Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Standard surface-reflectance model and illuminant estimation

Not Accessible

Your library or personal account may give you access

Abstract

In the standard reflectance model for inhomogeneous materials it is assumed that light is reflected by two independent mechanisms. One component is reflected at the interface of the material and air. Light reflected by this mechanism does not interact with surface colorant, and its spectral composition is assumed to equal that of the incident light. The second component is reflected after entering and interacting with the subsurface structure of the material. This interaction substantially changes the spectral composition of the reflected light. We adopt a vector analysis technique for testing the standard reflectance model. Further, we develop a computational method to determine the components of the observed spectra, and we obtain an estimate of the illuminant without using a reference white standard. Finally, we evaluate the accuracy of the standard model and the feasibility of the illuminant spectral estimation by using several test objectives.

© 1989 Optical Society of America

Full Article  |  PDF Article
More Like This
Component estimation of surface spectral reflectance

Shoji Tominaga and Brian A. Wandell
J. Opt. Soc. Am. A 7(2) 312-317 (1990)

Using color for geometry-insensitive segmentation

Glenn Healey
J. Opt. Soc. Am. A 6(6) 920-937 (1989)

Multichannel vision system for estimating surface and illumination functions

Shoji Tominaga
J. Opt. Soc. Am. A 13(11) 2163-2173 (1996)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (15)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (19)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved