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| = Test F3F3 - Analysis = | = Test F3F3: Clark and Tikir Photometric Function - Analysis = Since the Clark and Tikir photometric function behaved so differently to the Lommel-Seeliger photometric function during testing, the sub-test results are analyzed here in detail. The F3F3 sub-test digital terrain model (Clark and Tikir photometric function) suffered from pervasive degradation with every processing step performed, eventually failing to build topography for a subset of landmarks at the 5cm tiling step. This failure is illustrated by the 5cm Landmark Test, reported below. == 5cm Landmark Test == '''Background:''' A subset of new landmarks (28 of 225) created during the 5cm tile failed to achieve minimum image correlations across the images. At 5cm each landmarks contains approximately 12 Detailed Survey PolyCam images. At this scale elimination of low correlating images is not allowed, instead low-correlating images must be aligned by hand. On investigation it was found that the lithos template degraded rapidly with iteration leading to rapid loss of image correlation scores. This behavior was found to be pervasive across landmarks of all latitudes within the TAG site region, all available viewing conditions and all ground sample distances (GSDs) including the start model landmarks at 35cm, 75cm, and 150cm GSD. The behavior is illustrated from the performance of this additional test. '''Methodology:''' * Working directories were created for the full suite of photometric function tests (F3F1, F3F2, and F3F3). * The working directories were synced with the 10cm pre-geometry back-up for each sub-test. * The geometry processing step was performed for each subtest and each subtest model achieved the Residualed Processing Step. * A 5cm tiling bigmap was generated as per standard F3F processing. * Using LITHOS (with the appropriate photometric function) a 5cm landmark was created at the center of Tag Site #1 (centered on -8.027, 262.768, lat, wlong, q-size of 49). * The standard 5cm tiling lithos commands were followed to add images, turn on extract filter, get heights from tiling bigmap, find normal from heights, find Z from V and pointing, and auto-eliminate images. * An auto-image-alignment was performed and the start correlation scores recorded. * Using all images, a template build was conducted using 50 iterations and the output landmark display was recorded. * The last two steps were performed iteratively until 1000 template building iterations had been performed. |
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| '''LITHOS Image Correlation Score During Template Building:''' | '''LITHOS Image Correlation Score During Template Building:'''<<BR>> |
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| ||'''Picture Name'''||'''Start (0 Iterations)'''||'''50 Iterations'''||'''100 Iterations'''||'''250 Iterations'''||'''500 Iterations'''||'''750 Iterations'''||'''1000 Iterations'''|| | ||'''Picture Name'''||'''Start (0 Iterations)'''||'''50 Iterations'''||'''100 Iterations'''||'''250 Iterations'''||'''500 Iterations'''||'''800 Iterations'''||'''1000 Iterations'''|| ||P601293196H2||0.839||0.896||0.928||0.959||0.963||0.962||0.962|| ||P601293751H3||0.871||0.916||0.940||0.962||0.966||0.966||0.965|| ||P601293757H3||0.871||0.918||0.942||0.964||0.968||0.967||0.967|| ||P601372298H3||0.903||0.943||0.956||0.963||0.963||0.962||0.962|| ||P601372304H3||0.902||0.943||0.958||0.965||0.965||0.965||0.964|| ||P601372310H3||0.901||0.942||0.956||0.965||0.965||0.964||0.964|| ||P601372316H3||0.902||0.943||0.957||0.965||0.965||0.965||0.964|| ||P601372856H2||0.875||0.932||0.954||0.967||0.966||0.964||0.964|| ||P601372862H2||0.874||0.931||0.954||0.967||0.966||0.965||0.964|| ||P601372868H2||0.874||0.931||0.953||0.967||0.966||0.965||0.964|| ||P601372874H2||0.874||0.931||0.953||0.967||0.966||0.964||0.964|| '''F3F3 - Clark and Tikir Photometric Function:''' ||'''Picture Name'''||'''Start (0 Iterations)'''||'''50 Iterations'''||'''100 Iterations'''||'''250 Iterations'''||'''500 Iterations'''||'''800 Iterations'''||'''1000 Iterations'''|| ||P601293196H2||0.627||0.607||0.573||0.483||0.473||0.476||0.476|| ||P601293751H3||0.696||0.656||0.601||0.460||0.000||0.000||0.000|| ||P601293757H3||0.699||0.658||0.603||0.461||0.000||0.000||0.000|| ||P601372298H3||0.772||0.727||0.662||0.478||0.403||0.409||0.409|| ||P601372304H3||0.769||0.723||0.659||0.474||0.412||0.396||0.395|| ||P601372310H3||0.768||0.721||0.656||0.471||0.409||0.393||0.393|| ||P601372316H3||0.769||0.723||0.658||0.474||0.399||0.407||0.407|| ||P601372856H2||0.708||0.676||0.626||0.477||0.436||0.000||0.000|| ||P601372862H2||0.708||0.675||0.624||0.477||0.433||0.000||0.000|| ||P601372868H2||0.708||0.675||0.624||0.478||0.436||0.000||0.000|| ||P601372874H2||0.709||0.675||0.625||0.478||0.436||0.000||0.000|| |
