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| = Spacecraft Zenith Variations = | = Spacecraft Azimuth Variations = |
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| '''Objective for Test 11 S, T & U, Spacecraft Zenith Variations''' * To investigate the effect of varying the combination of spacecraft zenith (emission angle) contained in the image suite; |
'''Objective for Tests 11 F, G, H, I & J, Spacecraft Azimuth Variations''' * To investigate the effect of varying the combination of spacecraft azimuths with respect to a landmark contained in the image suite; |
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| '''Truth map:''' REGION.MAP | '''Entire Truth map:''' REGION.MAP |
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| ||Evaluation Map||1cm||-||200||4m||REGION.MAP, p/l 996, 1005|| | ||Portion Truth Map (011TRU.MAP)||1cm||-||200||4m||REGION.MAP, p/l 996, 1005|| |
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'''Tiling seed files:''' [[Test Over11FGHIJ t11-10.seed|t11-10.seed]] , [[Test Over11FGHIJ t11-05.seed|t11-05.seed]] '''Iteration seed file :''' [[Test Over11FGHIJ Piterate2StSh-withoutayy.seed|Piteate2StSh-woAYY]] '''Data''' * Data was generated by Eric. * Image resolutions: 2cm/pixel. '''Viewing Conditions''' || Name || Sun || S/C Az || S/C Zenith || Total Number of Images || || Test11F || 45, 0, -45 || every 20 || 45 || 72 || || Test11G || 45, 0, -45 || every 30 || 45 || 48 || || Test11H || 45, 0, -45 || every 45 || 45 || 32 || || Test11I || 45, 0, -45 || every 60 || 45 || 24 || || Test11J || 45, 0, -45 || every 90 || 45 || 16 || '''Test 11F Viewing Conditions''' {{attachment:sc_plotF.png||width="600"}} {{attachment:sun_plotF.png||width="600"}} '''Test 11G Viewing Conditions''' {{attachment:sc_plotG.png||width="600"}} {{attachment:sun_plotG.png||width="600"}} '''Test 11H Viewing Conditions''' {{attachment:sc_plotH.png||width="600"}} {{attachment:sun_plotH.png||width="600"}} '''Test 11I Viewing Conditions''' {{attachment:sc_plotI.png||width="600"}} {{attachment:sun_plotI.png||width="600"}} '''Test 11J Viewing Conditions''' {{attachment:sc_plotJ.png||width="600"}} {{attachment:sun_plotJ.png||width="600"}} == Results ( All with overlaps) == [[Test Over11FGHIJ Comparative Results]] [[Test Over11F Results]] [[Test Over11G Results]] [[Test Over11H Results]] [[Test Over11I Results]] [[Test Over11J Results]] IMPORTANT Note: The heat maps are made from CompMapVec where optimal translation and rotation is not used. == Conclusion == Observing the heat maps show a clear tilt that is present since one side of the Effort's bigamp topography is always lower than the Truth's after the tiling step. Then, as iterations occur, SPC starts to bring the entire topography up to account for this tilt, but SPC overshoots the Truth leaving most of the Effort's topography now greater than the Truth. The heat maps also indicate the iterations where the Effort's topography best matches the Truth; which are 10 ,20, 20, 30, and 30 for Tests F, G, H, J , and I respectfully. This completely agrees with Figure 1 in the Test Over11FGHIJ Comparative Results Section. |
Spacecraft Azimuth Variations
Aim and Objectives
Purpose of Test 11: To evaluate SPC's ability to represent a simplified 'boulder' which has a constant 20 degree slope.
Objective for Tests 11 F, G, H, I & J, Spacecraft Azimuth Variations
- To investigate the effect of varying the combination of spacecraft azimuths with respect to a landmark contained in the image suite;
- To investigate the effect of the number of images and viewing conditions.
Methodology
The 'boulder' was simulated by generating a simple axi-symmetric, flat-topped cone (peak) with a constant 20 degree slope. Multiple peaks and (simplified) craters are randomly placed in an otherwise flat landscape of width approx. 22.5m.
Entire Truth map: REGION.MAP
Bigmaps
The following TAG1 bigmaps were tiled/iterated and evaluated:
Starting topography defined from: START1.MAP at pixel/line location 49, 49 (= REGION.MAP at p/l 1125, 1125).
Step |
GSD |
Overlap Ratio |
Q Size |
Width |
Center |
START.MAP |
20cm |
- |
49 |
20m |
REGION.MAP p/l 1125, 1125 (center) |
10cm-Tiling |
10cm |
1.3 |
130 |
20m |
START1.MAP, p/l 49, 49 |
5cm-Tiling |
5cm |
1.3 |
250 |
20m |
START1.MAP, p/l 49, 49 |
5cm-Iterations |
5cm |
- |
- |
20m |
START1.MAP, p/l 49, 49 |
Portion Truth Map (011TRU.MAP) |
1cm |
- |
200 |
4m |
REGION.MAP, p/l 996, 1005 |
Tiling/Iteration Parameters
Auto-Elimination Parameters: |
0, 60, .25, .25, 0, 3 |
Reset albedo/slopes |
NO |
Determine Central Vector |
YES |
Differential Stereo |
YES |
Shadows |
YES |
Tiling seed files: t11-10.seed , t11-05.seed
Iteration seed file : Piteate2StSh-woAYY
Data
- Data was generated by Eric.
- Image resolutions: 2cm/pixel.
Viewing Conditions
Name |
Sun |
S/C Az |
S/C Zenith |
Total Number of Images |
Test11F |
45, 0, -45 |
every 20 |
45 |
72 |
Test11G |
45, 0, -45 |
every 30 |
45 |
48 |
Test11H |
45, 0, -45 |
every 45 |
45 |
32 |
Test11I |
45, 0, -45 |
every 60 |
45 |
24 |
Test11J |
45, 0, -45 |
every 90 |
45 |
16 |
Test 11F Viewing Conditions
Test 11G Viewing Conditions
Test 11H Viewing Conditions
Test 11I Viewing Conditions
Test 11J Viewing Conditions
Results ( All with overlaps)
Test Over11FGHIJ Comparative Results
IMPORTANT Note: The heat maps are made from CompMapVec where optimal translation and rotation is not used.
Conclusion
Observing the heat maps show a clear tilt that is present since one side of the Effort's bigamp topography is always lower than the Truth's after the tiling step. Then, as iterations occur, SPC starts to bring the entire topography up to account for this tilt, but SPC overshoots the Truth leaving most of the Effort's topography now greater than the Truth. The heat maps also indicate the iterations where the Effort's topography best matches the Truth; which are 10 ,20, 20, 30, and 30 for Tests F, G, H, J , and I respectfully. This completely agrees with Figure 1 in the Test Over11FGHIJ Comparative Results Section.