The Topography of Asteroid Ida: A Comparison between Photogrammetric and Shape­Form-Shading Image Analysis

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Abstract

We derived high resolution Digital Terrain Models from stereo images of the asteroid Ida that were obtained by the Galileo spacecraft during the flyby in August 1993 and compared these results with terrain models derived from two-dimensional photoclinometry. The comparison shows that there are striking discrepancies between the results from the two models depending on the spatial scale length of surface features. While photogrammetry resolves large- and medium-scale features, photoclinometry successfully resolves small-scale features. Ideally, both methods should be combined to optimize terrain modeling.

Additional publication details

Publication type Conference Paper
Publication Subtype Conference Paper
Title The Topography of Asteroid Ida: A Comparison between Photogrammetric and Shape­Form-Shading Image Analysis
Year Published 1996
Language English
Publisher International Society for Photogrammetry and Remote Sensing
Contributing office(s) Astrogeology Science Center
Description 6 p.
Larger Work Type Book
Larger Work Subtype Conference publication
Larger Work Title Proceedings of XVIIIth ISPRS Congress Technical Commission III: Theory and Algorithms
First page 245
Last page 250
Conference Title XVIIIth ISPRS Congress Technical Commission III: Theory and Algorithms
Conference Location Vienna, Austria
Conference Date July 9-19, 1996
Other Geospatial Ida