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

Component estimation of surface spectral reflectance

Not Accessible

Your library or personal account may give you access

Abstract

For inhomogeneous materials, the standard reflectance model suggests that under all viewing geometries surface reflectance functions can be described as the sum of a constant function of wavelength (specular) and a diffuse function that is characteristic of the material. As the viewing geometry varies, the relative contribution of these two terms varies. In a previous study [ J. Opt. Soc. Am. A 6, 576 ( 1989)] we described how to use light reflected from inhomogeneous materials, measured in different viewing geometries, to estimate the relative spectral power distribution of the ambient light. Here we show that two restrictions, that (a) surface reflectance functions are all nonnegative and (b) surface reflectance functions are the positive weighted sum of subsurface (diffuse) and interface (specular) components, may be used to estimate the subsurface component of the surface reflectance function. A band of surface spectral reflectances is recovered, as possible solutions for the subsurface estimates.

© 1990 Optical Society of America

Full Article  |  PDF Article
More Like This
Standard surface-reflectance model and illuminant estimation

Shoji Tominaga and Brian A. Wandell
J. Opt. Soc. Am. A 6(4) 576-584 (1989)

Diffuse-reflectance model for smooth dielectric surfaces

Lawrence B. Wolff
J. Opt. Soc. Am. A 11(11) 2956-2968 (1994)

Improved method for spectral reflectance estimation and application to mobile phone cameras

Shoji Tominaga, Shogo Nishi, Ryo Ohtera, and Hideaki Sakai
J. Opt. Soc. Am. A 39(3) 494-508 (2022)

References

You do not have subscription access to this journal. Citation lists with outbound citation 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

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 (10)

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 (11)

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

Metrics

Select as filters


Select Topics Cancel
© Copyright 2022 | Optica Publishing Group. All Rights Reserved