| Line 10: | Line 53: |
'''Start:'''<<BR>> |
'''Start (F3F1 left, F3F3 right):'''<<BR>> |
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| '''Template Building: 50 Iterations:'''<<BR>> | '''Template Building: 50 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 19: | Line 61: |
| '''Template Building: 100 Iterations:'''<<BR>> | '''Template Building: 100 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 23: | Line 65: |
| '''Template Building: 150 Iterations:'''<<BR>> | '''Template Building: 150 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 27: | Line 69: |
| '''Template Building: 200 Iterations:'''<<BR>> | '''Template Building: 200 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 31: | Line 73: |
| '''Template Building: 250 Iterations:'''<<BR>> | '''Template Building: 250 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 35: | Line 77: |
| '''Template Building: 300 Iterations:'''<<BR>> | '''Template Building: 300 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 39: | Line 81: |
| '''Template Building: 350 Iterations:'''<<BR>> | '''Template Building: 350 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 43: | Line 85: |
| '''Template Building: 400 Iterations:'''<<BR>> | '''Template Building: 400 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 47: | Line 89: |
| '''Template Building: 450 Iterations:'''<<BR>> | '''Template Building: 450 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 51: | Line 93: |
| '''Template Building: 500 Iterations:'''<<BR>> | '''Template Building: 500 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 55: | Line 97: |
| '''Template Building: 600 Iterations:'''<<BR>> | '''Template Building: 600 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 59: | Line 101: |
| '''Template Building: 700 Iterations:'''<<BR>> | '''Template Building: 700 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 63: | Line 105: |
| '''Template Building: 800 Iterations:'''<<BR>> | '''Template Building: 800 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 67: | Line 109: |
| '''Template Building: 900 Iterations:'''<<BR>> | '''Template Building: 900 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
| Line 71: | Line 113: |
| '''Template Building: 1000 Iterations:'''<<BR>> | '''Template Building: 1000 Iterations (F3F1 left, F3F3 right):'''<<BR>> |
Test F3F3: Clark and Tikir Photometric Function - Analysis
Since the Clark and Tikir photometric function behaved so differently to the Lommel-Seeliger photometric function during testing, the sub-test results are analyzed here in detail. The F3F3 sub-test digital terrain model (Clark and Tikir photometric function) suffered from pervasive degradation with every processing step performed, eventually failing to build topography for a subset of landmarks at the 5cm tiling step. This failure is illustrated by the 5cm Landmark Test, reported below.
5cm Landmark Test
Background: A subset of new landmarks (28 of 225) created during the 5cm tile failed to achieve minimum image correlations across the images. At 5cm each landmarks contains approximately 12 Detailed Survey PolyCam images. At this scale elimination of low correlating images is not allowed, instead low-correlating images must be aligned by hand. On investigation it was found that the lithos template degraded rapidly with iteration leading to rapid loss of image correlation scores. This behavior was found to be pervasive across landmarks of all latitudes within the TAG site region, all available viewing conditions and all ground sample distances (GSDs) including the start model landmarks at 35cm, 75cm, and 150cm GSD. The behavior is illustrated from the performance of this additional test.
Methodology:
Working directories were created for the full suite of photometric function tests (F3F1, F3F2, and F3F3).
- The working directories were synced with the 10cm pre-geometry back-up for each sub-test.
- The geometry processing step was performed for each subtest and each subtest model achieved the Residualed Processing Step.
- A 5cm tiling bigmap was generated as per standard F3F processing.
- Using LITHOS (with the appropriate photometric function) a 5cm landmark was created at the center of Tag Site #1 (centered on -8.027, 262.768, lat, wlong, q-size of 49).
