Prism-based tri-aperture laparoscopic objective for multi-view acquisition

Elliott Kwan, Hong Hua

Research output: Contribution to journalArticlepeer-review

Abstract

This paper presents the design and prototype of a novel tri-aperture monocular laparoscopic objective that can acquire both stereoscopic views for depth information and a wide field of view (FOV) for situational awareness. The stereoscopic views are simultaneously captured via a shared objective with two displaced apertures and a custom prism. Overlapping crosstalk between the stereoscopic views is diminished by incorporating a strategically placed vignetting aperture. Meanwhile, the wide FOV is captured via a central third aperture of the same objective and provides a 2D view of the surgical field 2x as large as the area imaged by the stereoscopic views. We also demonstrate how the wide FOV provides a reference data set for stereo calibration, which enables absolute depth mapping in our experimental prototype.

Original languageEnglish (US)
Pages (from-to)2836-2851
Number of pages16
JournalOptics Express
Volume30
Issue number2
DOIs
StatePublished - Jan 17 2022
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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