Title

Determining Wet Surfaces From Dry

Abstract

Wet surfaces are ubiquitous in our visual experience. Autonomous machines with vision systems will need to identify wet surfaces from dry. Wet surfaces (especially rough, absorbent ones) appear darker when wet. This paper presents the Lekner and Dorf model for describing the darkening caused by wetting. We explain how to use this optics model to transform intensity values of a region of an image to make that region appear wet. We also show how the model can be reversed in order to make a wet part of an image appear dry. It is also shown that this technique can be used to identify wet regions. This identification is contrasted with darkening caused by shadows. Comparisons of the gray-level histograms of these real images show the validity of this approach for distinguishing wet surfaces from dry.

Publication Date

1-1-1995

Publication Title

IEEE International Conference on Computer Vision

Number of Pages

963-968

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

0029215518 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/0029215518

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