Image Identification System Based on an Optical Broadcast Neural Network and a Pulse Coupled Neural Network Preprocessor Stage Articles uri icon

publication date

  • April 2008

start page

  • 52

end page

  • 63


  • 10


  • 47

International Standard Serial Number (ISSN)

  • 1559-128X

Electronic International Standard Serial Number (EISSN)

  • 2155-3165


  • 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.