Image Identification System Based on an Optical Broadcast Neural Network and a Pulse Coupled Neural Network Preprocessor Stage
Articles
Overview
published in
- APPLIED OPTICS Journal
publication date
- April 2008
start page
- 52
end page
- 63
issue
- 10
volume
- 47
Digital Object Identifier (DOI)
International Standard Serial Number (ISSN)
- 1559-128X
Electronic International Standard Serial Number (EISSN)
- 2155-3165
abstract
- We describe the concept of a vision system based on an optoelectronic hardware neural processor. The proposed system is composed of a pulse coupled neural network (PCNN) preprocessor stage that converts an input image into a temporal pulsed pattern. These pulses are inputs to the optical broadcast neural network (OBNN) processor, which classifies the input pattern between a set of reference patterns based on a pattern matching strategy. The PCNN is to provide immunity to the scale, rotation, and translation of objects in the image. The OBNN provides high parallelism and a high speed hardware neural processor.