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相关论文: Geometric Stability Estimates For 3D-Object Encryp…

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In machine learning, accurately predicting the probability that a specific input is correct is crucial for risk management. This process, known as uncertainty (or confidence) estimation, is particularly important in mission-critical…

机器学习 · 计算机科学 2023-01-12 Gabriella Chouraqui , Liron Cohen , Gil Einziger , Liel Leman

Much of the success of deep learning is drawn from building architectures that properly respect underlying symmetry and structure in the data on which they operate - a set of considerations that have been united under the banner of…

机器学习 · 计算机科学 2022-10-05 Matthew Spellings

Local density of point clouds is crucial for representing local details, but has been overlooked by existing point cloud compression methods. To address this, we propose a novel deep point cloud compression method that preserves local…

计算机视觉与模式识别 · 计算机科学 2022-04-28 Yun He , Xinlin Ren , Danhang Tang , Yinda Zhang , Xiangyang Xue , Yanwei Fu

We present a joint 3D pose and focal length estimation approach for object categories in the wild. In contrast to previous methods that predict 3D poses independently of the focal length or assume a constant focal length, we explicitly…

计算机视觉与模式识别 · 计算机科学 2019-08-09 Alexander Grabner , Peter M. Roth , Vincent Lepetit

Recently, a colour image encryption algorithm based on chaos was proposed by cascading two position permutation operations and one substitution operation, which are all determined by some pseudo-random number sequences generated by…

密码学与安全 · 计算机科学 2012-03-27 Chengqing Li , Yu Zhang , Rong Ou , Kwok-Wo Wong

We give the first polynomial time and sample $(\epsilon, \delta)$-differentially private (DP) algorithm to estimate the mean, covariance and higher moments in the presence of a constant fraction of adversarial outliers. Our algorithm…

机器学习 · 统计学 2021-12-08 Pravesh K. Kothari , Pasin Manurangsi , Ameya Velingker

Based on previous results of digital topology, this paper focuses on algorithms of topological invariants of objects in 2D and 3D Digital Spaces. We specifically interest in solving hole counting of 2D objects and genus of closed surface in…

计算几何 · 计算机科学 2013-09-18 Li Chen

We introduce the boundary measure at scale r of a compact subset of the n-dimensional Euclidean space. We show how it can be computed for point clouds and suggest these measures can be used for feature detection. The main contribution of…

计算几何 · 计算机科学 2010-03-31 Frédéric Chazal , David Cohen-Steiner , Quentin Mérigot

Swept volume computation, the determination of regions occupied by moving objects, is essential in graphics, robotics, and manufacturing. Existing approaches either explicitly track surfaces, suffering from robustness issues under complex…

计算几何 · 计算机科学 2025-09-12 Pengfei Wang , Yuexin Yang , Shuangmin Chen , Shiqing Xin , Changhe Tu , Wenping Wang

Geospatial sensor data is essential for modern defense and security, offering indispensable 3D information for situational awareness. This data, gathered from sources like lidar sensors and optical cameras, allows for the creation of…

图形学 · 计算机科学 2025-11-10 Benjamin Kahl , Marcus Hebel , Michael Arens

In this paper, a novel image encryption algorithm, which involves a chaotic block image scrambling followed by a two-dimensional (2-D) discrete linear chirp transform, is proposed. The definition of the 2-D discrete linear chirp transform…

图像与视频处理 · 电气工程与系统科学 2018-07-10 Osama A. S. Alkishriwo

Occlusion is commonplace in realistic human-robot shared environments, yet its effects are not considered in standard 3D human pose estimation benchmarks. This leaves the question open: how robust are state-of-the-art 3D pose estimation…

计算机视觉与模式识别 · 计算机科学 2019-01-14 István Sárándi , Timm Linder , Kai O. Arras , Bastian Leibe

We say that an algorithm is stable if small changes in the input result in small changes in the output. This kind of algorithm stability is particularly relevant when analyzing and visualizing time-varying data. Stability in general plays…

数据结构与算法 · 计算机科学 2025-03-10 Wouter Meulemans , Bettina Speckmann , Kevin Verbeek , Jules Wulms

In this paper, we introduce a novel single shot approach for 6D object pose estimation of rigid objects based on depth images. For this purpose, a fully convolutional neural network is employed, where the 3D input data is spatially…

计算机视觉与模式识别 · 计算机科学 2020-04-28 Kilian Kleeberger , Marco F. Huber

We present a new dataset for 6-DoF pose estimation of known objects, with a focus on robotic manipulation research. We propose a set of toy grocery objects, whose physical instantiations are readily available for purchase and are…

机器人学 · 计算机科学 2022-12-19 Stephen Tyree , Jonathan Tremblay , Thang To , Jia Cheng , Terry Mosier , Jeffrey Smith , Stan Birchfield

This paper looks into the problem of grasping unknown objects in a cluttered environment using 3D point cloud data obtained from a range or an RGBD sensor. The objective is to identify graspable regions and detect suitable grasp poses from…

机器人学 · 计算机科学 2018-07-30 Olyvia Kundu , Swagat Kumar

For many computational problems involving randomness, intricate geometric features of the solution space have been used to rigorously rule out powerful classes of algorithms. This is often accomplished through the lens of the multi Overlap…

计算复杂性 · 计算机科学 2023-02-14 David Gamarnik , Eren C. Kızıldağ , Will Perkins , Changji Xu

In this paper, we study an important yet less explored aspect in video detection and tracking -- stability. Surprisingly, there is no prior work that tried to study it. As a result, we start our work by proposing a novel evaluation metric…

计算机视觉与模式识别 · 计算机科学 2017-04-05 Hong Zhang , Naiyan Wang

3D point cloud classification has many safety-critical applications such as autonomous driving and robotic grasping. However, several studies showed that it is vulnerable to adversarial attacks. In particular, an attacker can make a…

密码学与安全 · 计算机科学 2021-07-05 Hongbin Liu , Jinyuan Jia , Neil Zhenqiang Gong

This book introduces the new research area of Geometric Data Science, where data can represent any real objects through geometric measurements. The first part of the book focuses on finite point sets. The most important result is a complete…

度量几何 · 数学 2025-12-05 Olga D Anosova , Vitaliy A Kurlin