Abstract
A Projector-camera (Procam) system is an inexpensive, household, controllable system that can be
used to eliminate inter-reflection existing in the measurement. We propose an estimation method for spectral
reflectance that uses the Procam system. The method recovers reflectance from the training set constructed by
a known reflectance and the corresponding 9D color-mixing matrix. Experiment results show that our method
performs well with 9D response, and the local weighted training set based on Mahalanobis metric can enhance
the accuracy of result efficiently.
© 2013 Chinese Optics Letters
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