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Fine-grained visual classification is a challenging task due to the high similarity between categories and distinct differences among data within one single category. To address the challenges, previous strategies have focused on localizing…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Po-Yung Chou , Yu-Yung Kao , Cheng-Hung Lin

Unsupervised learning technology has caught up with or even surpassed supervised learning technology in general object classification (GOC) and person re-identification (re-ID). However, it is found that the unsupervised learning of…

Computer Vision and Pattern Recognition · Computer Science 2022-03-02 Jiabao Wang , Yang Li , Xiu-Shen Wei , Hang Li , Zhuang Miao , Rui Zhang

FungiCLEF 2024 addresses the fine-grained visual categorization (FGVC) of fungi species, with a focus on identifying poisonous species. This task is challenging due to the size and class imbalance of the dataset, subtle inter-class…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Christopher Chiu , Maximilian Heil , Teresa Kim , Anthony Miyaguchi

The goal of Feature Selection - comprising filter, wrapper, and embedded approaches - is to find the optimal feature subset for designated downstream tasks. Nevertheless, current feature selection methods are limited by: 1) the selection…

Machine Learning · Computer Science 2023-09-18 Meng Xiao , Dongjie Wang , Min Wu , Pengfei Wang , Yuanchun Zhou , Yanjie Fu

Classifying the sub-categories of an object from the same super-category (e.g., bird) in a fine-grained visual classification (FGVC) task highly relies on mining multiple discriminative features. Existing approaches mainly tackle this…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Yifeng Ding , Shuwei Dong , Yujun Tong , Zhanyu Ma , Bo Xiao , Haibin Ling

Coreset selection aims to identify a small yet highly informative subset of data, thereby enabling more efficient model training while reducing storage overhead. Recently, this capability has been leveraged to tackle the challenges of…

Machine Learning · Computer Science 2025-11-19 Hanyu Zhang , Zhen Xing , Ruian He , Wenxuan Yang , Chenxi Ma , Weimin Tan , Bo Yan

Fine-Grained Visual Classification(FGVC) is the task that requires recognizing the objects belonging to multiple subordinate categories of a super-category. Recent state-of-the-art methods usually design sophisticated learning pipelines to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-08 Qishuai Diao , Yi Jiang , Bin Wen , Jia Sun , Zehuan Yuan

Few-shot fine-grained visual classification (FGVC) aims to leverage limited data to enable models to discriminate subtly distinct categories. Recent works mostly finetuned the pre-trained visual language models to achieve performance gain,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Hongyu Guo , Xiangzhao Hao , Jiarui Guo , Haiyun Guo , Jinqiao Wang , Tat-Seng Chua

Fine-grained visual classification (FGVC) involves categorizing fine subdivisions within a broader category, which poses challenges due to subtle inter-class discrepancies and large intra-class variations. However, prevailing approaches…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Xin Jiang , Hao Tang , Junyao Gao , Xiaoyu Du , Shengfeng He , Zechao Li

Fine-Grained Visual Classification (FGVC) is an important computer vision problem that involves small diversity within the different classes, and often requires expert annotators to collect data. Utilizing this notion of small visual…

Computer Vision and Pattern Recognition · Computer Science 2018-09-24 Abhimanyu Dubey , Otkrist Gupta , Ramesh Raskar , Nikhil Naik

Aiming at improving performance of visual classification in a cost-effective manner, this paper proposes an incremental semi-supervised learning paradigm called Deep Co-Space (DCS). Unlike many conventional semi-supervised learning methods…

Computer Vision and Pattern Recognition · Computer Science 2017-08-01 Ziliang Chen , Keze Wang , Xiao Wang , Pai Peng , Ebroul Izquierdo , Liang Lin

Fine-grained visual categorization (FGVC) is challenging due in part to the fact that it is often difficult to acquire an enough number of training samples. To employ large models for FGVC without suffering from overfitting, existing…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Yabin Zhang , Hui Tang , Kui Jia

Fine-grained visual categorization (FGVC) aims at recognizing objects from similar subordinate categories, which is challenging and practical for human's accurate automatic recognition needs. Most FGVC approaches focus on the attention…

Computer Vision and Pattern Recognition · Computer Science 2022-09-01 Hongbo Sun , Xiangteng He , Yuxin Peng

Generalized Few-shot Semantic Segmentation (GFSS) aims to segment each image pixel into either base classes with abundant training examples or novel classes with only a handful of (e.g., 1-5) training images per class. Compared to the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Zhihe Lu , Sen He , Da Li , Yi-Zhe Song , Tao Xiang

Weak feature representation problem has influenced the performance of few-shot classification task for a long time. To alleviate this problem, recent researchers build connections between support and query instances through embedding patch…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Jinxiang Lai , Siqian Yang , Junhong Zhou , Wenlong Wu , Xiaochen Chen , Jun Liu , Bin-Bin Gao , Chengjie Wang

Few-shot segmentation (FSS) is a dense prediction task that aims to infer the pixel-wise labels of unseen classes using only a limited number of annotated images. The key challenge in FSS is to classify the labels of query pixels using…

Computer Vision and Pattern Recognition · Computer Science 2023-08-23 Wenbo Xu , Huaxi Huang , Ming Cheng , Litao Yu , Qiang Wu , Jian Zhang

Fine-Grained Visual Recognition (FGVR) tackles the problem of distinguishing highly similar categories. One of the main approaches to FGVR, namely subset learning, tries to leverage information from existing class taxonomies to improve the…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Pablo Villacorta , Jesús M. Rodríguez-de-Vera , Marc Bolaños , Ignacio Sarasúa , Bhalaji Nagarajan , Petia Radeva

Learning based video compression attracts increasing attention in the past few years. The previous hybrid coding approaches rely on pixel space operations to reduce spatial and temporal redundancy, which may suffer from inaccurate motion…

Image and Video Processing · Electrical Eng. & Systems 2021-08-24 Zhihao Hu , Guo Lu , Dong Xu

Human action video recognition has recently attracted more attention in applications such as video security and sports posture correction. Popular solutions, including graph convolutional networks (GCNs) that model the human skeleton as a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-01 Zhendong Liu , Haifeng Xia , Tong Guo , Libo Sun , Ming Shao , Siyu Xia

Fine-grained visual classification aims to recognize objects belonging to many subordinate categories of a supercategory, where appearance alone often fails to distinguish highly similar classes. We propose a unified framework that…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Sumit Mamtani , Yash Thesia