Position-invariant two-dimensional image correlation using a one-dimensional space integrating optical processor: application to security verification

Bahram Javidi; Jun Wang

doi:10.1117/1.600852

1 September 1996 Position-invariant two-dimensional image correlation using a one-dimensional space integrating optical processor: application to security verification

Bahram Javidi; Jun Wang

Author Affiliations +

Optical Engineering, 35(9), (1996). https://doi.org/10.1117/1.600852

Abstract

We describe a 1-D space integrating optical processor that can perform position-invariant 2-D image correlation by 1-D scanning the input image over a 2-D reference image along a coordinate axis, which we shall refer to as the x axis in a Cartesian coordination system. The 2-D reference function is a position-invariant filter that is designed using distortion-invariant pattern recognition techniques to provide tolerance to misalignments along the y axis between the input image and the reference function during the 1-D spatial correlation. Applications of this system to phase-encoded image recognition and fingerprint recognition are described.

Citation Download Citation

Bahram Javidi, Bahram Javidi, Jun Wang, Jun Wang, } "Position-invariant two-dimensional image correlation using a one-dimensional space integrating optical processor: application to security verification," Optical Engineering 35(9), (1 September 1996). https://doi.org/10.1117/1.600852 . Submission:

ACCESS THE FULL ARTICLE

PERSONAL SIGN IN
Full access may be available with your subscription

Email or Username Forgot your username?

Password Forgot your password?

Show

Remember Email/Username on this computer

Remember Password

No SPIE account? Create an account
or Institutional Sign In via Shibboleth

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: $20.00

Non-members: $25.00 ADD TO CART

Show All Keywords

Keywords/Phrases

Search In:

Publication Years