VIA Technologies EPIA SN-Series Specifications download pdf (Page 35)

Remote Sensing and Photogrammetry, State of the Art Technologies

for panchromatic images and 2800 for multispectral data, while the achievable GSD is

0.19 m. In the following image, geometries of multicamera systems are reported.

Figure 24: Multiple cameras system geometries [Ref. (4), (8)]

3.1.2 Airborne Pushbroom Line Scanners

There are two main groups of airborne pushbroom line scanners:

 Simple monochrome scanners equipped with a single CCD linear array

producing a continuous strip image of the terrain and mainly used for military

reconnaissance; simple colour scanners utilize a tri-linear CCDs which are

3xN arrays, in which different filter are reported for each line (R, G and B);

 Three-line scanners that generate overlapping forward-pointing, nadir-

pointing and backward-pointing strip images that allow the production of

three-dimensional stereo models, DEMs and ortho-images for mapping

purposes.

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VIA Technologies EPIA SN-Series Specifications Page 35