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The crux of resolving fine-grained visual classification (FGVC) lies in capturing discriminative and class-specific cues that correspond to subtle visual characteristics. Recently, frequency decomposition/transform based approaches have…

计算机视觉与模式识别 · 计算机科学 2025-11-14 Qin Xu , Lili Zhu , Xiaoxia Cheng , Bo Jiang

A major challenge in Fine-Grained Visual Classification (FGVC) is distinguishing various categories with high inter-class similarity by learning the feature that differentiate the details. Conventional cross entropy trained Convolutional…

机器学习 · 计算机科学 2021-03-17 Runkai Zheng , Zhijia Yu , Yinqi Zhang , Chris Ding , Hei Victor Cheng , Li Liu

Fine-grained ship classification in remote sensing (RS-FGSC) poses a significant challenge due to the high similarity between classes and the limited availability of labeled data, limiting the effectiveness of traditional supervised…

计算机视觉与模式识别 · 计算机科学 2024-12-02 Long Lan , Fengxiang Wang , Xiangtao Zheng , Zengmao Wang , Xinwang Liu

We present our approach for the SnakeCLEF 2024 competition to predict snake species from images. We explore and use Meta's DINOv2 vision transformer model for feature extraction to tackle species' high variability and visual similarity in a…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Anthony Miyaguchi , Murilo Gustineli , Austin Fischer , Ryan Lundqvist

Fine-grained category discovery using only coarse-grained supervision is a cost-effective yet challenging task. Previous training methods focus on aligning query samples with positive samples and distancing them from negatives. They often…

人工智能 · 计算机科学 2025-02-07 Chang Tian , Matthew B. Blaschko , Wenpeng Yin , Mingzhe Xing , Yinliang Yue , Marie-Francine Moens

A reliable fault diagnosis system should not only accurately classify known health states but also effectively identify unknown faults. In multimode processes, samples belonging to the same health state often show multiple cluster…

机器学习 · 计算机科学 2025-11-13 Guangqiang Li , M. Amine Atoui , Xiangshun Li

The real-world data distribution is essentially long-tailed, which poses great challenge to the deep model. In this work, we propose a new method, Gradual Balanced Loss and Adaptive Feature Generator (GLAG) to alleviate imbalance. GLAG…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Zihan Zhang , Xiang Xiang

Fine-grained image recognition is very challenging due to the difficulty of capturing both semantic global features and discriminative local features. Meanwhile, these two features are not easy to be integrated, which are even conflicting…

计算机视觉与模式识别 · 计算机科学 2021-02-22 Shaokang Yang , Shuai Liu , Cheng Yang , Changhu Wang

Generalized Category Discovery (GCD) is an open-world problem that clusters unlabeled data by leveraging knowledge from partially labeled categories. A key challenge is that unlabeled data may contain both known and novel categories.…

计算机视觉与模式识别 · 计算机科学 2025-10-01 Haiyang Zheng , Nan Pu , Wenjing Li , Nicu Sebe , Zhun Zhong

Fine-grained classification aims at distinguishing between items with similar global perception and patterns, but that differ by minute details. Our primary challenges come from both small inter-class variations and large intra-class…

计算机视觉与模式识别 · 计算机科学 2021-03-23 Charles A. Kantor , Marta Skreta , Brice Rauby , Léonard Boussioux , Emmanuel Jehanno , Alexandra Luccioni , David Rolnick , Hugues Talbot

Self-supervised learning is emerging in fine-grained visual recognition with promising results. However, existing self-supervised learning methods are often susceptible to irrelevant patterns in self-supervised tasks and lack the capability…

计算机视觉与模式识别 · 计算机科学 2024-12-03 ShuaiHeng Li , Qing Cai , Fan Zhang , Menghuan Zhang , Yangyang Shu , Zhi Liu , Huafeng Li , Lingqiao Liu

Fine-grained visual parsing, including fine-grained part segmentation and fine-grained object recognition, has attracted considerable critical attention due to its importance in many real-world applications, e.g., agriculture, remote…

计算机视觉与模式识别 · 计算机科学 2024-02-23 Yifan Zhao , Jia Li , Yonghong Tian

As an important research topic in computer vision, fine-grained classification which aims to recognition subordinate-level categories has attracted significant attention. We propose a novel region based ensemble learning network for…

计算机视觉与模式识别 · 计算机科学 2019-02-12 Weikuang Li , Tian Wang , Chuanyun Wang , Guangcun Shan , Mengyi Zhang , Hichem Snoussi

The core for tackling the fine-grained visual categorization (FGVC) is to learn subtle yet discriminative features. Most previous works achieve this by explicitly selecting the discriminative parts or integrating the attention mechanism via…

计算机视觉与模式识别 · 计算机科学 2022-03-02 Jun Wang , Xiaohan Yu , Yongsheng Gao

Different from large-scale classification tasks, fine-grained visual classification is a challenging task due to two critical problems: 1) evident intra-class variances and subtle inter-class differences, and 2) overfitting owing to fewer…

计算机视觉与模式识别 · 计算机科学 2024-07-08 Hang Yao , Qiguang Miao , Peipei Zhao , Chaoneng Li , Xin Li , Guanwen Feng , Ruyi Liu

Fine-grained visual classification is a challenging task that recognizes the sub-classes belonging to the same meta-class. Large inter-class similarity and intra-class variance is the main challenge of this task. Most exiting methods try to…

计算机视觉与模式识别 · 计算机科学 2021-02-02 Dongliang Chang , Yixiao Zheng , Zhanyu Ma , Ruoyi Du , Kongming Liang

Fine-grained bird image classification (FBIC) is not only of great significance for ecological monitoring and species identification, but also holds broad research value in the fields of image recognition and fine-grained visual modeling.…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Zheng Wang

We evaluate the effectiveness of semi-supervised learning (SSL) on a realistic benchmark where data exhibits considerable class imbalance and contains images from novel classes. Our benchmark consists of two fine-grained classification…

计算机视觉与模式识别 · 计算机科学 2021-04-02 Jong-Chyi Su , Zezhou Cheng , Subhransu Maji

In many practical applications, coarse-grained labels are readily available compared to fine-grained labels that reflect subtle differences between classes. However, existing methods cannot leverage coarse labels to infer fine-grained…

机器学习 · 计算机科学 2024-06-18 Matej Grcić , Artyom Gadetsky , Maria Brbić

Fine-grained image classification has emerged as a significant challenge because objects in such images have small inter-class visual differences but with large variations in pose, lighting, and viewpoints, etc. Most existing work focuses…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Xuelu Li , Vishal Monga