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

Radial Hilbert transform with the spatially variable half-wave plate

Not Accessible

Your library or personal account may give you access

Abstract

We analyzed the point spread function (PSF) of the typical 4f optical image processing system by use of a spatially variable half-wave plate as the spatial filter and found that the PSF is an elementary vector beam. Theoretical analysis and real experiments show that the optical system can be used for a radially symmetric Hilbert transform that permits two-dimensional edge enhancement as the spiral phase plate. This kind of radial Hilbert transform is useful for image processing because it can enhance the edges of an input image selectively by exerting a polarization analyzer before the output plane. The optical system also can be used for generation of vector beams with arbitrary array and shape in real time conveniently.

© 2013 Optical Society of America

Full Article  |  PDF Article
More Like This
Radial Hilbert transform with Laguerre-Gaussian spatial filters

Cheng-Shan Guo, Yu-Jing Han, Jian-Bo Xu, and Jianping Ding
Opt. Lett. 31(10) 1394-1396 (2006)

Image processing with the radial Hilbert transform: theory and experiments

Jeffrey A. Davis, Dylan E. McNamara, Don M. Cottrell, and Juan Campos
Opt. Lett. 25(2) 99-101 (2000)

Simultaneous generation of helical beams with linear and radial polarization by use of a segmented half-wave plate

Hikaru Kawauchi, Yuichi Kozawa, Shunichi Sato, Takashi Sato, and Shojiro Kawakami
Opt. Lett. 33(4) 399-401 (2008)

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 (5)

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

Equations (6)

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