Stroboscopic illumination scheme for seamless 3D endoscopy

Neil T. Clancy; Danail Stoyanov; Guang-Zhong Yang; Daniel S. Elson

doi:10.1117/12.909360

28 February 2012 Stroboscopic illumination scheme for seamless 3D endoscopy

Neil T. Clancy, Danail Stoyanov, Guang-Zhong Yang, Daniel S. Elson

Proceedings Volume 8214, Advanced Biomedical and Clinical Diagnostic Systems X; 82140M (2012) https://doi.org/10.1117/12.909360
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

Intraoperative 3D imaging during minimally invasive surgery (MIS) is possible using structured lighting and has applications in the quantification of tissue morphology. However, projection schemes containing various patterns and colours can be disruptive to the surgeon's field of view. In this paper, a stroboscopic system is proposed in which structured lighting and white light images are interleaved during a high-speed camera acquisition so that the patterned light is not perceived and white light can be used solely for navigation and visual assessment. A beam chopper synchronised with the camera switches rapidly between the two lighting modes while still providing video rate display. A spectrally-encoded structured lighting system is provided by an optical fibre-based probe developed in our lab and is suitable for use in endoscopic biopsy channels. In this dual acquisition mode it is possible to display an augmented view so that the centroids of the structured lighting features are visible on the white light image. Sequential acquisition of varying exposure time images with the high speed camera also allowed the generation of high dynamic range images of the wavelength-encoded structured lighting pattern. Possible applications of this work include classification of polyp morphology as an indicator of pathology.

Citation Download Citation

Neil T. Clancy, Danail Stoyanov, Guang-Zhong Yang, and Daniel S. Elson "Stroboscopic illumination scheme for seamless 3D endoscopy", Proc. SPIE 8214, Advanced Biomedical and Clinical Diagnostic Systems X, 82140M (28 February 2012); https://doi.org/10.1117/12.909360

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available