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Fine-grained cross-modal alignment aims to establish precise local correspondences between vision and language, forming a cornerstone for visual question answering and related multimodal applications. Current approaches face challenges in…

Computer Vision and Pattern Recognition · Computer Science 2025-11-04 Xinyu Mao , Junsi Li , Haoji Zhang , Yu Liang , Ming Sun

Multi-view clustering (MVC) has emerged as a powerful technique for extracting valuable insights from data characterized by multiple perspectives or modalities. Despite significant advancements, existing MVC methods struggle with…

Artificial Intelligence · Computer Science 2024-12-24 Lijian Li

Few-Shot Classification(FSC) aims to generalize from base classes to novel classes given very limited labeled samples, which is an important step on the path toward human-like machine learning. State-of-the-art solutions involve learning to…

Computer Vision and Pattern Recognition · Computer Science 2024-09-05 Xiongkun Linghu , Yan Bai , Yihang Lou , Shengsen Wu , Jinze Li , Jianzhong He , Tao Bai

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…

Computer Vision and Pattern Recognition · Computer Science 2024-07-08 Hang Yao , Qiguang Miao , Peipei Zhao , Chaoneng Li , Xin Li , Guanwen Feng , Ruyi Liu

A key challenge in model-free category-level pose estimation is the extraction of contextual object features that generalize across varying instances within a specific category. Recent approaches leverage foundational features to capture…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Weihang Li , Hongli Xu , Junwen Huang , Hyunjun Jung , Peter KT Yu , Nassir Navab , Benjamin Busam

Fine-grained categorisation has been a challenging problem due to small inter-class variation, large intra-class variation and low number of training images. We propose a learning system which first clusters visually similar classes and…

Computer Vision and Pattern Recognition · Computer Science 2015-05-12 Zongyuan Ge , Christopher Mccool , Conrad Sanderson , Peter Corke

Instance segmentation in videos, which aims to segment and track multiple objects in video frames, has garnered a flurry of research attention in recent years. In this paper, we present a novel weakly supervised framework with…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Liqi Yan , Qifan Wang , Siqi Ma , Jingang Wang , Changbin Yu

Face verification can be regarded as a 2-class fine-grained visual recognition problem. Enhancing the feature's discriminative power is one of the key problems to improve its performance. Metric learning technology is often applied to…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Fu Xiong , Yang Xiao , Zhiguo Cao , Yancheng Wang , Joey Tianyi Zhou , Jianxi Wu

Self-supervised monocular depth estimation has been widely studied, owing to its practical importance and recent promising improvements. However, most works suffer from limited supervision of photometric consistency, especially in weak…

Computer Vision and Pattern Recognition · Computer Science 2021-08-20 Hyunyoung Jung , Eunhyeok Park , Sungjoo Yoo

Person re-identification (re-id) aims to match pedestrians observed by disjoint camera views. It attracts increasing attention in computer vision due to its importance to surveillance system. To combat the major challenge of cross-view…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Lin Wu , Yang Wang , Junbin Gao , Xue Li

Fine-grained image classification is a challenging task due to the large intra-class variance and small inter-class variance, aiming at recognizing hundreds of sub-categories belonging to the same basic-level category. Most existing…

Computer Vision and Pattern Recognition · Computer Science 2017-11-29 Xiangteng He , Yuxin Peng

Audio-visual segmentation (AVS) plays a critical role in multimodal machine learning by effectively integrating audio and visual cues to precisely segment objects or regions within visual scenes. Recent AVS methods have demonstrated…

Computer Vision and Pattern Recognition · Computer Science 2025-09-24 Yunzhe Shen , Kai Peng , Leiye Liu , Wei Ji , Jingjing Li , Miao Zhang , Yongri Piao , Huchuan Lu

Real-world applications of machine learning models often confront data distribution shifts, wherein discrepancies exist between the training and test data distributions. In the common multi-domain multi-class setup, as the number of classes…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Haoxiang Wang , Haozhe Si , Huajie Shao , Han Zhao

Weakly-Supervised Concealed Object Segmentation (WSCOS) aims to segment objects well blended with surrounding environments using sparsely-annotated data for model training. It remains a challenging task since (1) it is hard to distinguish…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Chunming He , Kai Li , Yachao Zhang , Guoxia Xu , Longxiang Tang , Yulun Zhang , Zhenhua Guo , Xiu Li

Feature selection aims to identify the most pattern-discriminative feature subset. In prior literature, filter (e.g., backward elimination) and embedded (e.g., Lasso) methods have hyperparameters (e.g., top-K, score thresholding) and tie to…

Machine Learning · Computer Science 2024-03-07 Wangyang Ying , Dongjie Wang , Haifeng Chen , Yanjie Fu

Embedding techniques have become essential components of large databases in the deep learning era. By encoding discrete entities, such as words, items, or graph nodes, into continuous vector spaces, embeddings facilitate more efficient…

Information Retrieval · Computer Science 2024-10-18 Shiwei Li , Zhuoqi Hu , Xing Tang , Haozhao Wang , Shijie Xu , Weihong Luo , Yuhua Li , Xiuqiang He , Ruixuan Li

This paper revisits few-shot 3D point cloud semantic segmentation (FS-PCS), with a focus on two significant issues in the state-of-the-art: foreground leakage and sparse point distribution. The former arises from non-uniform point sampling,…

Computer Vision and Pattern Recognition · Computer Science 2024-03-04 Zhaochong An , Guolei Sun , Yun Liu , Fayao Liu , Zongwei Wu , Dan Wang , Luc Van Gool , Serge Belongie

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…

Computer Vision and Pattern Recognition · Computer Science 2021-02-22 Shaokang Yang , Shuai Liu , Cheng Yang , Changhu Wang

Segmentation of objects in microscopy images is required for many biomedical applications. We introduce object-centric embeddings (OCEs), which embed image patches such that the spatial offsets between patches cropped from the same object…

Machine Learning · Computer Science 2023-10-13 Steffen Wolf , Manan Lalit , Henry Westmacott , Katie McDole , Jan Funke

Music structure analysis (MSA) methods traditionally search for musically meaningful patterns in audio: homogeneity, repetition, novelty, and segment-length regularity. Hand-crafted audio features such as MFCCs or chromagrams are often used…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-03 Ju-Chiang Wang , Jordan B. L. Smith , Wei-Tsung Lu , Xuchen Song