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Learning-based outlier (mismatched correspondence) rejection for robust 3D registration generally formulates the outlier removal as an inlier/outlier classification problem. The core for this to be successful is to learn the discriminative…

计算机视觉与模式识别 · 计算机科学 2023-04-05 Haobo Jiang , Zheng Dang , Zhen Wei , Jin Xie , Jian Yang , Mathieu Salzmann

Correspondence-based point cloud registration (PCR) plays a key role in robotics and computer vision. However, challenges like sensor noises, object occlusions, and descriptor limitations inevitably result in numerous outliers. RANSAC…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Pengcheng Shi , Shaocheng Yan , Yilin Xiao , Xinyi Liu , Yongjun Zhang , Jiayuan Li

Estimating the rigid transformation with 6 degrees of freedom based on a putative 3D correspondence set is a crucial procedure in point cloud registration. Existing correspondence identification methods usually lead to large outlier ratios…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Tianyu Huang , Haoang Li , Liangzu Peng , Yinlong Liu , Yun-Hui Liu

Detecting the reflection symmetry plane of an object represented by a 3D point cloud is a fundamental problem in 3D computer vision and geometry processing due to its various applications, such as compression, object detection, robotic…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Rajendra Nagar

Unsupervised learning methods are well established in the area of anomaly detection and achieve state of the art performances on outlier datasets. Outliers play a significant role, since they bear the potential to distort the predictions of…

机器学习 · 计算机科学 2024-07-02 Andreas Lohrer , Daniyal Kazempour , Maximilian Hünemörder , Peer Kröger

Out-of-distribution (OOD) detection, which determines whether a given sample is part of the in-distribution (ID), has recently shown promising results through training with synthetic OOD datasets. Nonetheless, existing methods often produce…

计算机视觉与模式识别 · 计算机科学 2025-05-21 Suhee Yoon , Sanghyu Yoon , Ye Seul Sim , Sungik Choi , Kyungeun Lee , Hye-Seung Cho , Hankook Lee , Woohyung Lim

Outlier detection is an important problem occurring in a wide range of areas. Outliers are the outcome of fraudulent behaviour, mechanical faults, human error, or simply natural deviations. Many data mining applications perform outlier…

机器学习 · 计算机科学 2025-10-28 Juan A. Lara , David Lizcano , Víctor Rampérez , Javier Soriano

Due to the density inconsistency and distribution difference between cross-source point clouds, previous methods fail in cross-source point cloud registration. We propose a density-robust feature extraction and matching scheme to achieve…

计算机视觉与模式识别 · 计算机科学 2024-12-30 Guiyu Zhao , Zhentao Guo , Zewen Du , Hongbin Ma

We develop a new robust geographically weighted regression method in the presence of outliers. We embed the standard geographically weighted regression in robust objective function based on $\gamma$-divergence. A novel feature of the…

统计方法学 · 统计学 2021-10-15 Shonosuke Sugasawa , Daisuke Murakami

Estimating the rigid transformation between two LiDAR scans through putative 3D correspondences is a typical point cloud registration paradigm. Current 3D feature matching approaches commonly lead to numerous outlier correspondences, making…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Xinyi Li , Hu Cao , Yinlong Liu , Xueli Liu , Feihu Zhang , Alois Knoll

We consider the problem of robustly fitting a model to data that includes outliers by formulating a percentile optimization problem. This problem is non-smooth and non-convex, hence hard to solve. We derive properties that the minimizers of…

信号处理 · 电气工程与系统科学 2024-05-16 João Domingos , João Xavier

We address the challenge of point cloud registration using color information, where traditional methods relying solely on geometric features often struggle in low-overlap and incomplete scenarios. To overcome these limitations, we propose…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Jiayi Tian , Haiduo Huang , Tian Xia , Wenzhe Zhao , Pengju Ren

Identifying salient points in images is a crucial component for visual odometry, Structure-from-Motion or SLAM algorithms. Recently, several learned keypoint methods have demonstrated compelling performance on challenging benchmarks.…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Jiexiong Tang , Hanme Kim , Vitor Guizilini , Sudeep Pillai , Rares Ambrus

Rotation search and point cloud registration are two fundamental problems in robotics and computer vision, which aim to estimate the rotation and the transformation between the 3D vector sets and point clouds, respectively. Due to the…

机器人学 · 计算机科学 2021-05-11 Lei Sun

This paper proposes a robust classification model, based on support vector machine (SVM), which simultaneously deals with outliers detection and feature selection. The classifier is built considering the ramp loss margin error and it…

Point cloud registration is a fundamental and challenging problem for autonomous robots interacting in unstructured environments for applications such as object pose estimation, simultaneous localization and mapping, robot-sensor…

机器人学 · 计算机科学 2023-09-29 Michael Gentner , Prajval Kumar Murali , Mohsen Kaboli

Most multivariate outlier detection procedures ignore the spatial dependency of observations, which is present in many real data sets from various application areas. This paper introduces a new outlier detection method that accounts for a…

统计方法学 · 统计学 2024-01-25 Patricia Puchhammer , Peter Filzmoser

The traditional homography estimation pipeline consists of four main steps: feature detection, feature matching, outlier removal and transformation estimation. Recent deep learning models intend to address the homography estimation problem…

计算机视觉与模式识别 · 计算机科学 2022-08-31 Yi Li , Wenjie Pei , Zhenyu He

Point cloud registration based on correspondences computes the rigid transformation that maximizes the number of inliers constrained within the noise threshold. Current state-of-the-art (SOTA) methods employing spatial compatibility graphs…

计算机视觉与模式识别 · 计算机科学 2026-02-02 Zhao Zheng , Jingfan Fan , Long Shao , Hong Song , Danni Ai , Tianyu Fu , Deqiang Xiao , Yongtian Wang , Jian Yang

Outlier explanation is the task of identifying a set of features that distinguish a sample from normal data, which is important for downstream (human) decision-making. Existing methods are based on beam search in the space of feature…

机器学习 · 计算机科学 2022-07-19 Stefan Lüdtke , Christian Bartelt , Heiner Stuckenschmidt