Optical time-domain analog pattern correlator for high-speed real-time image recognition.

  title={Optical time-domain analog pattern correlator for high-speed real-time image recognition.},
  author={Sang Hyup Kim and K. Goda and A. Fard and B. Jalali},
  journal={Optics letters},
  volume={36 2},
The speed of image processing is limited by image acquisition circuitry. While optical pattern recognition techniques can reduce the computational burden on digital image processing, their image correlation rates are typically low due to the use of spatial optical elements. Here we report a method that overcomes this limitation and enables fast real-time analog image recognition at a record correlation rate of 36.7 MHz--1000 times higher rates than conventional methods. This technique… Expand
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