Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Generalized method for sorting Shack–Hartmann spot patterns using local similarity

Not Accessible

Your library or personal account may give you access

Abstract

The sensitivity and dynamic range of a Shack–Hartmann wavefront sensor is enhanced when the spots produced by the lenslet array are allowed to shift more than one lenslet radius from their on-axis positions. However, this presents the problem of accurately and robustly associating the spots with their respective subapertures. This paper describes a method for sorting spots that takes advantage of the local spot position distortions to unwrap the spot pattern. The described algorithm is both simple and robust and also applicable to any lenslet array geometry that can be described as a two-dimensional lattice, including hexagonal arrays, which are shown here to be more efficient than square arrays.

© 2008 Optical Society of America

Full Article  |  PDF Article
More Like This
Sorting method to extend the dynamic range of the Shack–Hartmann wave-front sensor

Junwon Lee, Roland V. Shack, and Michael R. Descour
Appl. Opt. 44(23) 4838-4845 (2005)

Shack-Hartmann spot dislocation map determination using an optical flow method

J. Vargas, R. Restrepo, and T. Belenguer
Opt. Express 22(2) 1319-1329 (2014)

Zonal processing of Hartmann or Shack–Hartmann patterns

Francisco Javier Gantes-Nuñez, Zacarías Malacara-Hernández, Daniel Malacara-Doblado, and Daniel Malacara-Hernández
Appl. Opt. 56(7) 1898-1907 (2017)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved