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

Analysis of speckle noise in bar-code scanning systems

Not Accessible

Your library or personal account may give you access

Abstract

Laser beams used for bar-code scanning exhibit speckle noise generated by the roughness of the surface on which bar codes are printed. Statistical properties of a photodetector signal that integrates a time-varying speckle pattern falling on its aperture are analyzed in detail. We derive simple closed-form expressions for the autocorrelation function and the power spectral density of the detector current for scanning beams with arbitrary field distributions. Theoretical calculations are illustrated by numerical simulations as well.

© 2001 Optical Society of America

Full Article  |  PDF Article
More Like This
Speckle noise in bar-code scanning systems—power spectral density and SNR

Emanuel Marom, Saša Krešić-Jurić, and Leonard Bergstein
Appl. Opt. 42(2) 161-174 (2003)

Speckle noise in laser bar-code-scanner systems

Daoqi Yu, Miklos Stern, and Joseph Katz
Appl. Opt. 35(19) 3687-3694 (1996)

K speckle: space–time correlation function of doubly scattered light in an imaging system

Dayan Li, Damien P. Kelly, and John T. Sheridan
J. Opt. Soc. Am. A 30(5) 969-978 (2013)

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 (6)

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 (3)

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 (102)

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