Daniel Condurache

dblp:248/4634 · DBLP profile ↗
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3ranked-venue papers
3as first author
2since 2021 · last 2024
0000-0001-9287-8387ORCID · corroborated

Domains — the database's venue-derived domains; a paper can count in several

Software engineering, systems software and programming languages · 3 · 3 first-author · 2 since 2021Applied, interdisciplinary, general and emerging computing · 3 · 3 first-author · 2 since 2021
YearPublicationVenuePosition
2024 The Extended Wahba's Problem in Dual and Multi-Dual Algebras
abstract
Introduced by Grace Wahba in 1965, the Wahba problem aims to reconstruct the optimal rotation matrix of a spacecraft that minimizes a cost function constructed from a set of measurements of discrete points observed in the frame of a rigid body. This problem is fundamental to various aerospace engineering applications. Over the years, numerous methods have been proposed to solve the generalized forms of the Wahba problem. This paper takes it a step further by extending the Wahba problem to include both pose and the higher-order properties of the general motion of a rigid body. This new problem is closely linked with the parameters that describe the higher-order properties of rigid bodies using dual and multi-dual vectors and tensors. Recent developments highlight the utility of dual and multi-dual tensors as coordinate-free tools for computing the kinematics of higher-order motion parameters. The present research utilizes the homomorphism between the Special Euclidean Lie group, SE (3), and the orthogonal dual and multi-dual tensors Lie groups. This approach enables the development of a novel technique for solving the extended Wahba problem. We present a detailed new procedure for assessing the existence of a solution to this problem. Based on this procedure, we derive closed-form, coordinate-free solutions, highlighting the benefits of working with dual and multi-dual algebra. Applications of this new Wahba problem extend to generalized point-to-point registration (higher-order parameters estimation in motion) and generalized sensor calibration problems in robotics.
Daniel Condurache, Mihail Cojocari
CoDIT1
2023 Product of Exponential Formula of Multidual Quaternions and Higher-Order Kinematics
abstract
A novel computational method of higher-order kinematics motion of multibody systems of rigid bodies is proposed in this paper. A crucial observation of the new approach is the generic properties of the automatic differentiation feature of extended function in multidual (MD) algebra. A specific differential transform represents a symbolic determination of field invariants in higher-order accelerations field. All information of this representation is encapsulated in a quaternion definite in the tensorial product on dual and multidual algebras, denoted hyper-multidual (HMD) algebra. In the case of a lower-pair kinematic serial chain, a Product of the Exponential (POE) formula of HMD quaternion of the end-effector of the spatial kinematic chain in HMD algebra is presented in various reference frames.
Daniel Condurache
CoDIT1
2019 A novel solution for $\mathbf{AX}=\mathbf{YB}$ sensor calibration problem using dual Lie algebra
abstract
The AX = YB sensor calibration problem is very important in multiple fields such as robotics, computer vision or machine vision. In this type of problem, A and B are parameterizations of rigid body motions, while X and Y is an unknown's transformations. This research proposes a new approach for solving the AX = YB sensor calibration problem by mapping the S\mathbbE3 classic formulation into an orthogonal dual tensors set S\mathbbO3 representation. Using an isomorphism between S\mathbbE3 and S\mathbbO3, these solutions are free of coordinates and can easily be put into practice.
Daniel Condurache, Ioan-Adrian Ciureanu
CoDIT1