Evaluating Color Reproduction Accuracy of Stereo One-shot Six-band Camera System

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Abstract:

A stereo one-shot six-band image-capturing system that combines multiband and stereo imaging techniques has been developed. This system can acquire both spectral color information and depth information at the same time. It worked well for two-dimensional objects that have a wavy structure like a tapestry. In this paper, we discuss the accuracy of color reproduced by using this system. In the experiments, several stereo-pair images were captured while the distance between the two cameras was changed. The estimated color and spectral reflectance of a color chart are compared with the measurement results obtained with a spectrometer and estimation results obtained with the two-shot six-band camera system. It is confirmed the average color difference for 24 color patches of a color chart between measurement data and estimation result is dEa*b* = 1.21 at maximum. Finally, demonstrations of image-capturing of three-dimensional object, image transformation, and color reproduction are presented.

Document Type: Research Article

Publication date: January 1, 2011

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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, and a vibrant interactive papers session. An endearing symbol of the meeting is the Cactus Award, given each year to the author(s) of the best interactive paper presentation.
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