Contrast enhancement based on entropy and reflectance analysis for surgical lighting

Junfei Shen; Huihui Wang; Yisi Wu; An Li; Chi Chen; Zhenrong Zheng

doi:10.1117/12.2183661

15 July 2015 Contrast enhancement based on entropy and reflectance analysis for surgical lighting

Junfei Shen, Huihui Wang, Yisi Wu, An Li, Chi Chen, Zhenrong Zheng

Proceedings Volume 9537, Clinical and Biomedical Spectroscopy and Imaging IV; 95371O (2015) https://doi.org/10.1117/12.2183661
Event: European Conferences on Biomedical Optics, 2015, Munich, Germany

Abstract

Light-emitting diode (LED) is the neotype surgical lighting device as an inexpensive and color-variable illumination. A methodology was designed to value the quality of surgical lighting and used to develop an operation lamp with LEDs enhancing the biological contrast. We assembled a modular array of Phillips LEDs as illumination. In the initial experiment, images of porcine heart were carried out in several LED environments and analyzed quantitatively to assess the function of these LEDs in contrast enhancement. Then we measured the reflectance spectrums of blood, fat and other tissues to obtain the spectral comparison. Based on the result, new illuminations with spectral components which differ most in the comparison was developed. Meanwhile, a new evaluation function combining the entropy analysis and brightness contrast was also built to value the quality of these illuminations. Experiments showed biological features are more visible with treated LED illuminations than the broadband lamps. Thus, the synthesis of LED lighting spectra could be adjusted to provide significant tissue identification. Therefore, we believe the new methodology will contribute to the manufacture of high efficient medical illuminations and act the positive role in coming surgical lighting fields.

Citation Download Citation

Junfei Shen, Huihui Wang, Yisi Wu, An Li, Chi Chen, and Zhenrong Zheng "Contrast enhancement based on entropy and reflectance analysis for surgical lighting", Proc. SPIE 9537, Clinical and Biomedical Spectroscopy and Imaging IV, 95371O (15 July 2015); https://doi.org/10.1117/12.2183661

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Light emitting diodes

Tissues

Heart

Blood

LED lighting

Light sources and illumination

Lamps

Show All Keywords

Keywords/Phrases

Search In:

Publication Years