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Generating robust and reliable correspondences across images is a fundamental task for a diversity of applications. To capture context at both global and local granularity, we propose ASpanFormer, a Transformer-based detector-free matcher…

计算机视觉与模式识别 · 计算机科学 2022-08-31 Hongkai Chen , Zixin Luo , Lei Zhou , Yurun Tian , Mingmin Zhen , Tian Fang , David Mckinnon , Yanghai Tsin , Long Quan

Constructing drivable and photorealistic 3D head avatars has become a central task in AR/XR, enabling immersive and expressive user experiences. With the emergence of high-fidelity and efficient representations such as 3D Gaussians, recent…

图形学 · 计算机科学 2025-12-25 Jaeseong Lee , Junyeong Ahn , Taewoong Kang , Jaegul Choo

Vision Transformers (ViT)s have recently become popular due to their outstanding modeling capabilities, in particular for capturing long-range information, and scalability to dataset and model sizes which has led to state-of-the-art…

图像与视频处理 · 电气工程与系统科学 2022-04-06 Ali Hatamizadeh , Ziyue Xu , Dong Yang , Wenqi Li , Holger Roth , Daguang Xu

Implicit neural networks have emerged as a crucial technology in 3D surface reconstruction. To reconstruct continuous surfaces from discrete point clouds, encoding the input points into regular grid features (plane or volume) has been…

计算机视觉与模式识别 · 计算机科学 2024-01-05 Shengtao Li , Ge Gao , Yudong Liu , Yu-Shen Liu , Ming Gu

Hydrometric forecasting is crucial for managing water resources, flood prediction, and environmental protection. Water stations are interconnected, and this connectivity influences the measurements at other stations. However, the dynamic…

计算机视觉与模式识别 · 计算机科学 2024-09-24 Naghmeh Shafiee Roudbari , Ursula Eicker , Charalambos Poullis , Zachary Patterson

In the hyperspectral image classification (HSIC) task, the most commonly used model validation paradigm is partitioning the training-test dataset through pixel-wise random sampling. By training on a small amount of data, the deep learning…

计算机视觉与模式识别 · 计算机科学 2024-10-23 Enzhe Zhao , Zhichang Guo , Shengzhu Shi , Yao Li , Jia Li , Dazhi Zhang

Learning representations on large-sized graphs is a long-standing challenge due to the inter-dependence nature involved in massive data points. Transformers, as an emerging class of foundation encoders for graph-structured data, have shown…

机器学习 · 计算机科学 2024-08-19 Qitian Wu , Wentao Zhao , Chenxiao Yang , Hengrui Zhang , Fan Nie , Haitian Jiang , Yatao Bian , Junchi Yan

Multi-sensor modal fusion has demonstrated strong advantages in 3D object detection tasks. However, existing methods that fuse multi-modal features require transforming features into the bird's eye view space and may lose certain…

计算机视觉与模式识别 · 计算机科学 2023-10-10 Chunyong Hu , Hang Zheng , Kun Li , Jianyun Xu , Weibo Mao , Maochun Luo , Lingxuan Wang , Mingxia Chen , Qihao Peng , Kaixuan Liu , Yiru Zhao , Peihan Hao , Minzhe Liu , Kaicheng Yu

Recently, there has been growing interest in the capability of multimodal large language models (MLLMs) to process high-resolution images. A common approach currently involves dynamically cropping the original high-resolution image into…

计算机视觉与模式识别 · 计算机科学 2025-05-01 Shiding Zhu , Wenhui Dong , Jun Song , Yingbo Wang , Yanan Guo , Bo Zheng

The adoption of Vision Transformers (ViTs) based architectures represents a significant advancement in 3D Medical Image (MI) segmentation, surpassing traditional Convolutional Neural Network (CNN) models by enhancing global contextual…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Shehan Perera , Pouyan Navard , Alper Yilmaz

Real-world graphs naturally exhibit hierarchical or cyclical structures that are unfit for the typical Euclidean space. While there exist graph neural networks that leverage hyperbolic or spherical spaces to learn representations that embed…

机器学习 · 计算机科学 2023-09-11 Sungjun Cho , Seunghyuk Cho , Sungwoo Park , Hankook Lee , Honglak Lee , Moontae Lee

Existing weakly supervised video violence detection (VVD) methods primarily rely on Euclidean representation learning, which often struggles to distinguish visually similar yet semantically distinct events due to limited hierarchical…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Jiaxu Leng , Zhanjie Wu , Mingpi Tan , Mengjingcheng Mo , Jiankang Zheng , Qingqing Li , Ji Gan , Xinbo Gao

Learning good image representations that are beneficial to downstream tasks is a challenging task in computer vision. As such, a wide variety of self-supervised learning approaches have been proposed. Among them, contrastive learning has…

计算机视觉与模式识别 · 计算机科学 2023-02-06 Yun Yue , Fangzhou Lin , Kazunori D Yamada , Ziming Zhang

Graph-structured data are widespread in real-world applications, such as social networks, recommender systems, knowledge graphs, chemical molecules etc. Despite the success of Euclidean space for graph-related learning tasks, its ability to…

机器学习 · 计算机科学 2022-11-09 Min Zhou , Menglin Yang , Lujia Pan , Irwin King

Recently, a growing number of work design unsupervised paradigms for point cloud processing to alleviate the limitation of expensive manual annotation and poor transferability of supervised methods. Among them, CrossPoint follows the…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Hongyu Sun , Yongcai Wang , Xudong Cai , Xuewei Bai , Deying Li

Hyperbolic spaces have recently gained momentum in the context of machine learning due to their high capacity and tree-likeliness properties. However, the representational power of hyperbolic geometry is not yet on par with Euclidean…

机器学习 · 计算机科学 2018-06-29 Octavian-Eugen Ganea , Gary Bécigneul , Thomas Hofmann

This paper investigates the notion of learning user and item representations in non-Euclidean space. Specifically, we study the connection between metric learning in hyperbolic space and collaborative filtering by exploring Mobius…

信息检索 · 计算机科学 2019-12-02 Lucas Vinh Tran , Yi Tay , Shuai Zhang , Gao Cong , Xiaoli Li

Fine-grained visual classification (FGVC) which aims at recognizing objects from subcategories is a very challenging task due to the inherently subtle inter-class differences. Most existing works mainly tackle this problem by reusing the…

计算机视觉与模式识别 · 计算机科学 2021-12-03 Ju He , Jie-Neng Chen , Shuai Liu , Adam Kortylewski , Cheng Yang , Yutong Bai , Changhu Wang

Vision Transformers (ViTs) have been shown to enhance visual recognition through modeling long-range dependencies with multi-head self-attention (MHSA), which is typically formulated as Query-Key-Value computation. However, the attention…

计算机视觉与模式识别 · 计算机科学 2023-11-28 Chongjian Ge , Xiaohan Ding , Zhan Tong , Li Yuan , Jiangliu Wang , Yibing Song , Ping Luo

Efficient modeling of relational data arising in physical, social, and information sciences is challenging due to complicated dependencies within the data. In this work, we build off of semi-implicit graph variational auto-encoders to…

机器学习 · 计算机科学 2021-03-12 Ali Lotfi Rezaabad , Rahi Kalantari , Sriram Vishwanath , Mingyuan Zhou , Jonathan Tamir