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USDA – Planning Meeting December 3, 2008 Digital Inspection Process Review Sherry Holyoak Resource Imagery Inspection Section.

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Presentation on theme: "USDA – Planning Meeting December 3, 2008 Digital Inspection Process Review Sherry Holyoak Resource Imagery Inspection Section."— Presentation transcript:

1 USDA – Planning Meeting December 3, 2008 Digital Inspection Process Review Sherry Holyoak Resource Imagery Inspection Section

2 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

3 Vermont Imagery

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5 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

6 Block A Block B Block C Block D Boise National Forest Flight Plan Shape file

7 Delivery of Boise Imagery on 22 hard drives ingested to the Network Attached Storage (NAS) for inspection (39 TB of working space )

8 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

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10 Inspection Scale (1:2,000)

11 Boise Imagery

12 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 )

13 Imagery Issues

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16 Photo Center File Block C - Drive 1 ProjID FltLn ExpNum ExpDate ExpTime 61402021496420080724165706 61402021496520080724165714 61402021496620080724165721 61402021496720080724165729 61402021496820080724165736 61402021496920080724165743 61402021497020080724165751 61402021497120080724165758 61402021497220080724165805 61402021497320080724165813 61402021497420080724165820 61402021497520080724165827 61402021497620080724165835 61402021497720080724165842 61402021497820080724165849 61402021497920080724165857

17 Status of Inspection Forest Service priority area inspection map Inspecting Block C


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