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Many man-made objects are characterised by a shape that is symmetric along one or more planar directions. Estimating the location and orientation of such symmetry planes can aid many tasks such as estimating the overall orientation of an…

Computer Vision and Pattern Recognition · Computer Science 2021-07-01 Mihaela Cătălina Stoian , Tommaso Cavallari

Accurate estimates of rotation are crucial to vision-based motion estimation in augmented reality and robotics. In this work, we present a method to extract probabilistic estimates of rotation from deep regression models. First, we build on…

Computer Vision and Pattern Recognition · Computer Science 2020-05-11 Valentin Peretroukhin , Brandon Wagstaff , Matthew Giamou , Jonathan Kelly

This paper suggests a nonlinear mixed effects model for data points in $\mathit{SO}(3)$, the set of $3\times3$ rotation matrices, collected according to a repeated measure design. Each sample individual contributes a sequence of rotation…

Applications · Statistics 2011-01-07 Mohammed Haddou , Louis-Paul Rivest , Michael Pierrynowski

Packing optimization is a prevalent problem that necessitates robust and efficient algorithms that are also simple to implement. One group of approaches is the raster methods, which rely on approximating the objects with pixelated…

Computational Geometry · Computer Science 2020-12-10 Gokhan Serhat

The way a field transforms under rotations determines its statistics--as is easy to see for scalar, Dirac, and vector fields.

High Energy Physics - Theory · Physics 2007-05-23 Kevin Cahill

We study properties of an array of numbers, called "the triangle," in which each row is formed by rotating all the numbers in the previous row to the left by $m$ positions in cyclical fashion, then appending a number to the end of the row.…

Number Theory · Mathematics 2014-09-16 Philip Jameson Graber

Euler's rotation theorem states that any reconfiguration of a rigid body with one of its points fixed is equivalent to a single rotation about an axis passing through the fixed point. The theorem forms the basis for Chasles' theorem which…

History and Overview · Mathematics 2020-08-13 Toby Joseph

Four new variants of the Computational Order of Convergence (COC) of a one-point iterative method with memory for solving nonlinear equations are presented. Furthermore, the way to approximate the new variants to the local order of…

Numerical Analysis · Mathematics 2012-02-21 Miquel Grau-Sánchez , Miquel Noguera , Àngela Grau , José R. Herrero

We propose a technique for learning single-view 3D object pose estimation models by utilizing a new source of data -- in-the-wild videos where objects turn. Such videos are prevalent in practice (e.g., cars in roundabouts, airplanes near…

Computer Vision and Pattern Recognition · Computer Science 2022-12-14 Zezhou Cheng , Matheus Gadelha , Subhransu Maji

The circumcentered-reflection method (CRM) has been applied for solving convex feasibility problems. CRM iterates by computing a circumcenter upon a composition of reflections with respect to convex sets. Since reflections are based on…

Optimization and Control · Mathematics 2022-01-05 Guilherme Araújo , Reza Arefidamghani , Roger Behling , Yunier Bello-Cruz , Alfredo Iusem , Luiz-Rafael Santos

We report an experiment estimating the three parameters of a general rotation. The scheme uses quantum states attaining the ultimate precision dictated by the quantum Cram\'er-Rao bound. We realize the states experimentally using the…

Quantum Physics · Physics 2023-09-27 M. Eriksson , A. Z. Goldberg , M. Hiekkamäki , F. Bouchard , G. Leuchs , R. Fickler , L. L. Sanchez-Soto

We prove an upper bound for pointwise rotation of mappings with $p$-exponentially integrable distortion. We also show that this bound is essentially optimal by providing examples which attain this rotation up to a constant multiplication.

Complex Variables · Mathematics 2015-12-24 Lauri Hitruhin

The LC method described in this work seeks to approximate the roots of polynomial equations in one variable. This book allows you to explore the LC method, which uses geometric structures of Lines L and Circumferences C in the plane of…

Numerical Analysis · Mathematics 2024-02-27 Daniel Alba-Cuellar

We present a fast and accurate solution to the perspective $n$-points problem, by way of a new approach to the n=4 case. Our solution hinges on a novel separation of variables: given four 3D points and four corresponding 2D points on the…

Algebraic Geometry · Mathematics 2026-02-24 David Lehavi , Brian Osserman

In various areas of applied numerics, the problem of calculating the logarithm of a matrix A emerges. Since series expansions of the logarithm usually do not converge well for matrices far away from the identity, the standard numerical…

Numerical Analysis · Computer Science 2007-07-19 Gernot Schaller

Inspired by the seminal result that a graph and an associated rotation system uniquely determine the topology of a closed manifold, we propose a combinatorial method for reconstruction of surfaces from points. Our method constructs a…

Computational Geometry · Computer Science 2025-05-28 Ruiqi Cui , Emil Toftegaard Gæde , Eva Rotenberg , Leif Kobbelt , J. Andreas Bærentzen

Solving non-linear least-squares problem for pose estimation (rotation and translation) is often a time consuming yet fundamental problem in several real-time computer vision applications. With an adequate rotation parametrization, the…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Jana Vráblíková , Ezio Malis , Laurent Busé

The task of approximating points with circular arcs is performed in many applications, such as polyline compression, noise filtering, and feature recognition. However, the development of algorithms that perform a significant amount of…

Computational Geometry · Computer Science 2018-10-12 Alexander Gribov

This note shows how to compute, to high relative accuracy under mild assumptions, complex Jacobi rotations for diagonalization of Hermitian matrices of order two, using the correctly rounded functions $\mathtt{cr\_hypot}$ and…

Numerical Analysis · Mathematics 2024-05-21 Vedran Novaković

Rectangulations are partitions of a square into axis-aligned rectangles. A number of results provide bijections between combinatorial equivalence classes of rectangulations and families of pattern-avoiding permutations. Other results deal…

Combinatorics · Mathematics 2023-06-22 Jean Cardinal , Vera Sacristán , Rodrigo I. Silveira
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