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Use of the variable gain settings on SPOT

Photogrammetric Engineering and Remote Sensing

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Abstract

Often the brightness or digital number (DN) range of satellite image data is less than optimal and uses only a portion of the available values (0 to 255) because the range of reflectance values is small. Most imaging systems have been designed with only two gain settings, normal and high. The SPOT High Resolution Visible (HRV) imaging system has the capability to collect image data using one of eight different gain settings. With the proper procedure this allows the brightness or reflectance resolution, which is directly related to the range of DN values recorded, to be optimized for any given site as compared to using a single set of gain settings everywhere. -from Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Use of the variable gain settings on SPOT
Series title:
Photogrammetric Engineering and Remote Sensing
Volume
55
Issue:
2
Year Published:
1989
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Photogrammetric Engineering and Remote Sensing
First page:
195
Last page:
201