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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea

| PUBLISHED BY THE OPTICAL SOCIETY OF KOREA

  • Vol. 1, Iss. 2 — Sep. 30, 1997
  • pp: 90–93

Microscopic Images with Extended Depth of Focus - Implementation and its Limitations

Kie-B. Nahm, Eun-S. Shin, and Seok-M. Ryoo  »View Author Affiliations


Journal of the Optical Society of Korea, Vol. 1, Issue 2, pp. 90-93 (1997)


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Abstract

The shallow depth of focus in conventional light microscopy hinders the observation of the whole image when the object is thicker than the depth of field. Most of the existing techniques measured the object distance, which is not necessarily the actual distance of each pixel in the image. We implemented a means of determining the "best focus" of each pixel and located the height of object points by sectioning at different sample heights. Combining the height information and its gray values together, we obtained an image where the blur from the finite depth of focus is eliminated. Limitations of the technique are discussed together with composed images.ed images.

© 1997 Optical Society of Korea

History
Original Manuscript: August 1, 1997
Published: September 1, 1997

Citation
Kie-B. Nahm, Eun-S. Shin, and Seok-M. Ryoo, "Microscopic Images with Extended Depth of Focus - Implementation and its Limitations," J. Opt. Soc. Korea 1, 90-93 (1997)
http://www.opticsinfobase.org/josk/abstract.cfm?URI=josk-1-2-90


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References

  1. Tympel, V., Proc. SPIE, 2984, 190 (1997) [CrossRef]
  2. Goldberg, N., "Camera Technology", (Academic Press 1992) Chapter 1
  3. Shaw, P.J., Comparison of Wide-Field/Deconvolution and Confocal Microscopy for 3D Imaging, in "Hand-book of Biological Confocal Microscopy" , J. Pawley ed., (Plenum, New York, 1995) Chapter 23
  4. Holmes T.J. et ai, Light Microscopic Images Recon-structed by Maximum Likelyhood Deconvolution, in "Handbook of Biological Confocal Microscopy" , J. Paw-ley ed., (Plenum, New York, 1995) Chapter 24

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