2005 naip post season summary surdex team 2005 naip post season summary 6 december, 2005 ron...

2005 NAIP Post Season Summary

Surdex TeamSurdex Team2005 NAIP Post Season Summary2005 NAIP Post Season Summary

6 December, 20056 December, 2005

Ron Hoffmann, PresidentRon Hoffmann, PresidentCraig Molander, SVP Business DevelopmentCraig Molander, SVP Business DevelopmentJohn Boeding, SVP Production/OperationsJohn Boeding, SVP Production/Operations

Tim Bohn, NAIP/NRI Project ManagerTim Bohn, NAIP/NRI Project Manager


Team Project AreasTeam Project Areas

7 complete states – all natural color, film acquisition Additional state (Indiana) for PhotoScience team – processing

only (aerotriangulation CCM production) Flight line miles: ~166,000 DOQQs: 41,982 (including Indiana) Counties: 656 (including Indiana)


Team MembersTeam Members

Surdex Corporation – prime contractor, all production Keystone Aerial Surveys – flying and scanning Great Lakes Aerial Surveys – flying Horizons – flying Tim Tyler Surveying and Mapping – flying


Aerial PhotographyAerial Photography

11 Aircraft (5 companies) – 8 pistons, 3 turbines GE/MJ Harden unable to participate as planned – equipment

problems with leased aircraft >96% efficiency (<4% rejections)

Company Kansas Missouri Nebraska Oklahoma OregonSouth Dakota Wisconsin Total % of Total

Surdex 24,263 9,310 11,401 18,082 22,248 11,399 96,704 58.2%Keystone 12,068 13,095 13,909 4,769 43,840 26.4%

GLAS 14,157 14,157 8.5%Horizons 9,764 9,764 5.9%

Tyler 1,733 1,733 1.0%

24,263 21,379 24,496 19,814 32,012 25,308 18,925 166,197


Photography PerformancePhotography Performance

Granted early start in Nebraska Over-ran only Wisconsin (3 days) Flew over 80% of total days

Start Finish Elapsed Actual DaysProgram Actual Diff Program Actual Diff Days Days Flown

Kansas 6/15 6/16 1 8/15 7/30 16 45 24 53.3%Missouri 6/15 6/15 0 8/15 8/10 5 57 20 35.1%Nebraska 7/1 6/29 (2) 8/31 8/27 4 60 22 36.7%Oklahoma 6/1 6/2 1 8/31 7/9 53 38 24 63.2%Oregon 6/15 6/29 14 8/31 8/13 18 46 33 71.7%South Dakota 7/1 7/4 3 8/15 7/27 19 24 15 62.5%Wisconsin 6/1 6/1 0 8/31 9/3 (3) 95 24 25.3%

95 78 82.1%


Timeline AnalysisTimeline Analysis

From production databases, the following dates were tracked for analysis:

Acquisition of photography Image scanning (through QC) Aerotriangulation blocks (“AT blocks”) DOQQ/ortho generation Balancing (OrthoVista, “ovistas”) Shipment of CCMs

Note: little, if any, time difference between AT blocks and ortho generation (aerotriangulation actually initiates ortho scripts)


Oklahoma TimelineOklahoma Timeline

Oklahoma (2 Meter)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

6/2/

2005

6/9/

2005

6/16

/200

5

6/23

/200

5

6/30

/200

5

7/7/

2005

7/14

/200

5

7/21

/200

5

7/28

/200

5

Date

Cu

mu

lati

ve %

photos

scans

blocks

orthos

ovistas

CCMs


Oregon TimelineOregon Timeline

Oregon (1 Meter)

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

6/29

/200

5

7/6/

2005

7/13

/200

5

7/20

/200

5

7/27

/200

5

8/3/

2005

8/10

/200

5

8/17

/200

5

8/24

/200

5

8/31

/200

5

9/7/

2005

9/14

/200

5

9/21

/200

5

9/28

/200

5

Date

Cu

mm

%

photos

scans

blocks

orthos

ovistas

CCMs


Timeline AnalysisTimeline Analysis

Total Project

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

6/1/

2005

6/15

/200

5

6/29

/200

5

7/13

/200

5

7/27

/200

5

8/10

/200

5

8/24

/200

5

9/7/

2005

9/21

/200

5

10/5

/200

5

Date

Cu

mm

%

photos

scans

blocks

orthos

ovistas

CCMs


Overall PerformanceOverall Performance

Primary indicator is “time delay” relating acquisition of photography to shipment of CCM

