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Proceedings Paper

Blur spot limitations in distal endoscope sensors
Author(s): Avi Yaron; Mark Shechterman; Nadav Horesh
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Paper Abstract

In years past, the picture quality of electronic video systems was limited by the image sensor. In the present, the resolution of miniature image sensors, as in medical endoscopy, is typically superior to the resolution of the optical system. This "excess resolution" is utilized by Visionsense to create stereoscopic vision. Visionsense has developed a single chip stereoscopic camera that multiplexes the horizontal dimension of the image sensor into two (left and right) images, compensates the blur phenomena, and provides additional depth resolution without sacrificing planar resolution. The camera is based on a dual-pupil imaging objective and an image sensor coated by an array of microlenses (a plenoptic camera). The camera has the advantage of being compact, providing simultaneous acquisition of left and right images, and offering resolution comparable to a dual chip stereoscopic camera with low to medium resolution imaging lenses. A stereoscopic vision system provides an improved 3-dimensional perspective of intra-operative sites that is crucial for advanced minimally invasive surgery and contributes to surgeon performance. An additional advantage of single chip stereo sensors is improvement of tolerance to electronic signal noise.

Paper Details

Date Published: 27 January 2006
PDF: 7 pages
Proc. SPIE 6055, Stereoscopic Displays and Virtual Reality Systems XIII, 605509 (27 January 2006); doi: 10.1117/12.659385
Show Author Affiliations
Avi Yaron, Visionsense Inc. (United States)
Mark Shechterman, Visionsense Ltd. (Israel)
Nadav Horesh, Visionsense Ltd. (Israel)

Published in SPIE Proceedings Vol. 6055:
Stereoscopic Displays and Virtual Reality Systems XIII
Andrew J. Woods; Mark T. Bolas; Ian E. McDowall; Neil A. Dodgson; John O. Merritt, Editor(s)

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