TY - GEN
T1 - Specularity removal from imaging spectroscopy data via entropy minimisation
AU - Gu, Lin
AU - Robles-Kelly, Antonio
PY - 2011
Y1 - 2011
N2 - In this paper, we present a method to remove specularities from imaging spectroscopy data. We do this by making use of the dichromatic model so as to cast the problem in a linear regression setting. We do this so as to employ the average radiance for each pixel as a means to map the spectra onto a two-dimensional space. This permits the use of an entropy minimisation approach so as to recover the slope of a line described by a linear regressor. We show how this slope can be used to recover the specular coefficient in the dichromatic model and provide experiments on real-world imaging spectroscopy data. We also provide comparison with an alternative and effect a quantitative analysis that shows our method is robust to changes the degree of specularity of the image or the location of the light source in the scene.
AB - In this paper, we present a method to remove specularities from imaging spectroscopy data. We do this by making use of the dichromatic model so as to cast the problem in a linear regression setting. We do this so as to employ the average radiance for each pixel as a means to map the spectra onto a two-dimensional space. This permits the use of an entropy minimisation approach so as to recover the slope of a line described by a linear regressor. We show how this slope can be used to recover the specular coefficient in the dichromatic model and provide experiments on real-world imaging spectroscopy data. We also provide comparison with an alternative and effect a quantitative analysis that shows our method is robust to changes the degree of specularity of the image or the location of the light source in the scene.
UR - http://www.scopus.com/inward/record.url?scp=84857027281&partnerID=8YFLogxK
U2 - 10.1109/DICTA.2011.18
DO - 10.1109/DICTA.2011.18
M3 - Conference contribution
SN - 9780769545882
T3 - Proceedings - 2011 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2011
SP - 59
EP - 65
BT - Proceedings - 2011 International Conference on Digital Image Computing
T2 - 2011 International Conference on Digital Image Computing: Techniques and Applications, DICTA 2011
Y2 - 6 December 2011 through 8 December 2011
ER -