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We describe a Iinearscannermodelthatprovides a useful characterization of the response of a scanner to diffusely reflecting surfaces. We show how the linear model can be used to estimate that portion of the scanner sensor responsivities that fall within the linear space spanned by the input signals. We also describe how the model can be extended to characterize a scanner's response to surfaces that fluoresce under the scanner illuminant.
Brian A. Wandell (Thu,) studied this question.