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As of 7/31, all interim imagery is available in the WMS Service: “DRCOG 2012 DRAPP – In Progress”
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DRAPP 2012
Calendar OverviewMilestone DateCompiling Orders for Final Imagery August/September 2012
DAT Review September/October 2012
Final Imagery in WMS November/December 2012
Delivery of Final, DAT-approved Ortho-imagery Tiles
December 2012
Full Set Available Now!
As of 7/31, all interimimagery is available
in the WMS
Service: “DRCOG 2012 DRAPP – In Progress”
Area 1 Status Status:
Interim Delivered on 4/24; Loaded to WMS on 5/1
Pilots (3) Aurora – Delivered on 7/3; loaded to WMS on 7/6; resubmitted 8/14 Golden – Delivered on 7/9; loaded to WMS on7/12 Centennial – Delivered on 7/9; loaded to WMS on 7/12
Final Imagery – Waiting on DEM update completion and pilot approvals. Expected delivery 10/31
Area 1 Issues & Fixes Building lean –
Most cases identified can be corrected.
Road and Building distortion – Most cases identified can be corrected
through DEM refinement.
Dark Shadows – Some adjustment to reduce contrast and
lighten shadows may be possible.
Color Anomalies (Blue tint/saturated rooftops)– Can and will be addressed
Blurring - Small areas observable under higher magnification - this we believe was
due to turbulence at the time of the flyover and may not be able to readily fix.
Area 2 Status Status:
Interim Delivered on 4/12; Loaded to WMS on 4/17
Pilot Delivered on 5/15 and again on 6/6 after adjustments Pilot approved on 6/7
Final Imagery Delivered on 6/20 Reviewed on 7/9 Waiting on Kucera to resubmit – Expected 8/31 Expected in the WMS by October
Area 2 Final Ortho Review From IntraSearch
Overall the data looks good. The color and density is consistent throughout the area. The color and density matches the pilot area.
There were only a few errors found. 7 tiles (0.5%) had some blurry areas on them. 1 tile (0.07%) marked with a distorted bridge. 11 tiles (0.8%) marked with minor cloud shadows on them.
GCPs Evaluation 9 of our ground control points fall on the Eastern Plains 1 foot data. 3 of the points were less than .6 feet off and the other 6 GCPs were on. 4 of Kucera’s ground control points were identifable on the imagery. 1 point
was 1.3 feet off, 1 was 2.6 feet off and the other 2 were on.
Overall the data meets the project specifications.
Area 3 Status Status:
Interim Delivered on 7/23; loaded to WMS on 7/25
Pilot Delivered on 8/3; loaded to WMS on 8/13 Reviewed by IntraSearch on 8/13 Waiting on Kucera to resubmit
Final Imagery Not started. Waiting on pilot approval. Expected delivery on 10/31
Area 3 Issues
Review of the Mountain Pilot Overall the data looks good. The color, contrast and density looks good and is consistent overall. Building distortions on 4 tiles.
Review of the Mountain Interim Overall color and density looks OK and is consistent. This is an interim product with a generic DEM so we found some errors. 32 tiles (1.8%)with double images. 7 tiles (0.4%) marked with DEM errors. 5 tiles (0.3%)had cloud shadows on them. 43 tiles (2.4%) with seam lines. 2 tiles (0.1%) marked as color anomaly, their color didn’t match the rest of
the tiles. 2 tiles (0.1%) had a blurry area on them. 7 tiles (0.4%) with black null areas on them, these could be gaps in the
flight line coverage. 1 tile (0.1%) was marked with a building distortion.
Area 4 Status Status:
Interim Delivered on 5/1; loaded to WMS on 5/15
Pilot Delivered on 6/29; loaded to WMS on 7/6 Resubmitted on 8/8
Final Imagery Not started. Waiting on pilot approval (expected 8/15) Expected delivery on 9/30
Area 4 Issues Review of Weld County Interim
Slightly flat and heavy, but the final density and contrast will be determined with the pilot areas.
Some cloud shadows GCPs
IntraSearch had 11 GCPs on this set, 1 was 3 feet off and the rest were all less than 2 feet off. Kucera had 5 GCPs that fell on the data that were all between 2 feet and 3 feet off.
Review of Weld County Pilot Overall the contrast and density looks good. The color is starting to shift to yellow
in the Northwest quarter and would caution on letting the imagery go to yellow as the rest of the area is processed.
There are density mismatches between 2 sets of tiles that are marked with the seam line shape file.
6 buildings that had some distortion to them from DEM errors, one was a cutline error.
There are cloud shadows on the eastern side of the pilot area and I marked 2 areas where the shadow diminishes the clarity of the image.
1 foot bridge with distortion
Notes on QAQC We did not ask for “true orthos” so much of the
building lean that’s been identified is actually within spec.
Local color/contrast preferences are noted but will only be addressed if adjustment blends with the region as a whole.
Blurriness may not be fixable in all cases. This was caused by heat and turbulence during the flight – conditions that could not be controlled.
Notes on Ordering Contact Ashley via phone or email to
choose (see next slides for options): Format Projection Resolution Extent
Note that the deliveries are in PLSS tiles, not mosaics.
Note that the final imagery is 4-band only.
Orders Resolution Options
6-inch in Area 1 and 4 1-foot in Areas 1, 2, 3, 4
(we can resample up if you prefer)
Format Options Compressed GeoTIFF Uncompressed GeoTIFF JPEG2000 Mr. SID
Orders Projection Options
State Plane Colorado Central, NAD 83 (US Survey Feet) State Plane Colorado North, NAD 83 (US Survey Feet) State Plane Colorado Central, HARN (US Survey Feet) State Plane Colorado North, HARN (US Survey Feet) UTM Zone 13 North, NAD 83 (Meters)
Extent Send an AOI Delivery will be in PLSS tiles (shapefile on website)
