen Liu,
  • Xin Hou,
  • Mingrui Shang,
  • Eunice Oluwabunmi Owoola,
  • Guizheng Zhang,
  • Wei Wei,
  • Zhanhua Song and
  • Yinfa Yan

22 December 2024

The quality of silkworm cocoons affects the quality and cost of silk processing. It is necessary to sort silkworm cocoons prior to silk production. Cocoon images consist of fine-grained images with large intra-class differences and small inter-class...

(This article belongs to the Section Artificial Intelligence and Digital Agriculture)
  • Article
  • Open Access
14 Citations
3,773 Views
17 Pages

Scene Uyghur Text Detection Based on Fine-Grained Feature Representation

  • Yiwen Wang,
  • Hornisa Mamat,
  • Xuebin Xu,
  • Alimjan Aysa and
  • Kurban Ubul

9 June 2022

Scene text detection task aims to precisely localize text in natural environments. At present, the application scenarios of text detection topics have gradually shifted from plain document text to more complex natural scenarios. Objects with similar...

(This article belongs to the Topic Applications in Image Analysis and Pattern Recognition)
  • Article
  • Open Access
6 Citations
2,691 Views
13 Pages

An Unbiased Feature Estimation Network for Few-Shot Fine-Grained Image Classification

  • Jiale Wang,
  • Jin Lu,
  • Junpo Yang,
  • Meijia Wang and
  • Weichuan Zhang

3 December 2024

Few-shot fine-grained image classification (FSFGIC) aims to classify subspecies with similar appearances under conditions of very limited data. In this paper, we observe an interesting phenomenon: different types of image data augmentation techniques...

(This article belongs to the Special Issue Computer Vision for Object Detection and Tracking with Sensor-Based Applications)
  • Article
  • Open Access
7 Citations
6,011 Views
14 Pages

31 October 2022

The introduction and application of the Vision Transformer (ViT) has promoted the development of fine-grained visual categorization (FGVC). However, there are some problems when directly applying ViT to FGVC tasks. ViT only classifies using the class...

(This article belongs to the Special Issue Deep Learning for Computer Vision)
  • Article
  • Open Access
7 Citations
6,037 Views
23 Pages

A Chinese Nested Named Entity Recognition Model for Chicken Disease Based on Multiple Fine-Grained Feature Fusion and Efficient Global Pointer

  • Xiajun Wang,
  • Cheng Peng,
  • Qifeng Li,
  • Qinyang Yu,
  • Liqun Lin,
  • Pingping Li,
  • Ronghua Gao,
  • Wenbiao Wu,
  • Ruixiang Jiang and
  • Lei Zhu
  • + 2 authors

20 September 2024

Extracting entities from large volumes of chicken epidemic texts is crucial for knowledge sharing, integration, and application. However, named entity recognition (NER) encounters significant challenges in this domain, particularly due to the prevale...

(This article belongs to the Special Issue Applied Intelligence in Natural Language Processing)
  • Article
  • Open Access
17 Citations
4,057 Views
23 Pages

15 May 2024

With the flourishing development of corpus linguistics and technological revolutions in the AI-powered age, automated essay scoring (AES) models have been intensively developed. However, the intricate relationship between linguistic features and diff...

(This article belongs to the Section Computing and Artificial Intelligence)
  • Article
  • Open Access
16 Citations
4,023 Views
22 Pages

3 May 2024

Unmanned aerial vehicle (UAV) aerial images often present challenges such as small target sizes, high target density, varied shooting angles, and dynamic poses. Existing target detection algorithms exhibit a noticeable performance decline when confro...

  • Article
  • Open Access
38 Citations
3,708 Views
22 Pages

19 September 2022

Combining disease categories and crop species leads to complex intra-class and inter-class differences. Significant intra-class difference and subtle inter-class difference pose a great challenge to high-precision crop disease classification tasks. T...

(This article belongs to the Section Crop Protection, Diseases, Pests and Weeds)
  • Article
  • Open Access
318 Views
19 Pages

21 August 2026

Fine-grained poisonous mushroom recognition in natural scenes is challenging because of complex backgrounds, subtle morphological differences, and the limited interpretability of model decisions. To address these challenges, this paper proposes Att-F...

(This article belongs to the Section Image and Video Processing)
  • Article
  • Open Access
4 Citations
2,159 Views
19 Pages

29 October 2024

Semantic change detection (SCD) is a newly important topic in the field of remote sensing (RS) image interpretation since it provides semantic comprehension for bi-temporal RS images via predicting change regions and change types and has great signif...

(This article belongs to the Special Issue Land Cover Change Detection and Mapping Based on Remote Sensing and Artificial Intelligence)
  • Article
  • Open Access
1,023 Views
29 Pages

27 November 2025

Event-based social network is a novel platform where users establish social relationships and realize interest matching through participation in offline events. However, event recommendation faces severe challenges, including extreme data sparsity du...

  • Article
  • Open Access
3 Citations
3,781 Views
14 Pages

20 January 2022

Fine-grained image retrieval aims at searching relevant images among fine-grained classes given a query. The main difficulty of this task derives from the small interclass distinction and the large intraclass variance of fine-grained images, posing s...

