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Stereo rectification is the determination of two image transformations (or homographies) that map corresponding points on the two images, projections of the same point in the 3D space, onto the same horizontal line in the transformed…

计算机视觉与模式识别 · 计算机科学 2022-03-03 Pasquale Lafiosca , Marta Ceccaroni

Totally symmetric sets are a recently introduced tool for studying homomorphisms between groups. In this paper, we give full classifications of totally symmetric sets in certain families of groups and bound their sizes in others. As a…

群论 · 数学 2022-03-09 Kevin Kordek , Qiao Li , Caleb Partin

We study the challenging problem of estimating the relative pose of three calibrated cameras from four point correspondences. We propose novel efficient solutions to this problem that are based on the simple idea of using four…

计算机视觉与模式识别 · 计算机科学 2025-11-07 Charalambos Tzamos , Viktor Kocur , Yaqing Ding , Daniel Barath , Zuzana Berger Haladova , Torsten Sattler , Zuzana Kukelova

In this paper, we present a unified analysis of matrix completion under general low-dimensional structural constraints induced by {\em any} norm regularization. We consider two estimators for the general problem of structured matrix…

机器学习 · 统计学 2018-11-26 Suriya Gunasekar , Arindam Banerjee , Joydeep Ghosh

Information transfer between triangle meshes is of great importance in computer graphics and geometry processing. To facilitate this process, a smooth and accurate map is typically required between the two meshes. While such maps can…

图形学 · 计算机科学 2018-01-09 Danielle Ezuz , Justin Solomon , Mirela Ben-Chen

Fitting an unknown number of hyperplanes to data is a fundamental yet challenging problem in machine learning, characterized by its non-convexity, non-differentiability, and unknown model order. Existing approaches often struggle with local…

机器学习 · 计算机科学 2026-05-28 Zhiqin Cheng , Yu Zhan , Mingjin Zhang , Lingbo Liu , Liang Lin

We present a necessary and sufficient condition for a 3 by 3 matrix to be unitarily equivalent to a symmetric matrix with complex entries, and an algorithm whereby an arbitrary 3 by 3 matrix can be tested. This test generalizes to a…

泛函分析 · 数学 2009-08-18 James E. Tener

This paper combines two ingredients in order to get a rather surprising result on one of the most studied, elegant and powerful tools for solving convex feasibility problems, the method of alternating projections (MAP). Going back to names…

最优化与控制 · 数学 2021-11-11 Roger Behling , Yunier Bello-Cruz , Luiz-Rafael Santos

Many robotics and mapping systems contain multiple sensors to perceive the environment. Extrinsic parameter calibration, the identification of the position and rotation transform between the frames of the different sensors, is critical to…

机器人学 · 计算机科学 2019-08-27 Hongyu Chen , Sören Schwertfeger

Finding correspondences between shapes is a fundamental problem in computer vision and graphics, which is relevant for many applications, including 3D reconstruction, object tracking, and style transfer. The vast majority of correspondence…

计算机视觉与模式识别 · 计算机科学 2024-04-04 Maolin Gao , Zorah Lähner , Johan Thunberg , Daniel Cremers , Florian Bernard

To enumerate 3-manifold triangulations with a given property, one typically begins with a set of potential face pairing graphs (also known as dual 1-skeletons), and then attempts to flesh each graph out into full triangulations using an…

几何拓扑 · 数学 2014-07-25 Benjamin A. Burton , William Pettersson

We study multivariate normal models that are described by linear constraints on the inverse of the covariance matrix. Maximum likelihood estimation for such models leads to the problem of maximizing the determinant function over a…

统计理论 · 数学 2009-06-22 Bernd Sturmfels , Caroline Uhler

The inverse problem of diffraction theory in essence amounts to the reconstruction of the atomic positions of a solid from its diffraction image. From a mathematical perspective, this is a notoriously difficult problem, even in the…

度量几何 · 数学 2009-02-23 Uwe Grimm , Michael Baake

We consider the problem of matrix completion on an $n \times m$ matrix. We introduce the problem of Interpretable Matrix Completion that aims to provide meaningful insights for the low-rank matrix using side information. We show that the…

最优化与控制 · 数学 2020-03-05 Dimitris Bertsimas , Michael Lingzhi Li

In this paper, we propose to estimate the invariant subspace across heterogeneous multiple networks using a novel bias-corrected joint spectral embedding algorithm. The proposed algorithm recursively calibrates the diagonal bias of the sum…

统计理论 · 数学 2024-06-13 Fangzheng Xie

A long-standing open question in Integer Programming is whether integer programs with constraint matrices with bounded subdeterminants are efficiently solvable. An important special case thereof are congruency-constrained integer programs…

最优化与控制 · 数学 2023-04-26 Martin Nägele , Richard Santiago , Rico Zenklusen

Supervised and unsupervised homography estimation methods depend on image pairs tailored to specific modalities to achieve high accuracy. However, their performance deteriorates substantially when applied to unseen modalities. To address…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Jinkun You , Jiaxin Cheng , Jie Zhang , Yicong Zhou

3D human pose estimation has been a long-standing challenge in computer vision and graphics, where multi-view methods have significantly progressed but are limited by the tedious calibration processes. Existing multi-view methods are…

计算机视觉与模式识别 · 计算机科学 2023-09-12 Boyuan Jiang , Lei Hu , Shihong Xia

In this paper we address the problem of matching two images with two different resolutions: a high-resolution image and a low-resolution one. The difference in resolution between the two images is not known and without loss of generality…

计算机视觉与模式识别 · 计算机科学 2023-11-21 Yves Dufournaud , Cordelia Schmid , Radu Horaud

This paper studies binary quadratic programs in which the objective is defined by a Euclidean distance matrix, subject to a general polyhedral constraint set. This class of nonconcave maximisation problems includes the capacitated,…

最优化与控制 · 数学 2023-09-19 Hoa T. Bui , Sandy Spiers , Ryan Loxton