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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 8, Iss. 8 — Sep. 4, 2013

Surface imaging using a noncontact divergence-ratio axi-vision camera profilometer for laparoscopic and endoscopic applications

Keigo Iizuka  »View Author Affiliations


Applied Optics, Vol. 52, Issue 19, pp. 4663-4671 (2013)
http://dx.doi.org/10.1364/AO.52.004663


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Abstract

Images from ordinary laparoscopes and endoscopes are two dimensional (2D), meaning the surgeon’s depth perception is hindered. The proposed method supplements the 2D image with an image of the depth profile of the surface. The depth profile is obtained in real time without surface contact. The profilometer uses the same principle for acquiring distance information as the divergence-ratio axi-vision camera. The profilometer was added to an ordinary laparoscope with minimal increase in the weight and diameter of the shaft. With the profilometer added, there was a significant improvement in the ability to detect minute protrusions.

© 2013 Optical Society of America

OCIS Codes
(120.3890) Instrumentation, measurement, and metrology : Medical optics instrumentation
(120.3930) Instrumentation, measurement, and metrology : Metrological instrumentation
(120.6650) Instrumentation, measurement, and metrology : Surface measurements, figure
(150.6910) Machine vision : Three-dimensional sensing
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(280.1415) Remote sensing and sensors : Biological sensing and sensors

ToC Category:
Medical Optics and Biotechnology

History
Original Manuscript: April 8, 2013
Manuscript Accepted: May 20, 2013
Published: June 27, 2013

Virtual Issues
Vol. 8, Iss. 8 Virtual Journal for Biomedical Optics

Citation
Keigo Iizuka, "Surface imaging using a noncontact divergence-ratio axi-vision camera profilometer for laparoscopic and endoscopic applications," Appl. Opt. 52, 4663-4671 (2013)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ao-52-19-4663


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References

  1. K. Iizuka, “Divergence-ratio axi-vision camera (Divcam): a distance mapping camera,” Rev. Sci. Instrum. 77, 045111 (2006). [CrossRef]
  2. H. H. Hopkins, “Physics of the fiberoptic endoscope,” in Endoscopy, G. Berci, ed. (Appleton, 1976), pp. 27–63.
  3. M. Popat, Practical Fibreoptic Intubation (Butterworth, 2001).
  4. J. A. Grotenhuis, Endoscope-assisted Microneurosurgery: A Concise Guidebook (Machaon, 1998).
  5. W. B. Boast, Illumination Engineering (McGraw, 1953).

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