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Geometric accuracy of Landsat-4 and Landsat-5 Thematic Mapper images.

Photogrammetric Engineering and Remote Sensing

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Abstract

The geometric accuracy of the Landsat Thematic Mappers was assessed by a linear least-square comparison of the positions of conspicuous ground features in digital images with their geographic locations as determined from 1:24 000-scale maps. For a Landsat-5 image, the single-dimension standard deviations of the standard digital product, and of this image with additional linear corrections, are 11.2 and 10.3 m, respectively (0.4 pixel). An F-test showed that skew and affine distortion corrections are not significant. At this level of accuracy, the granularity of the digital image and the probable inaccuracy of the 1:24 000 maps began to affect the precision of the comparison. The tested image, even with a moderate accuracy loss in the digital-to-graphic conversion, meets National Horizontal Map Accuracy standards for scales of 1:100 000 and smaller. Two Landsat-4 images, obtained with the Multispectral Scanner on and off, and processed by an interim software system, contain significant skew and affine distortions. -Authors

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Geometric accuracy of Landsat-4 and Landsat-5 Thematic Mapper images.
Series title:
Photogrammetric Engineering and Remote Sensing
Volume
51
Issue:
12
Year Published:
1985
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
1893
Last page:
1898
Number of Pages:
6