Test 10: UltraFeatureF2

Purpose of test: To obtain highest possible topographic accuracy and resolution for features such as 2m wide boulders and craters, given perfect camera position and pointing and optimal SPC image suite.

Additional Technique Testing - DTM Evaluation Based on Highest Resolution Maplets Only

In the standard SPC procedure, lower resolution maplets from earlier processing steps are included in evaluation bigmaps. Information from the highest resolution maplets is therefore conditioned with low resolution data. Theoretically, the accuracy of the DTM would increase if the topography was generated using only the highest resolution maplets.

A subtest was conducted on Lockheed Feature 1 to investigate the effect of only included the highest resolution maplets in the evaluation bigmap.

Data

Spacecraft:

SC_perfectF2_POLARS.jpg

Sun:

SUN_perfectF2_POLARS.jpg

Five features have been identified in TAG site 1. For each feature the following bigmaps will be tiled and evaluated:

Test Step

Ground Sample Distance (cm)

Maplet Overlap Factor

Approx. Maplet Overlap

Q Size

Width

2cm-Tiling

2cm

1/1.3

60%

85

2.5m

1cm-Tiling

1cm

1/1.3

60%

160

2.5m

0.5cm-Tiling

0.5cm

1/1.3

60%

315

2.5m

Evaluation

0.5cm

N/A

N/A

200

2m

Lockheed Features -- Oct 2015

Evaluation

Truth Maps:

UltraFeatureF2 (last edited 2016-05-23 16:21:02 by DianeLambert)