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This paper presents DeepI2P: a novel approach for cross-modality registration between an image and a point cloud. Given an image (e.g. from a rgb-camera) and a general point cloud (e.g. from a 3D Lidar scanner) captured at different…

计算机视觉与模式识别 · 计算机科学 2021-04-09 Jiaxin Li , Gim Hee Lee

Conformal Prediction (CP) is a popular uncertainty quantification method that provides distribution-free, statistically valid prediction sets, assuming that training and test data are exchangeable. In such a case, CP's prediction sets are…

计算机科学中的逻辑 · 计算机科学 2024-11-19 Linus Jeary , Tom Kuipers , Mehran Hosseini , Nicola Paoletti

Point cloud registration (PCR) is an essential task in 3D vision. Existing methods achieve increasingly higher accuracy. However, a large proportion of non-overlapping points in point cloud registration consume a lot of computational…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Yang Ai , Qiang Bai , Jindong Li , Xi Yang

Established sampling protocols for 3D point cloud learning, such as Farthest Point Sampling (FPS) and Fixed Sample Size (FSS), have long been relied upon. However, real-world data often suffer from corruptions, such as sensor noise, which…

计算机视觉与模式识别 · 计算机科学 2025-02-04 Chongshou Li , Pin Tang , Xinke Li , Yuheng Liu , Tianrui Li

Given new pairs of source and target point sets, standard point set registration methods often repeatedly conduct the independent iterative search of desired geometric transformation to align the source point set with the target one. This…

图形学 · 计算机科学 2019-07-30 Lingjing Wang , Xiang Li , Jianchun Chen , Yi Fang

Point clouds are essential for storage and transmission of 3D content. As they can entail significant volumes of data, point cloud compression is crucial for practical usage. Recently, point cloud geometry compression approaches based on…

计算机视觉与模式识别 · 计算机科学 2021-02-26 Maurice Quach , Aladine Chetouani , Giuseppe Valenzise , Frederic Dufaux

The accurate identification of high-quality correspondences is a prerequisite task in feature-based point cloud registration. However, it is extremely challenging to handle the fusion of local and global features due to feature redundancy…

计算机视觉与模式识别 · 计算机科学 2025-09-03 Weikang Gu , Mingyue Han , Li Xue , Heng Dong , Changcai Yang , Riqing Chen , Lifang Wei

This paper puts forth a coarse grid projection (CGP) multiscale method to accelerate computations of quasigeostrophic (QG) models for large scale ocean circulation. These models require solving an elliptic sub-problem at each time step,…

流体动力学 · 物理学 2013-10-08 Omer San , Anne E. Staples

Density peaks clustering (DP) has the ability of detecting clusters of arbitrary shape and clustering non-Euclidean space data, but its quadratic complexity in both computing and storage makes it difficult to scale for big data. Various…

机器学习 · 计算机科学 2024-06-19 Ji Xu , Tianlong Xiao , Jinye Yang , Panpan Zhu

This letter proposes an improved CNN predictor (ICNNP) for reversible data hiding (RDH) in images, which consists of a feature extraction module, a pixel prediction module, and a complexity prediction module. Due to predicting the…

多媒体 · 计算机科学 2023-01-05 Yingqiang Qiu , Wanli Peng , Xiaodan Lin , Huanqiang Zeng , Zhenxing Qian

We present a fast feature-metric point cloud registration framework, which enforces the optimisation of registration by minimising a feature-metric projection error without correspondences. The advantage of the feature-metric projection…

计算机视觉与模式识别 · 计算机科学 2020-05-05 Xiaoshui Huang , Guofeng Mei , Jian Zhang

The use of correntropy as a similarity measure has been increasing in different scenarios due to the well-known ability to extract high-order statistic information from data. Recently, a new similarity measure between complex random…

信息论 · 计算机科学 2017-10-03 João Guimarães

In this paper, we present a novel method for co-clustering, an unsupervised learning approach that aims at discovering homogeneous groups of data instances and features by grouping them simultaneously. The proposed method uses the entropy…

机器学习 · 统计学 2017-05-22 Charlotte Laclau , Ievgen Redko , Basarab Matei , Younès Bennani , Vincent Brault

This paper aims to efficiently compute transport maps between probability distributions arising from particle representation of bio-physical problems. We develop a bidirectional DeepParticle (BDP) method to learn and generate solutions…

计算物理 · 物理学 2025-04-17 Tan Zhang , Zhongjian Wang , Jack Xin , Zhiwen Zhang

Intrinsic isometric shape matching has become the standard approach for pose invariant correspondence estimation among deformable shapes. Most existing approaches assume global consistency, i.e., the metric structure of the whole manifold…

计算机视觉与模式识别 · 计算机科学 2014-01-14 Alan Brunton , Michael Wand , Stefanie Wuhrer , Hans-Peter Seidel , Tino Weinkauf

Distributed estimation over networks draws much attraction in recent years. In many situations, due to imperfect information communication among nodes, the performance of traditional diffusion adaptive algorithms such as the diffusion LMS…

信息论 · 计算机科学 2018-02-15 Yicong He , Fei Wang , Shiyuan Wang , Pengju Ren , Badong Chen

In theory coordinated multi-point transmission (CoMP) promises vast gains in spectral efficiency. But industrial field trials show rather disappointing throughput gains, whereby the major limiting factor is proper sharing of channel state…

信息论 · 计算机科学 2016-11-18 Jan Schreck , Gerhard Wunder , Peter Jung

Image-to-point cloud registration aims to determine the relative camera pose between an RGB image and a reference point cloud, serving as a general solution for locating 3D objects from 2D observations. Matching individual points with…

计算机视觉与模式识别 · 计算机科学 2024-01-19 Gongxin Yao , Yixin Xuan , Yiwei Chen , Yu Pan

As a robust nonlinear similarity measure in kernel space, correntropy has received increasing attention in domains of machine learning and signal processing. In particular, the maximum correntropy criterion (MCC) has recently been…

机器学习 · 统计学 2016-07-12 Badong Chen , Lei Xing , Haiquan Zhao , Nanning Zheng , José C. Príncipe

Pre-trained point cloud analysis models have shown promising advancements in various downstream tasks, yet their effectiveness is typically suffering from low-quality point cloud (i.e., noise and incompleteness), which is a common issue in…

计算机视觉与模式识别 · 计算机科学 2025-07-28 Zixiang Ai , Zhenyu Cui , Yuxin Peng , Jiahuan Zhou