OSA's Digital Library

Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Vol. 16, Iss. 5 — May. 1, 1999
  • pp: 1026–1033

Equivalent blur as a function of spurious response of a sampled imaging system: application to character recognition

Ronald G. Driggers, Richard Vollmerhausen, and Barbara O’Kane  »View Author Affiliations


JOSA A, Vol. 16, Issue 5, pp. 1026-1033 (1999)
http://dx.doi.org/10.1364/JOSAA.16.001026


View Full Text Article

Enhanced HTML    Acrobat PDF (585 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

Image sampling effects have been variously quantified as aliased signal, spatial signal, and spatial noise. However, a relationship between these characteristics and human object recognition has not been established in a coherent, mathematical form. We present a heuristic study that characterizes the performance degradation that is due to the spurious response of a sampled imaging system as an effective increase in system blur. A character recognition experiment was performed in which 20 observers responded to 3500 character pairs of blur and sample spacing. A baseline was created where the probability of character recognition was determined as a function of blur without sampling. The sampled characters were then compared with this baseline so that the effect of sampling on character recognition could be determined. Finally, an increase in blur was established as a function of spurious response, which describes the overall effect of sampling on observer character recognition.

© 1999 Optical Society of America

OCIS Codes
(110.0110) Imaging systems : Imaging systems
(110.3000) Imaging systems : Image quality assessment

History
Original Manuscript: February 18, 1998
Revised Manuscript: October 22, 1998
Manuscript Accepted: January 27, 1999
Published: May 1, 1999

Citation
Ronald G. Driggers, Richard Vollmerhausen, and Barbara O’Kane, "Equivalent blur as a function of spurious response of a sampled imaging system: application to character recognition," J. Opt. Soc. Am. A 16, 1026-1033 (1999)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-16-5-1026

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

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

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited