OSA's Digital Library

Applied Optics

Applied Optics


  • Vol. 37, Iss. 5 — Feb. 10, 1998
  • pp: 821–827

Improved feature extraction by use of a joint wavelet transform correlator

Boon Yi Soon, Mohammad S. Alam, and Mohammad A. Karim  »View Author Affiliations

Applied Optics, Vol. 37, Issue 5, pp. 821-827 (1998)

View Full Text Article

Enhanced HTML    Acrobat PDF (575 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A new joint wavelet transform correlation-based technique is proposed for feature extraction such as the detection of edges in an unknown input scene. We exploited a modified version of the Roberts and the Sobel wavelet filters as reference images for extracting the edges of an unknown input scene. The performance of the proposed technique with the aforementioned wavelet filters is evaluated and compared by use of numerical simulations. For noise-free input scenes the Roberts wavelet filter was found to yield a superior output compared with that of the Sobel wavelet filter. However, for noisy input scenes the Sobel wavelet filter was found to yield a better output compared with the Roberts wavelet filter.

© 1998 Optical Society of America

OCIS Codes
(070.2590) Fourier optics and signal processing : ABCD transforms
(070.5010) Fourier optics and signal processing : Pattern recognition
(100.5010) Image processing : Pattern recognition
(100.7410) Image processing : Wavelets
(120.2440) Instrumentation, measurement, and metrology : Filters

Original Manuscript: February 24, 1997
Revised Manuscript: September 23, 1997
Published: February 10, 1998

Boon Yi Soon, Mohammad S. Alam, and Mohammad A. Karim, "Improved feature extraction by use of a joint wavelet transform correlator," Appl. Opt. 37, 821-827 (1998)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. C. S. Weaver, J. W. Goodman, “Technique for optically convolving two functions,” Appl. Opt. 5, 1248–1249 (1966). [CrossRef] [PubMed]
  2. B. Javidi, C. J. Kuo, “Joint transform image correlation using a binary spatial light modulator at the Fourier plane,” Appl. Opt. 27, 663–665 (1988). [CrossRef] [PubMed]
  3. W. B. Hahn, D. L. Flannery, “Design elements of binary joint transform correlation and selected optimization techniques,” Opt. Eng. 31, 896–905 (1992). [CrossRef]
  4. M. S. Alam, M. A. Karim, “Fringe-adjusted joint transform correlation,” Appl. Opt. 32, 4344–4350 (1993). [CrossRef] [PubMed]
  5. M. S. Alam, “Fractional power fringe-adjusted joint transform correlation,” Opt. Eng. 34, 3208–3216 (1995). [CrossRef]
  6. X. J. Lu, A. Katz, E. G. Kanterakis, N. P. Caviris, “Joint transform correlator that uses wavelet transforms,” Opt. Lett. 17, 1700–1702 (1992). [CrossRef] [PubMed]
  7. W. Wang, G. Jin, Y. Yan, M. Wu, “Joint wavelet-transform correlator for image feature extraction,” Appl. Opt. 34, 370–376 (1995). [CrossRef] [PubMed]
  8. F. Ahmed, M. A. Karim, M. S. Alam, “Wavelet transform-based correlator for the recognition of rotationally distorted images,” Opt. Eng. 34, 3187–3192 (1995). [CrossRef]
  9. F. T. J. Johnson, T. H. Barnes, T. Eiju, T. G. Haskell, K. Matsuda, “Analysis of a joint transform correlator using a phase-only spatial light modulator,” Opt. Eng. 30, 1947–1957 (1991). [CrossRef]
  10. R. C. Gonzalez, R. E. Woods, Digital Image Processing (Addison-Welsey, New York, 1993).
  11. A. K. Cherri, M. A. Karim, “Edge enhancement using optical symbolic substitution,” Opt. Eng. 30, 259–264 (1991). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited