Color encoding for polychromatic single-channel optical pattern recognition

David Mendlovic, Pascuala García-Martínez, Javier García, Carlos Ferreira

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


The common multichannel system for recognizing colored images is replaced by a color-encoded single-channel system. A method inspired by the Munsell color system is used for encoding the different colors as phase and amplitude functions. It is shown that for many practical cases the phase information part of the color code is sufficient for obtaining good results. An implementation based on a liquid-crystal television panel that works in a phase-modulation mode is suggested. Computer simulations that demonstrate the capabilities of the suggested method are given as well as a comparison with previously published multichannel performance.

Original languageEnglish
Pages (from-to)7538-7544
Number of pages7
JournalApplied Optics
Issue number32
StatePublished - Nov 1995


  • Color pattern recognition
  • Phase encoding


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