Image Blurring Estimation and Calibration with a Joint Transform Correlator

  • Jeong, Man Ho (Department of Laser & Optical Information Engineering, Cheongju University)
  • Received : 2014.06.30
  • Accepted : 2014.08.18
  • Published : 2014.10.25


The Joint Transform Correlator (JTC) has been the most suitable technique for real time optical pattern recognition and target tracking applications. This paper proposes a new application of the JTC system for an analysis of the blurring effect of the optical images caused by a defocused lens. We present the relation between the correlation peak, optical transfer function (OTF), and the amount of blurring caused by focusing error. Moreover, we show a possibility of calibrating the blurred image by simply measuring the correlation peak.


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