(This article belongs to the Topic Machine and Deep Learning)
  • Article
  • Open Access
1,129 Views
15 Pages

26 February 2025

For daily activity recognition in smart homes, it is possible to reduce the effort required for labeling by transferring a trained model. This involves utilizing a labeled daily activity dataset from one smart home to recognize other activities in an...

(This article belongs to the Section Algorithms for Multidisciplinary Applications)
  • Article
  • Open Access
541 Views
15 Pages

This paper proposes a solution to the challenge of low accuracy in fine-grained vehicle classification, which arises from minimal intra-class feature variations. It introduces TS-Net, a multi-scale convolutional progressive fine-grained vehicle recog...

  • Article
  • Open Access
5 Citations
3,208 Views
14 Pages

Fine-Grained Assessment of COVID-19 Severity Based on Clinico-Radiological Data Using Machine Learning

  • Haipeng Liu,
  • Jiangtao Wang,
  • Yayuan Geng,
  • Kunwei Li,
  • Han Wu,
  • Jian Chen,
  • Xiangfei Chai,
  • Shaolin Li and
  • Dingchang Zheng

Background: The severe and critical cases of COVID-19 had high mortality rates. Clinical features, laboratory data, and radiological features provided important references for the assessment of COVID-19 severity. The machine learning analysis of clin...

(This article belongs to the Section Digital Health)
  • Article
  • Open Access
2 Citations
2,241 Views
21 Pages

Local Diversity-Guided Weakly Supervised Fine-Grained Image Classification Method

  • Yuebo Meng,
  • Xianglong Luo,
  • Hua Zhan,
  • Bo Wang,
  • Shilong Su and
  • Guanghui Liu

25 February 2025

For fine-grained recognition, capturing distinguishable features and effectively utilizing local information play a key role, since the objects of recognition exhibit subtle differences in different subcategories. Finding subtle differences between s...

  • Article
  • Open Access
284 Views
17 Pages

27 August 2026

Choroidal neovascularization (CNV) subtype classification from optical coherence tomography (OCT) images is clinically important because treatment response and disease prognosis vary across subtypes. However, automated classification remains challeng...

(This article belongs to the Special Issue Deep Learning for Image Analysis in Scientific and Engineering Applications)
  • Article
  • Open Access
7 Citations
3,455 Views
19 Pages

22 September 2023

Semantic segmentation of high-resolution remote sensing images holds paramount importance in the field of remote sensing. To better excavate and fully fuse the features in high-resolution remote sensing images, this paper introduces a novel Global an...

(This article belongs to the Special Issue Remote Sensing Image Classification and Semantic Segmentation)
  • Article
  • Open Access
2,544 Views
30 Pages

15 November 2022

Previous network feature extraction methods used for network anomaly detection have some problems, such as being unable to extract features from the original network traffic, or that they can only extract coarse-grained features, as well as that they...

(This article belongs to the Special Issue Network Traffic Security Analysis)
  • Article
  • Open Access
11 Citations
2,433 Views
19 Pages

22 May 2024

In the field of remote sensing image captioning (RSIC), mainstream methods typically adopt an encoder–decoder framework. Methods based on this framework often use only simple feature fusion strategies, failing to fully mine the fine-grained fea...

(This article belongs to the Section Remote Sensing Image Processing)
  • Article
  • Open Access
108 Views
31 Pages

10 October 2026

Few-shot fine-grained image classification aims to recognize unseen fine-grained categories from very few labeled examples. The task is difficult because visually similar classes may differ only in subtle details, while images from the same class can...

(This article belongs to the Special Issue Efficient Learning for Computer Vision: Few-Shot, Weakly Supervised and Unsupervised Approaches)
  • Article
  • Open Access
1,147 Views
20 Pages

SREF: Semantics-Refined Feature Extraction for Long-Term Visual Localization

  • Danfeng Wu,
  • Kaifeng Zhu,
  • Heng Shi,
  • Fenfen Zhou and
  • Minchi Kuang

18 February 2026

Accurate and robust visual localization under changing environments remains a fundamental challenge in autonomous driving and mobile robotics. Traditional handcrafted features often degrade under long-term illumination and viewpoint variations, while...

(This article belongs to the Section Computer Vision and Pattern Recognition)
  • Article
  • Open Access
19 Citations
5,138 Views
15 Pages

11 May 2019

The focus of fine-grained image classification tasks is to ignore interference information and grasp local features. This challenge is what the visual attention mechanism excels at. Firstly, we have constructed a two-level attention convolutional net...

(This article belongs to the Special Issue Advanced Intelligent Imaging Technology)
  • Article
  • Open Access
1 Citations
768 Views
30 Pages

21 April 2026

Fine-grained bird identification is crucial for ecosystem monitoring, species conservation, and habitat assessment. However, in real-world environments, there are challenges such as imbalances in modality quality and interference from background nois...

