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Accurate localization and mapping in outdoor environments remains challenging when using consumer-grade hardware, particularly with rolling-shutter cameras and low-precision inertial navigation systems (INS). We present a novel semantic…

机器人学 · 计算机科学 2025-04-04 Yuchen Zhang , Miao Fan , Shengtong Xu , Xiangzeng Liu , Haoyi Xiong

Noisy, partially overlapping data and the need for real-time processing pose major challenges for rigid registration. Considering that feature-based matching can handle large transformation differences but suffers from limited accuracy,…

机器人学 · 计算机科学 2026-05-18 Jiayi Li , Yuxin Yao , Qiuhang Lu , Juyong Zhang

Semantic segmentation of point clouds, aiming to assign each point a semantic category, is critical to 3D scene understanding.Despite of significant advances in recent years, most of existing methods still suffer from either the…

计算机视觉与模式识别 · 计算机科学 2023-06-02 Chen Chen , Yisen Wang , Honghua Chen , Xuefeng Yan , Dayong Ren , Yanwen Guo , Haoran Xie , Fu Lee Wang , Mingqiang Wei

Point cloud registration is a fundamental task in 3D vision. Most existing methods only use geometric information for registration. Recently proposed RGB-D registration methods primarily focus on feature fusion or improving feature…

计算机视觉与模式识别 · 计算机科学 2025-12-01 Congjia Chen , Shen Yan , Yufu Qu

Many types of 3D acquisition sensors have emerged in recent years and point cloud has been widely used in many areas. Accurate and fast registration of cross-source 3D point clouds from different sensors is an emerged research problem in…

计算机视觉与模式识别 · 计算机科学 2019-03-13 Xiaoshui Huang , Lixin Fan , Qiang Wu , Jian Zhang , Chun Yuan

The neighbor-based method has become a powerful tool to handle the outlier detection problem, which aims to infer the abnormal degree of the sample based on the compactness of the sample and its neighbors. However, the existing methods…

机器学习 · 计算机科学 2024-05-30 Zhuang Qi , Junlin Zhang , Xiaming Chen , Xin Qi

We present a novel mathematical optimization framework for outlier detection in multimodal datasets, extending Support Vector Data Description approaches. We provide a primal formulation, in the shape of a Mixed Integer Second Order Cone…

最优化与控制 · 数学 2025-07-16 Víctor Blanco , Inmaculada Espejo , Raúl Páez , Antonio M. Rodríguez-Chía

As a fundamental yet challenging problem in intelligent transportation systems, point cloud registration attracts vast attention and has been attained with various deep learning-based algorithms. The unsupervised registration algorithms…

计算机视觉与模式识别 · 计算机科学 2023-04-14 Dongrui Liu , Chuanchuan Chen , Changqing Xu , Robert Qiu , Lei Chu

Interpreting objects with basic geometric primitives has long been studied in computer vision. Among geometric primitives, superquadrics are well known for their ability to represent a wide range of shapes with few parameters. However, as…

计算机视觉与模式识别 · 计算机科学 2023-07-07 Weixiao Liu , Yuwei Wu , Sipu Ruan , Gregory S. Chirikjian

Outlier detection is the identification of points in a dataset that do not conform to the norm. Outlier detection is highly sensitive to the choice of the detection algorithm and the feature subspace used by the algorithm. Extracting…

人工智能 · 计算机科学 2017-05-18 Yanjie Fu , Charu Aggarwal , Srinivasan Parthasarathy , Deepak S. Turaga , Hui Xiong

LiDAR-based place recognition serves as a crucial enabler for long-term autonomy in robotics and autonomous driving systems. Yet, prevailing methodologies relying on handcrafted feature extraction face dual challenges: (1) Inconsistent…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Xiaohui Jiang , Haijiang Zhu , Chade Li , Fulin Tang , Ning An

Out-of-Distribution (OOD) detection, aiming to distinguish outliers from known categories, has gained prominence in practical scenarios. Recently, the advent of vision-language models (VLM) has heightened interest in enhancing OOD detection…

计算机视觉与模式识别 · 计算机科学 2025-02-27 Fanhu Zeng , Zhen Cheng , Fei Zhu , Hongxin Wei , Xu-Yao Zhang

Adverse weather conditions, such as rain, snow, and fog, severely degrade LiDAR semantic segmentation by introducing refraction, scattering, and point dropouts that compromise geometric integrity. While prior approaches ranging from weather…

计算机视觉与模式识别 · 计算机科学 2026-04-01 YoungJae Cheong , Jhonghyun An

Off-road semantic segmentation is fundamentally challenged by irregular terrain, vegetation clutter, and inherent annotation ambiguity. Unlike urban scenes with crisp object boundaries, off-road environments exhibit strong class-level…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Seongkyu Choi Jhonghyun An

Homography estimation is the task of determining the transformation from an image pair. Our approach focuses on employing detector-free feature matching methods to address this issue. Previous work has underscored the importance of…

信息检索 · 计算机科学 2024-10-15 Yuhan Liu , Qianxin Huang , Siqi Hui , Jingwen Fu , Sanping Zhou , Kangyi Wu , Pengna Li , Jinjun Wang

An ever-growing number of vulnerabilities are reported every day. Yet these vulnerabilities are not all the same; Some are more targeted than others. Correctly estimating the likelihood of a vulnerability being exploited is a critical task…

密码学与安全 · 计算机科学 2023-04-21 Hadi Eskandari , Michael Bewong , Sabih ur Rehman

This paper investigates indoor point cloud semantic segmentation under scene-level annotation, which is less explored compared to methods relying on sparse point-level labels. In the absence of precise point-level labels, current methods…

计算机视觉与模式识别 · 计算机科学 2025-07-01 Lunhao Duan , Shanshan Zhao , Xingxing Weng , Jing Zhang , Gui-Song Xia

In this paper, we demonstrate that the concept of Semantic Consistency and the ensuing method of Knowledge-Aware Re-Optimization can be adapted for the problem of object detection in intricate traffic scenes. Furthermore, we introduce a…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Jean-Francois Nies

The presence of outliers is prevalent in machine learning applications and may produce misleading results. In this paper a new method for dealing with outliers and anomal samples is proposed. To overcome the outlier issue, the proposed…

机器学习 · 计算机科学 2016-07-05 Parsa Bagherzadeh , Hadi Sadoghi Yazdi

Correspondence search is an essential step in rigid point cloud registration algorithms. Most methods maintain a single correspondence at each step and gradually remove wrong correspondances. However, building one-to-one correspondence with…

计算机视觉与模式识别 · 计算机科学 2022-09-30 Jun-Jee Chao , Selim Engin , Nicolai Häni , Volkan Isler
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