USDA – Planning Meeting December 3, 2008 Digital Inspection Process Review Sherry Holyoak Resource Imagery Inspection Section
Vermont Projects Deliverables Original Color Positive Film (cut and sleeved) Original Color Positive Film (cut and sleeved) Pre-Production Sample Pre-Production Sample Uncompressed Digital Ortho Imagery Tiles in GeoTif format Uncompressed Digital Ortho Imagery Tiles in GeoTif format Compressed Digital Ortho Imagery Tiles in MrSID Compressed Digital Ortho Imagery Tiles in MrSID Compressed Project Mosiac (CPM) in MrSID compressed format Compressed Project Mosiac (CPM) in MrSID compressed format Photo Center Data File Photo Center Data File Metadata Files Metadata Files Delivered on external hard drive Delivered on external hard drive
Vermont Imagery
Boise Project Deliverables Project Flight Plan – reviewed and approved by APFO Project Flight Plan – reviewed and approved by APFO 4-band non-georeferenced, uncompressed, unstretched digital image files 4-band non-georeferenced, uncompressed, unstretched digital image files GPS/IMU Data GPS/IMU Data Pilot Logs Pilot Logs Metadata and other text files Metadata and other text files Delivered on hard drives Delivered on hard drives
Block A Block B Block C Block D Boise National Forest Flight Plan Shape file
Delivery of Boise Imagery on 22 hard drives ingested to the Network Attached Storage (NAS) for inspection (39 TB of working space )
Inspection Process A stretch is applied to the 16-bit imagery for purpose of inspection A stretch is applied to the 16-bit imagery for purpose of inspection Imagery is processed to 8-bit for visual defect inspection by Quality Assurance Imagery is processed to 8-bit for visual defect inspection by Quality Assurance Inspection is accomplished using ArcMap Application Inspection is accomplished using ArcMap Application
Inspection Scale (1:2,000)
Boise Imagery
Inspection Items Sun angle Sun angle Sidelap and endlap Sidelap and endlap Metadata files Metadata files Photo center file Photo center file Defects ( snow, clouds, cloud shadow, crab, tilt ) Defects ( snow, clouds, cloud shadow, crab, tilt )
Imagery Issues
Photo Center File Block C - Drive 1 ProjID FltLn ExpNum ExpDate ExpTime
Status of Inspection Forest Service priority area inspection map Inspecting Block C