Use of a spectrally-tunable source to explore improvement in chromatic contrast for illumination of tissues

Published

February 11, 2010

Author(s)

Maritoni A. Litorja, Ben Ecker

Abstract

Human vision by a clinical practitioner is often the first disease detection tool. Illumination for such procedures as endoscopy use broadband white light, with luminance level being the only control available. The use of staining dyes for contrast improvement have shown limited adoption due to the additional steps needed and small number of approved dyes for in vivo use. Here we explore the control of the illuminant spectral distribution to improve chromatic contrast without the use of dyes. The computational steps used in converting spectral data to RGB and use of the CIELAB chromatic and luminance contrast metric as criteria in determining the appropriate lighting spectral distribution will be discussed.

Proceedings Title

Proceedings of the SPIE:Emerging Digital Micromirror Device Based Systems and Applications II

Conference Dates

January 24-28, 2010

Conference Location

San Francisco, CA

Conference Title

SPIE Photonics West 2010

Pub Type

Conferences

Keywords

Color Contrast, Hyperspectral Imaging, Tissue Reflectance, Spectrally Tunable Source

Citation

Litorja, M. and Ecker, B. (2010), Use of a spectrally-tunable source to explore improvement in chromatic contrast for illumination of tissues, Proceedings of the SPIE:Emerging Digital Micromirror Device Based Systems and Applications II , San Francisco, CA (Accessed April 28, 2024)