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Illumination-Independent Color Reproduction in Medicine and Its Evaluation

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A system of illuminant-independent color reproduction has been developed for practical use in medicine, and its performance was subjectively evaluated by a group of healthcare professionals of various specialties. For medical diagnosis, it is important to archive image data of diseased skin for the purpose of visually reviewing its chronological changes. However, sufficient color reproduction quality has never developed for this purpose. First, the illuminant conditions at various locations in a university hospital were measured and it was found that illuminants used in the hospital have a wide range of colors and that some of them have color rendering index (Ra) values that are too low for ordinary colorimetric color reproduction. Therefore, the multi-spectral imaging technique was applied for the illuminant-independent color reproduction to correct the color adaptively to the various kinds of illuminant. The healthcare professionals group evaluated the reproduced skin color by comparing the images with real skin. The results verify the effectiveness of the developed system and also expose the medical need for shading reproduction in addition to averaged color reproduction.
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Document Type: Research Article

Publication date: January 1, 2005

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  • CIC is the premier annual technical gathering for scientists, technologists, and engineers working in the areas of color science and systems, and their application to color imaging. Participants represent disciplines ranging from psychophysics, optical physics, image processing, color science to graphic arts, systems engineering, and hardware and software development. While a broad mix of professional interests is the hallmark of these conferences, the focus is color. CICs traditionally offer two days of short courses followed by three days of technical sessions that include three keynotes, an evening lecture, a vibrant interactive (poster) papers session, and workshops. An endearing symbol of the meeting is the Cactus Award, given each year to the author(s) of the best interactive paper; there are also Best Paper and Best Student Paper awards.

    Please note: for Purposes of its Digital Library content, IS&T defines Open Access as papers that will be downloadable in their entirety for free in perpetuity. Copyright restrictions on papers vary; see individual paper for details.

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