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Point cloud shape completion is a challenging problem in 3D vision and robotics. Existing learning-based frameworks leverage encoder-decoder architectures to recover the complete shape from a highly encoded global feature vector. Though the…

计算机视觉与模式识别 · 计算机科学 2020-07-07 Wenxiao Zhang , Qingan Yan , Chunxia Xiao

We achieve 3D semantic scene labeling by exploring semantic relation between each point and its contextual neighbors through edges. Besides an encoder-decoder branch for predicting point labels, we construct an edge branch to hierarchically…

计算机视觉与模式识别 · 计算机科学 2019-09-24 Li Jiang , Hengshuang Zhao , Shu Liu , Xiaoyong Shen , Chi-Wing Fu , Jiaya Jia

Recent years have witnessed promising results of face detection using deep learning. Despite making remarkable progresses, face detection in the wild remains an open research challenge especially when detecting faces at vastly different…

计算机视觉与模式识别 · 计算机科学 2018-09-11 Jialiang Zhang , Xiongwei Wu , Jianke Zhu , Steven C. H. Hoi

Existing zero-shot 3D point cloud segmentation methods often struggle with limited transferability from seen classes to unseen classes and from semantic to visual space. To alleviate this, we introduce 3D-PointZshotS, a geometry-aware…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Minmin Yang , Huantao Ren , Senem Velipasalar

Open-vocabulary semantic segmentation enables models to recognize and segment objects from arbitrary natural language descriptions, offering the flexibility to handle novel, fine-grained, or functionally defined categories beyond fixed…

计算机视觉与模式识别 · 计算机科学 2025-09-16 Chongyu Wang , Kunlei Jing , Jihua Zhu , Di Wang

We study the problem of unsupervised 3D semantic segmentation on raw point clouds without needing human labels in training. Existing methods usually formulate this problem into learning per-point local features followed by a simple grouping…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Zihui Zhang , Weisheng Dai , Hongtao Wen , Bo Yang

Pathology image segmentation across multiple centers encounters significant challenges due to diverse sources of heterogeneity including imaging modalities, organs, and scanning equipment, whose variability brings representation bias and…

计算机视觉与模式识别 · 计算机科学 2025-05-29 Yuan Zhang , Feng Chen , Yaolei Qi , Guanyu Yang , Huazhu Fu

Local feature detection and description play an important role in many computer vision tasks, which are designed to detect and describe keypoints in "any scene" and "any downstream task". Data-driven local feature learning methods need to…

计算机视觉与模式识别 · 计算机科学 2025-10-16 Jingqian Wu , Rongtao Xu , Zach Wood-Doughty , Changwei Wang , Shibiao Xu , Edmund Y. Lam

In this work, a language-level Semantics Conditioned framework for 3D Point cloud segmentation, called SeCondPoint, is proposed, where language-level semantics are introduced to condition the modeling of point feature distribution as well…

计算机视觉与模式识别 · 计算机科学 2022-03-31 Bo Liu , Shuang Deng , Qiulei Dong , Zhanyi Hu

Semantic segmentation plays a crucial role in enabling machines to understand and interpret visual scenes at a pixel level. While traditional segmentation methods have achieved remarkable success, their generalization to diverse scenes and…

计算机视觉与模式识别 · 计算机科学 2025-01-29 Philip Hughes , Larry Burns , Luke Adams

Automated semantic segmentation and object detection are of great importance in geospatial data analysis. However, supervised machine learning systems such as convolutional neural networks require large corpora of annotated training data.…

计算机视觉与模式识别 · 计算机科学 2021-07-20 Michael Kölle , Dominik Laupheimer , Stefan Schmohl , Norbert Haala , Franz Rottensteiner , Jan Dirk Wegner , Hugo Ledoux

Few-shot segmentation (FSS) aims to segment novel classes under the guidance of limited support samples by a meta-learning paradigm. Existing methods mainly mine references from support images as meta guidance. However, due to intra-class…

计算机视觉与模式识别 · 计算机科学 2025-11-21 Jin Wang , Bingfeng Zhang , Jian Pang , Mengyu Liu , Honglong Chen , Weifeng Liu

LiDAR and camera are two critical sensors for multi-modal 3D semantic segmentation and are supposed to be fused efficiently and robustly to promise safety in various real-world scenarios. However, existing multi-modal methods face two key…

计算机视觉与模式识别 · 计算机科学 2023-10-16 Feng Jiang , Chaoping Tu , Gang Zhang , Jun Li , Hanqing Huang , Junyu Lin , Di Feng , Jian Pu

Fine-grained image classification, which aims to distinguish images with subtle distinctions, is a challenging task due to two main issues: lack of sufficient training data for every class and difficulty in learning discriminative features…

计算机视觉与模式识别 · 计算机科学 2017-07-05 Aoxue Li , Zhiwu Lu , Liwei Wang , Tao Xiang , Xinqi Li , Ji-Rong Wen

Facial Image inpainting aim is to restore the missing or corrupted regions in face images while preserving identity, structural consistency and photorealistic image quality, a task specifically created for photo restoration. Though there…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Abhigyan Bhattacharya , Hiranmoy Roy , Debotosh Bhattacharjee

Semantic segmentation of 3D geospatial point clouds is fundamental to remote sensing applications, yet domain shifts caused by regional and acquisition-related variations often degrade model performance. Although domain adaptation can…

计算机视觉与模式识别 · 计算机科学 2026-05-27 Yuan Gao , Di Cao , Xiaohuan Xi , Sheng Nie , Shaobo Xia , Cheng Wang

In autonomous driving, 3D LiDAR plays a crucial role in understanding the vehicle's surroundings. However, the newly emerged, unannotated objects presents few-shot learning problem for semantic segmentation. This paper addresses the…

计算机视觉与模式识别 · 计算机科学 2024-08-29 Junbao Zhou , Jilin Mei , Pengze Wu , Liang Chen , Fangzhou Zhao , Xijun Zhao , Yu Hu

Fine-grained domain generalization (FGDG) is a more challenging task than traditional DG tasks due to its small inter-class variations and relatively large intra-class disparities. When domain distribution changes, the vulnerability of…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Wenlong Yu , Dongyue Chen , Qilong Wang , Qinghua Hu

Foreground segmentation is a fundamental task in computer vision, encompassing various subdivision tasks. Previous research has typically designed task-specific architectures for each task, leading to a lack of unification. Moreover, they…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Zuyao You , Lingyu Kong , Lingchen Meng , Zuxuan Wu

Semantic image segmentation, the process of classifying each pixel in an image into a particular class, plays an important role in many visual understanding systems. As the predominant criterion for evaluating the performance of statistical…

计算机视觉与模式识别 · 计算机科学 2023-12-12 Reza Azad , Moein Heidary , Kadir Yilmaz , Michael Hüttemann , Sanaz Karimijafarbigloo , Yuli Wu , Anke Schmeink , Dorit Merhof