- The standard 5cm tiling lithos commands were followed to add images, turn on extract filter, get heights from tiling bigmap, find normal from heights, find Z from V and pointing, and auto-eliminate images.
- An auto-image-alignment was performed and the start correlation scores recorded.
- Using all images, a template build was conducted using 50 iterations and the output landmark display was recorded.
- The last two steps were performed iteratively until 1000 template building iterations had been performed.
LITHOS Image Correlation Score During Template Building:
F3F1 - Lommel-Seeliger Photometric Function:
Picture Name |
Start (0 Iterations) |
50 Iterations |
100 Iterations |
250 Iterations |
500 Iterations |
800 Iterations |
1000 Iterations |
0.839 |
0.896 |
0.928 |
0.959 |
0.963 |
0.962 |
0.962 |
|
0.871 |
0.916 |
0.940 |
0.962 |
0.966 |
0.966 |
0.965 |
|
0.871 |
0.918 |
0.942 |
0.964 |
0.968 |
0.967 |
0.967 |
|
0.903 |
0.943 |
0.956 |
0.963 |
0.963 |
0.962 |
0.962 |
|
0.902 |
0.943 |
0.958 |
0.965 |
0.965 |
0.965 |
0.964 |
|
0.901 |
0.942 |
0.956 |
0.965 |
0.965 |
0.964 |
0.964 |
|
0.902 |
0.943 |
0.957 |
0.965 |
0.965 |
0.965 |
0.964 |
|
0.875 |
0.932 |
0.954 |
0.967 |
0.966 |
0.964 |
0.964 |
|
0.874 |
0.931 |
0.954 |
0.967 |
0.966 |
0.965 |
0.964 |
|
0.874 |
0.931 |
0.953 |
0.967 |
0.966 |
0.965 |
0.964 |
|
0.874 |
0.931 |
0.953 |
0.967 |
0.966 |
0.964 |
0.964 |
F3F3 - Clark and Tikir Photometric Function:
Picture Name |
Start (0 Iterations) |
50 Iterations |
100 Iterations |
250 Iterations |
500 Iterations |
800 Iterations |
1000 Iterations |
0.627 |
0.607 |
0.573 |
0.483 |
0.473 |
0.476 |
0.476 |
|
0.696 |
0.656 |
0.601 |
0.460 |
0.000 |
0.000 |
0.000 |
|
0.699 |
0.658 |
0.603 |
0.461 |
0.000 |
0.000 |
0.000 |
|
0.772 |
0.727 |
0.662 |
0.478 |
0.403 |
0.409 |
0.409 |
|
0.769 |
0.723 |
0.659 |
0.474 |
0.412 |
0.396 |
0.395 |
|
0.768 |
0.721 |
0.656 |
0.471 |
0.409 |
0.393 |
0.393 |
|
0.769 |
0.723 |
0.658 |
0.474 |
0.399 |
0.407 |
0.407 |
|
0.708 |
0.676 |
0.626 |
0.477 |
0.436 |
0.000 |
0.000 |
|
0.708 |
0.675 |
0.624 |
0.477 |
0.433 |
0.000 |
0.000 |
|
0.708 |
0.675 |
0.624 |
0.478 |
0.436 |
0.000 |
0.000 |
|
0.709 |
0.675 |
0.625 |
0.478 |
0.436 |
0.000 |
0.000 |
Start (F3F1 left, F3F3 right):
Template Building: 50 Iterations (F3F1 left, F3F3 right):
Template Building: 100 Iterations (F3F1 left, F3F3 right):
Template Building: 150 Iterations (F3F1 left, F3F3 right):
Template Building: 200 Iterations (F3F1 left, F3F3 right):
Template Building: 250 Iterations (F3F1 left, F3F3 right):
Template Building: 300 Iterations (F3F1 left, F3F3 right):
Template Building: 350 Iterations (F3F1 left, F3F3 right):
Template Building: 400 Iterations (F3F1 left, F3F3 right):
Template Building: 450 Iterations (F3F1 left, F3F3 right):
Template Building: 500 Iterations (F3F1 left, F3F3 right):
Template Building: 600 Iterations (F3F1 left, F3F3 right):
Template Building: 700 Iterations (F3F1 left, F3F3 right):
Template Building: 800 Iterations (F3F1 left, F3F3 right):
