Journal of the Optical Society of Korea

Optical Society of Korea (한국광학회)
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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
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Abstract

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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References

  1. M. Banham and A. Katsaggelos, "Digital image restoration," IEEE Signal Process. Mag. 14, 24-41 (1997).
  2. M. A. Kutay and H. M. Ozaktas, "Optimal image restoration with the fractional fourier transform," J. Opt. Soc. Am. A 15, 825-833 (1998). https://doi.org/10.1364/JOSAA.15.000825
  3. H.-Y. Lin and X.-H. Chou, "Defocus blur parameters identification by histogram matching," J. Opt. Soc. Am. A 29, 1964-1706 (2012).
  4. S. Wu, W. Lin, S. Xie, Z. Lu, E. P. Ong, and S. Yao, "Blind blur assessment for vision-based applications," J. Vis. Commun. Image Represent. 20, 231-241 (2009). https://doi.org/10.1016/j.jvcir.2009.03.002
  5. I. van Zyl Marais and W. H. Steyn, "Robust defocus blur identification in the context of blind image quality assessment," Signal Process. Image Commun. 22, 833-844 (2007). https://doi.org/10.1016/j.image.2007.06.003
  6. D. Rajan, S. Chaudhuri, and M. Joshi, "Multi-objective super resolution: Concepts and examples," IEEE Signal Process. Mag. 20, 49-61 (2003). https://doi.org/10.1109/MSP.2003.1203209
  7. J. Yang and D. Schonfeld, "Virtual focus and depth estimation from defocused video sequences," IEEE Trans. Image Process. 19, 668-679 (2010). https://doi.org/10.1109/TIP.2009.2036708
  8. C. Swain and T. Chen, "Defocus-based image segmentation," IEEE International Conference on Acoustics, Speech, and Signal Processing 4, 2403-2406 (1995).
  9. Z. Liu, W. Li, L. Shen, Z. Han, and Z. Zhang, "Automatic segmentation of focused objects from images with low depth of field," Pattern Recogn. Lett. 31, 572-581 (2010). https://doi.org/10.1016/j.patrec.2009.11.016
  10. K. Pradeep and A. Rajagopalan, "Improving shape from focus using defocus cue," IEEE Trans. Image Process. 16, 1920-1925 (2007). https://doi.org/10.1109/TIP.2007.899188
  11. S. Chaudhuri and A. Rajagopalan, Depth from Defocus: A Real Aperture Imaging Approach (Springer-Verlag, 1998).
  12. J. Lin, C. Zhang, and Q. Shi, "Estimating the amount of defocus through a wavelet transform approach," Pattern Recogn. Lett. 25, 407-411 (2004). https://doi.org/10.1016/j.patrec.2003.11.003
  13. C. J. Weaver and J. W. Goodman, "A technique for optically convolving two functions," Appl. Opt. 5, 1248-1249 (1966). https://doi.org/10.1364/AO.5.001248
  14. P. D. Gianino and J. L. Horner, "Phase-only matched filtering," Appl. Opt. 23, 812-816 (1984). https://doi.org/10.1364/AO.23.000812
  15. G. G. Mu, X. M. Wang, and Z. Q. Wang, "Amplitude-compensated matched filtering," Appl. Opt. 27, 3461-3463 (1988). https://doi.org/10.1364/AO.27.003461
  16. M. S. Alam, J. Khan, and A. Bai, "Heteroassociative multiple-target tracking by fringe-adjusted joint transform correlation," Appl. Opt. 43, 358-365 (2004). https://doi.org/10.1364/AO.43.000358
  17. M. H. Jeong, "Coded single input channel for color pattern recognition in joint transform correlator," J. Opt. Soc. Korea 15, 335-339 (2011). https://doi.org/10.3807/JOSK.2011.15.4.335
  18. J. W. Goodman, Introduction to Fourier Optics, 2nd ed. (McGraw-Hill, 1996).

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