Share Email Print
cover

Proceedings Paper

Mapping luminance into brightness: an object-oriented approach
Author(s): Frans J. J. Blommaert; Jean-Bernard Martens
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

An object-oriented model for the brightness perception of static images is presented. The philosophy behind the model is that the visual system aims at, a representation of brightness that displays object properties and is consequently insensitive to variations in light source and viewing conditions. The model assumes an ensemble of neural units that differ in receptive field size, that is, identical operations are performed at a number of spatial scales. The operating characteristics reflect the behaviour of typical cells in the visual pathway, such as ganglion cells, and are robust against variations in light level. The brightness at each retinal position is the weighted sum of neural activities that exist at this position in the different scales. The weighting function is such that the brightness impression is robust against variation in viewing distance. In this paper it is shown that the model is able to unify different aspects of brightness perception such as brightness induction, brightness assimilation and the perception of different brightness illusions.

Paper Details

Date Published: 1 October 1990
PDF: 11 pages
Proc. SPIE 1249, Human Vision and Electronic Imaging: Models, Methods, and Applications, (1 October 1990); doi: 10.1117/12.19666
Show Author Affiliations
Frans J. J. Blommaert, Eindhoven Univ. of Technology (Netherlands)
Jean-Bernard Martens, Eindhoven Univ. of Technology (Netherlands)


Published in SPIE Proceedings Vol. 1249:
Human Vision and Electronic Imaging: Models, Methods, and Applications
Bernice E. Rogowitz; Jan P. Allebach, Editor(s)

© SPIE. Terms of Use
Back to Top