For the test data set 1 – Sainte-Maxime – reference data have been provided by IGN - DRE
Nicolas Paparoditis
Directeur Scientifique
Data set 1: Sainte-Maxime
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| Figure 1. The illustration of ZY-3 images covering Sainte-Maxime of France,
on GoogleEarth.
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The ground control points as well a reference height model of an aerial image block have been made available together with image sketches in French Lambert 93 coordinate system. The data sets have been transformed to UTM coordinates by ISPRS WG I/4. To simplify the handling of the benchmark test, the scene pixel coordinates are provided together with ground coordinates of the ground control points (GCP) below. With 12 GCP the sigma0 of the single scene orientation based on bias corrected RPC-solution is in the range of 1.6m up to 2.6m RMS. This corresponds to the accuracy of the control point definition in the images.
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| Location of GCP in the nadir scene (navp) |
Ground control point coordinates (UTM, WGS ellipsoid, height related to geoid) :
406038 32332668.498 4816628.783 50.620
483006 32332460.841 4816123.659 107.130
483018 32300665.265 4794192.126 59.870
483025 32311211.168 4792607.508 52.110
483043 32280703.704 4799367.120 232.210
483046 32285974.773 4785157.789 154.860
483052 32277446.301 4783382.588 127.430
9154008 32282968.619 4820287.098 283.500
9154009 32292199.291 4815077.513 256.450
9154010 32291536.272 4802850.345 129.640
9154011 32301514.389 4804823.826 257.090
9154012 32299622.476 4822102.637 302.320
9154014 32314131.053 4826074.590 360.990
| |
bavp |
navp |
favp |
| Point name |
column |
line |
column |
line |
column |
line |
| 406038 | 15217.000 | 1764.667 | 23696.333 | 1773.667 | 15665.000 | 1768.000 |
| 483006 | 15195.000 | 1911.667 | 23662.000 | 2034.667 | 15644.000 | 1929.333 |
| 483018 | 7390.000 | 10179.667 | 11552.333 | 16056.000 | 7817.000 | 10204.333 |
| 483025 | 10663.333 | 9852.000 | 16631.000 | 15507.333 | 11099.333 | 9886.000 |
| 483043 | 1020.667 | 10196.333 | 1673.000 | 16085.000 | 1429.667 | 10225.333 |
| 483046 | 3699.000 | 13691.667 | 5825.333 | 22026.667 | 4114.667 | 13739.333 |
| 483052 | 1287.000 | 14798.000 | 2082.667 | 23887.667 | 1696.333 | 14828.667 |
| 9154008 | 78.000 | 4327.333 | 209.333 | 6116.333 | 483.000 | 4331.667 |
| 9154009 | 3240.000 | 5078.333 | 5115.000 | 7407.333 | 3655.000 | 5103.667 |
| 9154010 | 3989.333 | 8474.000 | 6278.333 | 13154.333 | 4406.000 | 8488.667 |
| 9154011 | 6819.333 | 7199.333 | 10668.333 | 11027.667 | 7244.000 | 7254.667 |
| 9154012 | 4915.333 | 2621.667 | 7715.667 | 3251.000 | 5334.667 | 2656.667 |
| Pixel positions of control points in the three images |
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| Reference DSM based on French DSM from very high resolution aerial images – reduced from 0.4m to 10m point spacing and transformed from Lambert to UTM coordinate system – the height values in the sea are not realistic, but the shoreline can be identified |
Available with 10m point spacing as: DSMreferenceUTM32.tif 32 bit, 176 Mb
UTM zone 32 points without height values have height -9999
On request as: utmall10.asc as ASCII-file with 1.2 Gb
tfw-file:
10.000000
0.000000
0.000000
-10.000000
265625.000000
4835765.000000
Questions about reference data to: jacobsen@ipi.uni-hannover.de