CONFERENCE PROCEEDINGS
Advanced Search
Home > Journals > Opt. Eng. > Volume 28 > Issue 5 > Article
1 May 1989 Transform-Ratio Ternary Phase-Amplitude Filter Formulations For Character Recognition
Mary E. Milkovich, David L. Flannery, John S. Loomis
Author Affiliations +
Optical Engineering, Vol. 28, Issue 5, 285487 (May 1989). https://doi.org/10.1117/12.7976986
Abstract
Five types of discrete-valued correlation filters, including binary phase-only and ternary phase-amplitude types, were tested in simulations addressing specific character recognition problems. The filters were evaluated for classification accuracy and correlation efficiency. Transform-ratio filter ternary phase-amplitude filters provided the best classification performance but also the lowest correlation efficiency.
Citation Download Citation
Mary E. Milkovich, David L. Flannery, and John S. Loomis "Transform-Ratio Ternary Phase-Amplitude Filter Formulations For Character Recognition," Optical Engineering 28(5), 285487 (1 May 1989). https://doi.org/10.1117/12.7976986
Published: 1 May 1989
ACCESS THE FULL ARTICLE
ORGANIZATIONAL
Sign in with credentials provided by your organization.
INSTITUTIONAL
Select your institution to access the SPIE Digital Library.
SELECT YOUR INSTITUTION
PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
PERSONAL SIGN IN
No SPIE Account? Create one
PURCHASE THIS CONTENT
SUBSCRIBE TO DIGITAL LIBRARY
50 downloads per 1-year subscription
Members: $195
Non-members: $335 ADD TO CART
25 downloads per 1 - year subscription
Members: $145
Non-members: $250 ADD TO CART
PURCHASE SINGLE ARTICLE
Includes PDF, HTML & Video, when available
Members: $24.00
Non-members: $28.00 ADD TO CART
JOURNAL ARTICLE
 7 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Lens.org Logo
CITATIONS
Cited by 13 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Optical character recognition
Image filtering
Phase only filters
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top