(This article belongs to the Topic Wildlife Intelligent Monitoring: Advancing Conservation Through Visual and Acoustic Monitoring Technologies)
  • Article
  • Open Access
3 Citations
1,742 Views
29 Pages

DBCA-Net: A Dual-Branch Context-Aware Algorithm for Cattle Face Segmentation and Recognition

  • Xiaopu Feng,
  • Jiaying Zhang,
  • Yongsheng Qi,
  • Liqiang Liu and
  • Yongting Li

27 February 2025

Cattle face segmentation and recognition in complex scenarios pose significant challenges due to insufficient fine-grained feature representation in segmentation networks and limited modeling of salient regions and local–global feature interact...

(This article belongs to the Special Issue Advanced Image Collection, Processing, and Analysis in Crop and Livestock Management)
  • Article
  • Open Access
1 Citations
1,412 Views
15 Pages

A Multimodal Power Sample Feature Migration Method Based on Dual Cross-Modal Information Decoupling

  • Zhenyu Chen,
  • Huaguang Yan,
  • Jianguang Du,
  • Yuhao Zhou,
  • Yi Chen,
  • Yunfeng Yan and
  • Shuai Zhao

10 September 2025

With the rapid development of energy transition and power system informatization, the efficient integration and feature migration of multimodal power data have become critical challenges for intelligent power systems. Existing methods often overlook...

(This article belongs to the Special Issue Applied Computer Vision and Intelligent Computing for Electric Power Systems)
  • Article
  • Open Access
3 Citations
2,119 Views
14 Pages

Extracting fine-grained features from person images has proven crucial in person re-identification (re-ID). Although the research of convolutional neural networks (CNN) has been very successful in person re-ID, due to the small receptive field and do...

  • Article
  • Open Access
2 Citations
1,891 Views
21 Pages

Fine-Grained Air Pollution Inference at Large-Scale Region Level via 3D Spatiotemporal Attention Super-Resolution Model

  • Changqun Li,
  • Shan Tang,
  • Jing Liu,
  • Kai Pan,
  • Zhenyi Xu,
  • Yunbo Zhao and
  • Shuchen Yang

31 January 2025

Air pollution presents a serious hazard to human health and the environment for the global rise in industrialization and urbanization. While fine-grained monitoring is crucial for understanding the formation and control of air pollution and their eff...

(This article belongs to the Special Issue Study of Air Pollution Based on Remote Sensing (2nd Edition))
  • Article
  • Open Access
3 Citations
4,227 Views
17 Pages

4 May 2023

Multi-modal deep learning methods have achieved great improvements in visual grounding; their objective is to localize text-specified objects in images. Most of the existing methods can localize and classify objects with significant appearance differ...

(This article belongs to the Special Issue Big Data Analysis and Management Based on Deep Learning)
  • Article
  • Open Access
41 Citations
7,014 Views
28 Pages

The fine-grained classification of encrypted traffic is important for network security analysis. Malicious attacks are usually encrypted and simulated as normal application or content traffic. Supervised machine learning methods are widely used for t...

(This article belongs to the Section Networks)
  • Article
  • Open Access
11 Citations
3,481 Views
12 Pages

1 April 2023

Many current approaches for image classification concentrate solely on the most prominent features within an image, but in fine-grained image recognition, even subtle features can play a significant role in model classification. In addition, the larg...

(This article belongs to the Special Issue Statistical Machine Learning with High-Dimensional Data and Image Analysis)
  • Article
  • Open Access
36 Citations
9,664 Views
22 Pages

Benefiting from the rapid development of geospatial big data-related technologies, intelligent transportation systems (ITS) have become a part of people’s daily life. Traffic volume forecasting is one of the indispensable tasks in ITS. The spat...

(This article belongs to the Special Issue Deep Learning and Computer Vision for GeoInformation Sciences)
  • Article
  • Open Access
352 Views
34 Pages

2 August 2026

Fine-grained oriented object detection in remote sensing is challenged by extreme scale variation, arbitrary rotations, and dense layouts with structured clutter, where fixed feature selection and RoI extraction often lead to unstable localization an...

(This article belongs to the Special Issue Object Detection in Remote Sensing Imagery)
  • Article
  • Open Access
2 Citations
3,464 Views
21 Pages

Lightweight Semantic Architecture Modeling by 3D Feature Line Detection

  • Shibiao Xu,
  • Jiaxi Sun,
  • Jiguang Zhang,
  • Weiliang Meng and
  • Xiaopeng Zhang

7 April 2023

Existing architecture semantic modeling methods in 3D complex urban scenes continue facing difficulties, such as limited training data, lack of semantic information, and inflexible model processing. Focusing on extracting and adopting accurate semant...

(This article belongs to the Special Issue 3D Information Recovery and 2D Image Processing for Remotely Sensed Optical Images)
  • Article
  • Open Access
115 Citations
12,553 Views
30 Pages

With the development of advanced information and intelligence technologies, precision agriculture has become an effective solution to monitor and prevent crop pests and diseases. However, pest and disease recognition in precision agriculture applicat...

(This article belongs to the Special Issue Application of Decision Support Systems in Agriculture)

of 49