Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/stsci/meetings/irw/proceedings/perryk.dir/perryk.html
Дата изменения: Sat Apr 16 04:20:04 1994
Дата индексирования: Sun Dec 23 18:38:52 2007
Кодировка:
Поисковые слова: arp 220

Generalized Cross-Validation as a Stopping Rule for the Richardson-Lucy Algorithm

Next: Introduction

Generalized Cross-Validation as a Stopping Rule for the Richardson-Lucy Algorithm

Kevin M. Perry and Stanley J. Reeves

Department of Electrical Engineering, Auburn University, Auburn, AL 36849-5201

Abstract:

This paper presents a criterion for stopping non-linear iterative algorithms, specifically the Richardson-Lucy algorithm that is widely used to restore images from the Hubble Space Telescope. The criterion is based on generalized cross-validation and is also computed iteratively. We will present examples displaying the power of the stopping rule, and will discuss the abilities and shortcomings of this method. We also present a caveat about the method.

rlw@sundog.stsci.edu
Fri Apr 15 20:09:18 EDT 1994