Aerial
images
Normal angle photography in 2004 -
Llight 04403 by NLS
- Wild RC30 film-based camera (Brochure
by Leica-Helava)
- Large-scale 1:8000 on CIR film (Kodak
info on Aerochrome III/ 1443), three strips were flown
- Scanning at 15 microns (µm) => GSD (Ground Sampling
Density) of 8000 × 0.000015 m = 0.12 m
- RGB-images, 8 bits per channel
- 21-cm focal lenght, 23 × 23 cm film => ± 27°
along track FOV, ± 35° diagonal FOV
- 60 % forward and side overlaps => minimum of 4 views per
target
Plot 41 seen in a back-lighted view of flight
04403
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Multispecral Digital photography in 2006 (flight FM06124)
- Vexcel UltraCam D digital frame camera (Datasheet)
- Large-scale 1:10000 on five CCD-arrays, three strips were flown
- Panchromatic CCD-array 11500 × 7500 pixels, 9 µm,
9 cm GSD
- R, G, B, IR CCD-arrays 3680 × 2400 pixels, 28.5 µm,
28 cm GSD
- Multispecral data was pan-sharpened into 9 µm "CIR-images"
(RGB): R = IR, G = R, B = G
- 10.52 cm focal lenght and 10 x 6 cm CCD-arrays => ±
16° along track FOV, ± 26° across track FOV, ±
29° diagonal FOV => normal-angle camera with weak geometry for Z-estimation.
- 60 % forward and 30 % side overlaps => minimum of 2 views
per target
Plot 41 seen in a near nadir Vexcel view (PAN-sharpened
CIR)
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