Abstract
Abstract-Shaded overlays for maps give the user an immediate appreciation for the surface topography since they appeal to an important visual depth cue. A brief review of the history of manual methods is followed by a discussion of a number of methods that have been proposed for the automatic generation of shaded overlays. These techniques are compared using the reflectance map as a common representation for the dependence of tone or gray level on the orientation of surface elements. I.
Keywords
ShadingOverlayReflectivityPhotometric stereoRemote sensingOrientation (vector space)Computer scienceComputer graphics (images)GeologyRepresentation (politics)Computer visionArtificial intelligenceOpticsImage (mathematics)MathematicsGeometryPhysics
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Publication Info
- Year
- 1981
- Type
- article
- Volume
- 69
- Issue
- 1
- Pages
- 14-47
- Citations
- 1269
- Access
- Closed
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Cite This
Berthold K. P. Horn
(1981).
Hill shading and the reflectance map.
Proceedings of the IEEE
, 69
(1)
, 14-47.
https://doi.org/10.1109/proc.1981.11918
Identifiers
- DOI
- 10.1109/proc.1981.11918