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Learning-based point cloud registration methods can handle clean point clouds well, while it is still challenging to generalize to noisy, partial, and density-varying point clouds. To this end, we propose a novel point cloud registration…

计算机视觉与模式识别 · 计算机科学 2024-01-12 Leida Zhang , Zhengda Lu , Kai Liu , Yiqun Wang

Point cloud registration has seen significant advancements with the application of deep learning techniques. However, existing approaches often overlook the potential of integrating radiometric information from RGB images. This limitation…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Zhaoyi Wang , Shengyu Huang , Jemil Avers Butt , Yuanzhou Cai , Matej Varga , Andreas Wieser

Although developed functional magnetic resonance imaging (fMRI) registration algorithms based on deep learning have achieved a certain degree of alignment of functional area, they underutilized fine structural information. In this paper, we…

图像与视频处理 · 电气工程与系统科学 2024-09-27 Baolong Li , Yuhu Shi , Lei Wang , Weiming Zeng , Changming Zhu

When considering sparse motion capture marker data, one typically struggles to balance its overfitting via a high dimensional blendshape system versus underfitting caused by smoothness constraints. With the current trend towards using more…

计算机视觉与模式识别 · 计算机科学 2019-09-06 Matthew Cong , Lana Lan , Ronald Fedkiw

In this work, we propose an unsupervised method for learning dense correspondences between shapes using a recent deep functional map framework. Instead of depending on ground-truth correspondences or the computationally expensive geodesic…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Mehmet Aygün , Zorah Lähner , Daniel Cremers

We present KeyMorph, a deep learning-based image registration framework that relies on automatically detecting corresponding keypoints. State-of-the-art deep learning methods for registration often are not robust to large misalignments, are…

计算机视觉与模式识别 · 计算机科学 2023-09-04 Alan Q. Wang , Evan M. Yu , Adrian V. Dalca , Mert R. Sabuncu

Distortion of the fingerprint images leads to a decline in fingerprint recognition performance, and fingerprint registration can mitigate this distortion issue by accurately aligning two fingerprint images. Currently, fingerprint…

计算机视觉与模式识别 · 计算机科学 2025-07-23 Yuwei Jia , Zhe Cui , Fei Su

The use of covariance kernels is ubiquitous in the field of spatial statistics. Kernels allow data to be mapped into high-dimensional feature spaces and can thus extend simple linear additive methods to nonlinear methods with higher order…

机器学习 · 统计学 2017-11-16 Jean-Francois Ton , Seth Flaxman , Dino Sejdinovic , Samir Bhatt

Point cloud registration aligns multiple unposed point clouds into a common reference frame and is a core step for 3D reconstruction and robot localization without initial guess. In this work, we cast registration as conditional generation:…

计算机视觉与模式识别 · 计算机科学 2026-03-17 Yue Pan , Tao Sun , Liyuan Zhu , Lucas Nunes , Iro Armeni , Jens Behley , Cyrill Stachniss

Modern single-cell flow and mass cytometry technologies measure the expression of several proteins of the individual cells within a blood or tissue sample. Each profiled biological sample is thus represented by a set of hundreds of…

机器学习 · 计算机科学 2022-06-29 Siyuan Shan , Vishal Baskaran , Haidong Yi , Jolene Ranek , Natalie Stanley , Junier Oliva

Deep metrics have been shown effective as similarity measures in multi-modal image registration; however, the metrics are currently constructed from aligned image pairs in the training data. In this paper, we propose a strategy for learning…

计算机视觉与模式识别 · 计算机科学 2018-04-06 Alireza Sedghi , Jie Luo , Alireza Mehrtash , Steve Pieper , Clare M. Tempany , Tina Kapur , Parvin Mousavi , William M. Wells

Measuring similarity between two objects is the core operation in existing clustering algorithms in grouping similar objects into clusters. This paper introduces a new similarity measure called point-set kernel which computes the similarity…

机器学习 · 计算机科学 2022-01-07 Kai Ming Ting , Jonathan R. Wells , Ye Zhu

Image registration plays an important role in comparing images. It is particularly important in analyzing medical images like CT, MRI, PET, etc. to quantify different biological samples, to monitor disease progression and to fuse different…

计算机视觉与模式识别 · 计算机科学 2018-10-22 Abdullah Nazib , Clinton Fookes , Dimitri Perrin

Point set registration is a key component in many computer vision tasks. The goal of point set registration is to assign correspondences between two sets of points and to recover the transformation that maps one point set to the other.…

计算机视觉与模式识别 · 计算机科学 2010-11-09 Andriy Myronenko , Xubo Song

3D point cloud registration is a fundamental problem in computer vision and robotics. Recently, learning-based point cloud registration methods have made great progress. However, these methods are sensitive to outliers, which lead to more…

计算机视觉与模式识别 · 计算机科学 2022-11-10 Kexue Fu , Jiazheng Luo , Xiaoyuan Luo , Shaolei Liu , Chenxi Zhang , Manning Wang

This work proposes a multi-image matching method to estimate semantic correspondences across multiple images. In contrast to the previous methods that optimize all pairwise correspondences, the proposed method identifies and matches only a…

计算机视觉与模式识别 · 计算机科学 2018-05-02 Qianqian Wang , Xiaowei Zhou , Kostas Daniilidis

Improving the performance of classifiers is the realm of feature mapping, prototype selection, and kernel function transformations; these techniques aim for reducing the complexity, and also, improving the accuracy of models. In particular,…

机器学习 · 计算机科学 2019-10-04 Jose Ortiz-Bejar , Eric S. Tellez , Mario Graff

Parametric spatial transformation models have been successfully applied to image registration tasks. In such models, the transformation of interest is parameterized by a fixed set of basis functions as for example B-splines. Each basis…

计算机视觉与模式识别 · 计算机科学 2019-06-25 Robin Sandkühler , Simon Andermatt , Grzegorz Bauman , Sylvia Nyilas , Christoph Jud , Philippe C. Cattin

Machine learning and deep learning have been used extensively to classify physical surfaces through images and time-series contact data. However, these methods rely on human expertise and entail the time-consuming processes of data and…

机器学习 · 计算机科学 2023-08-10 Behnam Khojasteh , Friedrich Solowjow , Sebastian Trimpe , Katherine J. Kuchenbecker

We propose a novel 3D shape correspondence method based on the iterative alignment of so-called smooth shells. Smooth shells define a series of coarse-to-fine shape approximations designed to work well with multiscale algorithms. The main…

计算机视觉与模式识别 · 计算机科学 2019-12-03 Marvin Eisenberger , Zorah Lähner , Daniel Cremers