Differences between revisions 3 and 13 (spanning 10 versions)

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

Conclusion

Spacecraft Azimuth Variations (last edited 2015-12-07 12:03:41 by KristoferDrozd)

-  ⇤ ← Revision 3 as of 2015-12-01 16:05:36 → 
  Size: 2439
  Editor: KristoferDrozd
  Comment:
+   ← Revision 13 as of 2015-12-04 18:18:47 → ⇥
  Size: 3105
  Editor: KristoferDrozd
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 7:
-'''Objective for Test 11 F, G, H, I & J, Spacecraft Azimuth Variations'''
+'''Objective for Tests 11 F, G, H, I & J, Spacecraft Azimuth Variations'''
 Line 39:
-[[Test Over11STU t11-10.seed|t11-10.seed]] ,
[[Test Over11STU t11-05.seed|t11-05.seed]]
+[[Test Over11FGHIJ t11-10.seed|t11-10.seed]] ,
[[Test Over11FGHIJ t11-05.seed|t11-05.seed]]
 Line 43:
-[[Test Over11STU Piterate2StSh-withoutayy.seed|Piteate2StSh-woAYY]]
+[[Test Over11FGHIJ Piterate2StSh-withoutayy.seed|Piteate2StSh-woAYY]]
 Line 46:
- * Data was generated by ??.
+ * Data was generated by Eric.
 Line 50:
-|| Name || Sun || S/C Az || S/C Zenith || Total Number of Images ||
|| Test11S || 45, 0, -45 || every 45 || 0, 30, 60 || 80 ||
|| Test11T || 45, 0, -45 || every 45 || 0, 20, 40, 60 || 112 ||
|| Test11U || 45, 0, -45 || every 45 || 0, 15, 30, 45, 60 || 144 ||
+|| 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 ||
-Line 55:
+Line 57:
-Note that a larger image suite was planned and produced than was utilized during test. The images for a number of planned viewing conditions were eliminated due to image quality related to the viewing conditions being unfit for SPC. For further details are contained here:
+'''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]]

== Conclusion ==