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A Spectral Reflectance Measuring System which Corrects for Lateral Diffusion Error and Effects of Adjacent Surface Colors

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Lateral diffusion error (LDE) is defined and the conventional methods of instrument configuration which minimize it are discussed. In 1999 it was discovered that the amount of light that laterally diffuses from an illuminated sample area to the adjacent unilluminated area is related to the spatial distribution of the light reflected by the illuminated area of the sample. A breadboard spectro-reflectometer which makes use of this relationship to correct for LDE has been built and test results are reported. Papers presented at the 2000 & 2001 TAGA meeting reported that printed colored areas adjacent to an unprinted area can affect the measured spectral reflectance value. This problem was attributed to bilateral diffusion of light between the area being measured and the adjacent printed colored area. The breadboard instrument was tested to determine if its capability to correct for LDE would result in correction of errors due to adjacent colors.
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Document Type: Research Article

Publication date: January 1, 2002

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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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