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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics


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

Multiresolution foveated laparoscope with high resolvability

Yi Qin, Hong Hua, and Mike Nguyen  »View Author Affiliations

Optics Letters, Vol. 38, Issue 13, pp. 2191-2193 (2013)

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A key limitation of the state-of-the-art laparoscopes for minimally invasive surgery is the tradeoff between the field of view and spatial resolution in a single-view camera system. As such, surgical procedures are usually performed at a zoomed-in view, which limits the surgeon’s ability to see much outside the immediate focus of interest and causes a situational awareness challenge. We proposed a multiresolution foveated laparoscope (MRFL) aiming to address this limitation. The MRFL is able to simultaneously capture wide-angle overview and high-resolution images in real time; it can scan and engage the high-resolution images to any subregion of the entire surgical field in analogy to the fovea of human eye. The MRFL is able to render equivalently 10 million pixel resolution with a low data bandwidth requirement. The system has a large working distance (WD) from 80 to 180 mm. The spatial resolvability is about 45 μm in the object space at an 80 mm WD, while the resolvability of a conventional laparoscope is about 250 μm at a typically 50 mm surgical distance.

© 2013 Optical Society of America

OCIS Codes
(170.2150) Medical optics and biotechnology : Endoscopic imaging
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.3890) Medical optics and biotechnology : Medical optics instrumentation
(220.0220) Optical design and fabrication : Optical design and fabrication

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: March 11, 2013
Manuscript Accepted: May 8, 2013
Published: June 19, 2013

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

Yi Qin, Hong Hua, and Mike Nguyen, "Multiresolution foveated laparoscope with high resolvability," Opt. Lett. 38, 2191-2193 (2013)

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