English

Fitting Concentric Elliptical Shapes Under General Model

Computation 2024-02-16 v3 Numerical Analysis Numerical Analysis

Abstract

The problem of fitting concentric ellipses is a vital problem in image processing, pattern recognition, and astronomy. Several methods have been developed but all address very special cases. In this paper, this problem has been investigated under a more general setting, and two estimators for estimating the parameters have been proposed. Since both estimators are obtained iterative fashion, several numerical schemes are investigated and the best initial guess is determined. Furthermore, the constraint Cram\'{e} Rao lower bound for this problem is derived and it is compared with the variance of each estimator. Finally, our theory is assessed and validated by a series of numerical experiments on both real and synthetic data.

Keywords

Cite

@article{arxiv.2308.04970,
  title  = {Fitting Concentric Elliptical Shapes Under General Model},
  author = {Ali Al-Sharadqah and Giulano Piga},
  journal= {arXiv preprint arXiv:2308.04970},
  year   = {2024}
}

Comments

it has a serious mistake that needs major revision and it could take several months to fix

R2 v1 2026-06-28T11:51:55.799Z