welcome and introductions calendar overview acquisition status final product specs final ortho...
TRANSCRIPT
DRAPP 2012
Agenda•Welcome and Introductions•Calendar Overview•Acquisition Status•Final Product Specs•Final Ortho Status – with Kucera•DAT Process – with IntraSearch•Feedback on WMS•Ordering Procedures and Options•Q & A
Calendar OverviewMilestone DatePhoto Acquisition of Mountains June 2012
Delivery of Interim Product for Areas 1, 2, and 4 to DAT and WMS
June 2012
Delivery of Interim Product for Area 3 to DAT and WMS
August 2012
Compiling Orders for Final Imagery July/August 2012
DAT Review September/October 2012
Delivery of Final, DAT-approved Ortho-imagery
December 2012
Acquisition StatusArea 3
Potential Issues – Smoke from the High
Park Fire Airspace restrictions
due to firefighting
6/19 – 40% completed
6/21 - 80% completed
6/22 - 90% completed
6/23 – 100% completed
http://www.firedetect.noaa.gov/viewer.htm
NOAA Smoke Map 6/13/2012
Final Product Specs 4 Band
Areas 1 and 4 6in resolution ASPRS Class 1 Map Accuracy Standards for 1”=100’ RMSE < 1ft on the ground
Areas 2 and 3 1 ft resolution ASPRS Class 2 Map Accuracy Standards for 1’= 400’ RMSE < 4ft on the ground
Final Ortho Status Final orthorectified imagery for Eastern Plains (Area 2)
has been delivered to IntraSearch (6/21) for Data Acceptance Testing.
Pilot images for Denver (Area 1) and Weld County (Area 4) are expected first of July.
DEM is 65% updated for Area 1
DEM is 35% updated for Area 4
More from John @ Kucera…
Area 3 Aerial Flyover/Acquisition Status
Completed on 6/23 No apparent issue with smoke from fires to
the North and South. Smoke drifting away from Area 3 on flying days
Record heat did present turbulence issues over mountains and reduced aircraft performance – flying generally confined to morning hours
Imagery currently being reviewed
Georeferencing & DEM Status
Interim orthophotographyArea 1, 4 (6” resolution) within 2’Area 2 (12” resolution) within 3’
Area 2 (Eastern Plains) Source DEM – supports final accuracy (within 4’)
Area 4 (Weld County) DEM – generally not supporting Class 1 (1’) ortho accuracy – regenerated
Area 1 (Denver Metro) DEM – marginally supported Class 1/1’ ortho accuracy – opted to regenerate
Area 3 (Mountains) Source DEM – incomplete coverage – will be regenerated
Aerotriangulation Accuracy* Area 1, 4 – horizontally within 0.5’* Area 2 – vertical – generally within 1’ Area 1 and 4 and within 2’ Area 2* Some areas need vertical refinement
Final Orthophoto Production Status
Area 2 Eastern Plains – final orthos recently submitted – no major rectification issues
Areas 1 & 4 – Denver Metro & Weld County – pilot orthos to be posted this week
Area 1 & 4 final ortho progress delivery starting late Summer – early Fall
Area 3 – MountainsInterim orthos – by July 15
Pilot – July 30Final orthos – starting late Summer – earlyFall
Kucera Q&A
Printed Samples
IntraSearch brought printed samples for you to view.
DAT Process A comprehensive review of every tile of the 2012 DRAPP imagery
The DAT process will verify the positional accuracy of the imagery and ensure its aesthetic and functional quality. In general terms, the DAT review will examine all the imagery for the following types of errors: Images that do not meet the project’s accuracy specifications
RMSE of 4ft on 1 ft ortho, 1ft on 6in ortho Misalignments in linear features (roads, curbs, building edges, etc.) Warped or wavy bridges/overpasses/viaducts/railroad lines/warehouses etc. Obvious seams between images Blurred or out-of-focus imagery, blemishes, “noise”, smears Pronounced changes in color balance and contrast Dark shadows or bright/washed-out spots in the imagery Buildings that obscure more than 25 percent of adjacent roadways and other
transportation features Obscured valley bottoms in the mountain areas
Control Network
IntraSearch37 Panels29 Photo
Kucera30 Panels26 Photo
IntraSearch Q&A
WMS Stats
Feedback on WMS Comments?
Concerns/Issues?
Features/Requirements: Anything to add? Anything to remove? Anything to improve?
Upcoming Services Service with final ortho imagery will be released in July. Eastern Plains will be the first to be loaded. Metadata will be included.
Orders Time to start compiling custom orders
for raw imagery tiles. Member governments can request the
entire dataset. Need to choose resolution, format, and extent. Specify projection
Business partners already specified an extent, resolution and format.
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)
Stay tuned for an email regarding how to order!
Questions?