Most critical to end-users performing Compliance

Measure of production performance

Time delay = days from last exposure acquired in a county until shipment of the CCM



Time Delay - Last Exposure to CCM ShipmentWithin 45 Days: 45% Within 55 Days: 75%

0

5

10

15

20

25

30

10

14

18

22

26

30

34

38

42

46

50

54

58

62

66

70

74

78

82

86

90

Lapse (Days)

Co

un

tie

s



Cumulative CCM Delivery(Days from Last Exposure)

0

100

200

300

400

500

600

700

10 14 18 22 26 30 34 38 42 46 50 54 58 62 66 70 74 78 82 86 90

Lapse (Days)

CC

Ms


Time Delays by Project AreaTime Delays by Project Area

Indiana Kansas Missouri Nebraska Oklahoma Oregon So Dakota Wisconsin Overall

minimum 28 10 10 19 21 42 41 17 10average 47 35 38 40 34 53 81 48 45maximum 76 54 62 68 50 68 92 78 92

0102030

405060

70

80

90

100

Tim

e L

ap

se (

Days)

Minimum

Average

Maximum


Total Effort – NormalizedTotal Effort – Normalized

Total Cumulative Progress (Normalized )

0.00%

10.00%

20.00%

30.00%

40.00%

50.00%

60.00%

70.00%

80.00%

90.00%

100.00%

Perc

en

t C

om

ple

te

photos

scans

orthos

ovistas

ccms


Normalized DifferencesNormalized Differences

Cumulative Percent Differences (Normalized)

0.00%

5.00%

10.00%

15.00%

20.00%

25.00%

30.00%

35.00%

40.00%

45.00%

50.00%

55.00%

60.00%

photo_scan

scan_ortho

ortho_ovista

oviista_ccm


ObservationsObservations

Time from acquisition to completion of scanning is single largest time difference

If flying goes smoothly, scanning will lag Scanning through completion of AT blocks/orthos next

largest Often related to “fractionated” areas where flying is

incomplete – must wait until there is enough to work with


New ImplementationsNew Implementations

Continuing investment in the enhancement of flight and production databases:

Development undertaken before and during project More items and metrics tracked than in previous years More queries and reports created in response to production

requirements Daily posting of standard status reports Real-time status queries



Scanned imagery saved at 12 bits/pixel – took remapping to 8 bpp out of the hands of the image scanner software

Colorimetry handled using look-up tables for groups of exposures (eg: a mission)

Dodging, colorimetry, remapping (128bpp) performed in a single step

Less setup time required Less subjectivity by scanning technician More consistent colorimetry and tone balance



Automated prediction of smearing and occlusions in DOQQs due to rugged terrain (eg: Oregon)

Ray trace algorithm using photo geometry and DEM Occlusions and “grazing slopes” detected Independent of orthorectification Results contained in database Pixel masks/shape files created for assessment Eliminated need for specific QC

Initial CCMs delivered with only “touch-up” for extremely bad areas (not affect agricultural areas)

DOQQs/CCMS revised before final deliveries (using areas from adjoining DOQQs/orthos)


New ImplementationsNew Implementations Established standard schedule for full-time Surdex

pilots 15 days in field, followed by 5 days off Back-up crews work 5-day stints

Less fatigue on aircrews Better for the “home front” – known schedules Aircraft maintenance performed during most crew

exchanges

Nearly all required aircraft inspections performed in-house


RecommendationsRecommendations

Increase percentage of initial payment (60% - 70%) to accommodate increasing cost of acquisition (fuel…)

If more stringent specifications are adopted, consider initial CCM delivery at less stringent specifications to avoid lengthening delivery schedules

If sample products are used, suggest using raw imagery to ensure approval timeframe does not interfere with product delivery

Request ’05 survey results prior to beginning of ’06 work to ensure user issues are addressed

Examine use of MG3 compression – which is proprietary, time-consuming, error-prone

2005 naip post season summary surdex team 2005 naip post season summary 6 december, 2005 ron...

Documents

indiana slide

mapping flying slide

photoscience team processing

naipnri project manager

indiana counties

great lakes aerial surveys

leased aircraft

tim tyler surveying