Electronics
& Communication Technologies
- Hybrid Optical Correlator for Pattern Recognition
Introduction
Pattern recognition involves identification of a reference
pattern in a collection of input patterns. Optical correlators
play a crucial role in the development of pattern recognition
systems. A hybrid optical correlator incorporates the
parallel processing capabilities of optical systems
and the ruggedness and accuracy of electronic systems.
A prototype compact optical correlator has been developed
for machine vision applications. The system has been
developed with commercially available components such
as laser diode, spatial light modulators (SLM) and CCD
cameras, controlled by personal computer. The architectures
of joint-transform correlation and matched filter correlation
are simultaneously incorporated in the prototype, which
has been tested for fingerprint identification applications.
Salient features:
Real-time identification of targets, Video-rate operation,
PC based user interface
Prospective Users: Product
inspection industry, access control monitoring, forensic
science, automatic target tracking, autonomous vehicle
guidance, satellite imagery, printed circuit board inspection,
textile defect detection, detection of specific cells
in biological tissues.
Developed by : Prof. Singh
Kehar Department: Physics
Contact:
Managing Director
Foundation for Innovation and Technology Transfer (FITT)
Indian Institute of Technology, Delhi
Hauz Khas, New Delhi-110016, INDIA
Tel : 91-011-26597167, 26857762, 26581013, 26597153
Fax : 91-011-26851169
E-mail : drkdpn@gmail.com
