Optimal illumination selection for structured light 3D endoscopy based on hyperspectral projection

Xiaopeng Chen; Xingjun Gao; Qing Yang; Ji Qi

doi:10.1117/12.2686446

27 November 2023 Optimal illumination selection for structured light 3D endoscopy based on hyperspectral projection

Xiaopeng Chen, Xingjun Gao, Qing Yang, Ji Qi

Proceedings Volume 12770, Optics in Health Care and Biomedical Optics XIII; 127701S (2023) https://doi.org/10.1117/12.2686446
Event: SPIE/COS Photonics Asia, 2023, Beijing, China

Conference Poster

Abstract

Structured light 3D surface imaging reconstructs the 3D surface shape of an object by analyzing the deformation of a projected structured-light pattern. The detection of the pattern is a crucial step in this technique, which can be affected by the blurring of the patterns due to tissue scattering and absorbing. In this study we experimentally investigate how the projected structured light based on hyperspectral projection. A hyperspectral projector is constructed to generate patterns of different wavelengths, bandwidth and densities. The projected structured light is tested on porcine tissue in vitro. The sharpness of all the patterns and property of tissue are evaluated. The results indicate that tissue-dependent wavelength of light with appropriate density of pattern yield optimal illumination which corresponds to 3D reconstruction accuracy for structured light 3D endoscopy.

Citation Download Citation

Xiaopeng Chen, Xingjun Gao, Qing Yang, and Ji Qi "Optimal illumination selection for structured light 3D endoscopy based on hyperspectral projection", Proc. SPIE 12770, Optics in Health Care and Biomedical Optics XIII, 127701S (27 November 2023); https://doi.org/10.1117/12.2686446

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