4 October 2012 Development of a miniature single lens dual-aperture stereo imaging system towards stereo endoscopic imaging application
Author Affiliations +
Abstract
Studies have shown that stereo images improve surgeons' visuomotor tasks and therefore constructively affect the outcome of a minimally invasive surgery. Stereo images are captured by a stereo endoscope, which consists commonly of duplicate lens systems. However, stereo images can also be captured by a single lens system following a dual aperture scheme (DAS). DAS creates two spatially separated optical channels by placing a dual aperture plate in the limiting aperture of a single lens system. This paper describes efforts to miniaturize the DAS-based imaging system for use in minimally invasive surgery. To demonstrate feasibility, a prototype was fabricated using lens elements 3 mm in diameter and was tested for its stereo depth effect (SDE). The SDE of the prototype was then compared to a duplicate lens system that was constructed theoretically in the same diameter as the 3-mm prototype. The results show that the prototype yields 4/7 of the SDE of the theoretical model. However, the SDE of the prototype provides sufficient SDE, in a viewing range of 1 to 2.5 cm from the lens, for minimally invasive surgery.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE)
Sam Y. Bae, Ronald J. Korniski, John M. Choi, Michael Shearn, Poyan Bahrami, Harish M. Manohara, Hrayr K. Shahinian, "Development of a miniature single lens dual-aperture stereo imaging system towards stereo endoscopic imaging application," Optical Engineering 51(10), 103202 (4 October 2012). https://doi.org/10.1117/1.OE.51.10.103202 . Submission:
JOURNAL ARTICLE
6 PAGES


SHARE
Back to Top