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PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 11
Phoenix Landing Site Topomapping UpdatePhoenix Landing Site
Topomapping UpdateRandolph Kirk, USGS
5th Phoenix Landing Site Workshop
23 January 2007
Randolph Kirk, USGS5th Phoenix Landing Site
Workshop23 January 2007
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 22
OutlineOutlineThe Old PlanHiRISE Stereo Mapping: First ResultsAvailable DataThe New Plan
The Old PlanHiRISE Stereo Mapping: First ResultsAvailable DataThe New Plan
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 33
The Old PlanThe Old PlanMapping results
Latitude zone fairly homogeneousBenign at MOC resoluton and larger
Site selection—and imaging strategyDown-selected to Region B, 3 boxes therein
USGS CDP deliverables6 MOC DTMs by 1/074 partial HiRISE DTMs (best effort 1/07)3 full HiRISE DTMs by 6/07
Mapping resultsLatitude zone fairly homogeneousBenign at MOC resoluton and larger
Site selection—and imaging strategyDown-selected to Region B, 3 boxes therein
USGS CDP deliverables6 MOC DTMs by 1/074 partial HiRISE DTMs (best effort 1/07)3 full HiRISE DTMs by 6/07
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 44
HiRISE Images of Region BHiRISE Images of Region B
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 55
HiRISE Stereo MethodologyHiRISE Stereo MethodologyWhat’s the same as for MOC, HRSC?
Ingest in ISIS, stereomap in SOCET SETWhat’s new?
ISIS 3 not ISIS 2Geometric characteristics
Multiple offset & rotated detectorsDetectors offset from center of distortionJitter potentially greater (in pixels)
Pre-correct images for these effects by resampling with ISIS program noproj
What’s the same as for MOC, HRSC?Ingest in ISIS, stereomap in SOCET SET
What’s new?ISIS 3 not ISIS 2Geometric characteristics
Multiple offset & rotated detectorsDetectors offset from center of distortionJitter potentially greater (in pixels)
Pre-correct images for these effects by resampling with ISIS program noproj
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 66
1st Stereopair Mapped: Victoria1st Stereopair Mapped: Victoria
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 77
MOC, HiRISE DTMs ComparedMOC, HiRISE DTMs ComparedContour Interval 3 m
MOC: 5 m/postManually edited
HiRISE: 1 m/post Auto-matching, limited editing
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 88
HiRISE DTM EnlargedHiRISE DTM Enlarged
100 m
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 99
Perspective ViewsPerspective ViewsRelief shadingNo exaggeration
Absolute slopes0°–60°
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 1010
First ReactionsFirst ReactionsHiRISE stereopairs support production of 1 m/post DTMs by automatic matching w/ minimal editingDTM “noise” of 0.2–0.3 m indicates 0.2–0.3 pixel RMS matching error (as for most other datasets)Cross-track jitter induces ~1 m height errors; along-track jitter does not prevent matchingDTM is not visibly “warped” by optical distortionMatching succeeds even in bland areas (using DoG filter) but not in bland steep areasMatching succeeds in deep shadows, but moving shadow edges cause mismatchesMost other terrains will be easier to map
HiRISE stereopairs support production of 1 m/post DTMs by automatic matching w/ minimal editingDTM “noise” of 0.2–0.3 m indicates 0.2–0.3 pixel RMS matching error (as for most other datasets)Cross-track jitter induces ~1 m height errors; along-track jitter does not prevent matchingDTM is not visibly “warped” by optical distortionMatching succeeds even in bland areas (using DoG filter) but not in bland steep areasMatching succeeds in deep shadows, but moving shadow edges cause mismatchesMost other terrains will be easier to map
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 1111
HiRISE Stereopairs (to date)HiRISE Stereopairs (to date)
D1D2
A3
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 1212
Image and Stereo Coverage: Regions A+D
Image and Stereo Coverage: Regions A+D
Thanks to Shane Byrne for adjusted MOCfootprints and stereopair identifications
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 1313
Summary of Available DataSummary of Available Data
43HiRISE Stereopairs12661HiRISE Images18628MOC Stereopairs
1558214MOC ImagesIn 65°–72° ZoneIn Boxes A+D
PHX LS WS #5PHX LS WS #5 Kirk-HiRISE TopoKirk-HiRISE Topo 1414
The New PlanThe New PlanFull stereo DTMs from existing HiRISE pairs (“ST”)
A3 pair may be problematic because of clouds)Additional full/partial HiRISE stereo DTMs from any pairs acquired before season endsLook for HiRISE images where photoclinometry can be calibrated against MOLA (“M-PC”) or against rock shadows if possibleMOC ST in A+DMOC M-PC in A+DMOC ST elsewhere in zoneMOC M-PC elsewhere in zoneIf all images are used and customer is satisfiedbefore funding runs out, start HiRISE ST of MSL sites
Full stereo DTMs from existing HiRISE pairs (“ST”)A3 pair may be problematic because of clouds)
Additional full/partial HiRISE stereo DTMs from any pairs acquired before season endsLook for HiRISE images where photoclinometry can be calibrated against MOLA (“M-PC”) or against rock shadows if possibleMOC ST in A+DMOC M-PC in A+DMOC ST elsewhere in zoneMOC M-PC elsewhere in zoneIf all images are used and customer is satisfiedbefore funding runs out, start HiRISE ST of MSL sites