Procesado óptico de imágenes mediante moduladores espaciales de luz.

María Josefa Yzuel


This paper describes some color pattern recognition techniques based on correlation. Spatial light modulators with twisted nematic liquid crystal panels are used in order to obtain the correlation optically and in real time. A SLM with amplitude-only modulation displays the scene and a SLM with phase-only modulation displays the filter. A representation of the color image as a threedimensional image is described. From the 3D information a 2D encoded image is obtained. Finally, experimental results that verify the capability of a one-step optical pattern recognition for colour images are shown.

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