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Achieving a balance between accuracy and efficiency is a critical challenge in facial landmark detection (FLD). This paper introduces Parallel Optimal Position Search (POPoS), a high-precision encoding-decoding framework designed to address…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Chong-Yang Xiang , Jun-Yan He , Zhi-Qi Cheng , Xiao Wu , Xian-Sheng Hua

Place recognition plays a crucial role in re-localization and loop closure detection tasks for robots and vehicles. This paper seeks a well-defined global descriptor for LiDAR-based place recognition. Compared to local descriptors, global…

Robotics · Computer Science 2022-09-28 Yongzhi Fan , Xin Du , Lun Luo , Jizhong Shen

Current visual navigation strategies mainly follow an exploration-first and then goal-directed navigation paradigm. This exploratory phase inevitably compromises the overall efficiency of navigation. Recent studies propose leveraging floor…

Robotics · Computer Science 2026-01-21 Weiqi Huang , Jiaxin Li , Zan Wang , Huijun Di , Wei Liang , Zhu Yang

Recent advances in image-level self-supervised learning (SSL) have made significant progress, yet learning dense representations for patches remains challenging. Mainstream methods encounter an over-dispersion phenomenon that patches from…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Peisong Wen , Qianqian Xu , Siran Dai , Runmin Cong , Qingming Huang

Visual place recognition is a challenging task for autonomous driving and robotics, which is usually considered as an image retrieval problem. A commonly used two-stage strategy involves global retrieval followed by re-ranking using…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yanqing Shen , Sanping Zhou , Jingwen Fu , Ruotong Wang , Shitao Chen , Nanning Zheng

The success of deep learning heavily depends on the availability of large labeled training sets. However, it is hard to get large labeled datasets in medical image domain because of the strict privacy concern and costly labeling efforts.…

Computer Vision and Pattern Recognition · Computer Science 2021-09-30 Dewen Zeng , Yawen Wu , Xinrong Hu , Xiaowei Xu , Haiyun Yuan , Meiping Huang , Jian Zhuang , Jingtong Hu , Yiyu Shi

Contrastive learning has shown promising potential in self-supervised spatio-temporal representation learning. Most works naively sample different clips to construct positive and negative pairs. However, we observe that this formulation…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Shuangrui Ding , Rui Qian , Hongkai Xiong

Generalized intent discovery aims to extend a closed-set in-domain intent classifier to an open-world intent set including in-domain and out-of-domain intents. The key challenges lie in pseudo label disambiguation and representation…

Computation and Language · Computer Science 2023-05-30 Yutao Mou , Xiaoshuai Song , Keqing He , Chen Zeng , Pei Wang , Jingang Wang , Yunsen Xian , Weiran Xu

Cross-view geo-localization aims at localizing a ground-level query image by matching it to its corresponding geo-referenced aerial view. In real-world scenarios, the task requires accommodating diverse ground images captured by users with…

Computer Vision and Pattern Recognition · Computer Science 2024-09-06 Li Mi , Chang Xu , Javiera Castillo-Navarro , Syrielle Montariol , Wen Yang , Antoine Bosselut , Devis Tuia

Accurate localization on autonomous driving cars is essential for autonomy and driving safety, especially for complex urban streets and search-and-rescue subterranean environments where high-accurate GPS is not available. However current…

Computer Vision and Pattern Recognition · Computer Science 2021-08-31 Peng Yin , Lingyun Xu , Ziyue Feng , Anton Egorov , Bing Li

Most multi-view clustering methods are limited by shallow models without sound nonlinear information perception capability, or fail to effectively exploit complementary information hidden in different views. To tackle these issues, we…

Machine Learning · Computer Science 2022-10-14 Fu Lele , Zhang Lei , Yang Jinghua , Chen Chuan , Zhang Chuanfu , Zheng Zibin

Vision-language models (VLMs) have demonstrated strong cross-modal capabilities, yet most work remains limited to 2D data and assumes binary supervision (i.e., positive vs. negative pairs), overlooking the continuous and structured…

Computer Vision and Pattern Recognition · Computer Science 2025-11-06 Ailar Mahdizadeh , Puria Azadi Moghadam , Xiangteng He , Shahriar Mirabbasi , Panos Nasiopoulos , Leonid Sigal

Visualization methods based on the nearest neighbor graph, such as t-SNE or UMAP, are widely used for visualizing high-dimensional data. Yet, these approaches only produce meaningful results if the nearest neighbors themselves are…

Machine Learning · Computer Science 2024-06-06 Jan Niklas Böhm , Philipp Berens , Dmitry Kobak

Category-level pose estimation is a challenging task with many potential applications in computer vision and robotics. Recently, deep-learning-based approaches have made great progress, but are typically hindered by the need for large…

Computer Vision and Pattern Recognition · Computer Science 2023-11-27 Pengyuan Wang , Takuya Ikeda , Robert Lee , Koichi Nishiwaki

Domain adaptive semantic segmentation attempts to make satisfactory dense predictions on an unlabeled target domain by utilizing the supervised model trained on a labeled source domain. In this work, we propose Semantic-Guided Pixel…

Computer Vision and Pattern Recognition · Computer Science 2023-02-21 Binhui Xie , Shuang Li , Mingjia Li , Chi Harold Liu , Gao Huang , Guoren Wang

Data-Efficient GANs (DE-GANs), which aim to learn generative models with a limited amount of training data, encounter several challenges for generating high-quality samples. Since data augmentation strategies have largely alleviated the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Ziqiang Li , Chaoyue Wang , Heliang Zheng , Jing Zhang , Bin Li

Most semantic segmentation models treat semantic segmentation as a pixel-wise classification task and use a pixel-wise classification error as their optimization criterions. However, the pixel-wise error ignores the strong dependencies…

Computer Vision and Pattern Recognition · Computer Science 2019-10-22 Shuai Zhao , Boxi Wu , Wenqing Chu , Yao Hu , Deng Cai

This paper proposes a novel logo image recognition approach incorporating a localization technique based on reinforcement learning. Logo recognition is an image classification task identifying a brand in an image. As the size and position…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Masato Fujitake

Geometry foundation models have significantly advanced dense geometric SLAM, yet existing systems often lack deep semantic understanding and robust loop closure capabilities. Meanwhile, contemporary semantic mapping approaches are…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Tingyang Xiao , Liu Liu , Wei Feng , Zhengyu Zou , Xiaolin Zhou , Wei Sui , Hao Li , Dingwen Zhang , Zhizhong Su

Graph Contrastive Learning (GCL) has emerged as a powerful tool for extracting consistent representations from graphs, independent of labeled information. However, existing methods predominantly focus on undirected graphs, disregarding the…

Machine Learning · Computer Science 2025-10-21 Daohan Su , Yang Zhang , Xunkai Li , Rong-Hua Li , Guoren Wang