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Summary

Project pipit

Processed 2016-09-2223:55:06

CameraModelName(s) FC300XW_3.6_4000x3000(RGB)

AverageGroundSamplingDistance(GSD) 3.72cm/1.46in

AreaCovered 0.0373km2/3.732ha/0.0144sq.mi./9.2267acres

TimeforInitialProcessing(withoutreport) 07m:31s

QualityCheck

Images medianof23552keypointsperimage

Dataset 34outof37imagescalibrated(91%),allimagesenabled

CameraOptimization 3.41%relativedifferencebetweeninitialandoptimizedinternalcameraparameters

Matching medianof2808.12matchespercalibratedimage

Georeferencing yes,no3DGCP

Preview

Figure1:OrthomosaicandthecorrespondingsparseDigitalSurfaceModel(DSM)beforedensification.

CalibrationDetails

NumberofCalibratedImages 34outof37

NumberofGeolocatedImages 37outof37

InitialImagePositions

Figure2:Topviewoftheinitialimageposition.Thegreenlinefollowsthepositionoftheimagesintimestartingfromthelargebluedot.

ComputedImage/GCPs/ManualTiePointsPositions

Uncertaintyellipses5xmagnified

Figure3:Offsetbetweeninitial(bluedots)andcomputed(greendots)imagepositionsaswellastheoffsetbetweentheGCPsinitialpositions(bluecrosses)andtheircomputedpositions(greencrosses)inthetop-view(XYplane),front-view(XZplane),andside-view(YZplane).Reddotsindicatedisabledoruncalibratedimages.Dark

greenellipsesindicatetheabsolutepositionuncertaintyofthebundleblockadjustmentresult.

Absolutecamerapositionandorientationuncertainties

X[m] Y[m] Z[m] Omega[degree] Phi[degree] Kappa[degree]

Mean 1.331 1.331 3.307 2.977 1.810 0.755

Sigma 0.230 0.231 0.684 0.194 0.202 0.014

Overlap

Numberofoverlappingimages: 1 2 3 4 5+

Figure4:Numberofoverlappingimagescomputedforeachpixeloftheorthomosaic.Redandyellowareasindicatelowoverlapforwhichpoorresultsmaybegenerated.Greenareasindicateanoverlapofover5imagesforeverypixel.Goodquality

resultswillbegeneratedaslongasthenumberofkeypointmatchesisalsosufficientfortheseareas(seeFigure5forkeypointmatches).

BundleBlockAdjustmentDetails

Numberof2DKeypointObservationsforBundleBlockAdjustment 103452

Numberof3DPointsforBundleBlockAdjustment 38279

MeanReprojectionError[pixels] 0.176

InternalCameraParameters

FC300XW_3.6_4000x3000(RGB).SensorDimensions:6.317[mm]x4.738[mm]

EXIFID:FC300XW_3.6_4000x3000

FocalLength

PrincipalPointx

PrincipalPointy R1 R2 R3 T1 T2

InitialValues 2285.714[pixel]3.610[mm]

2000.000[pixel]3.159[mm]

1500.000[pixel]2.369[mm] 0.000 0.000 0.000 0.000 0.000

OptimizedValues 2363.775[pixel]3.733[mm]

1996.614[pixel]3.153[mm]

1506.984[pixel]2.380[mm] -0.016 0.015 0.001 -0.000 -0.000

Uncertainties(Sigma) 23.287[pixel]0.037[mm]

1.244[pixel]0.002[mm]

0.733[pixel]0.001[mm] 0.001 0.002 0.001 0.000 0.000

ThenumberofAutomaticTiePoints(ATPs)perpixelaveragedoverallimagesofthecameramodeliscolorcodedbetweenblackandwhite.Whiteindicatesthat,inaverage,morethan16ATPsareextractedatthispixellocation.Blackindicatesthat,inaverage,0ATPhasbeenextractedatthispixellocation.Clickontheimagetotheseetheaveragedirectionandmagnitudeofthereprojectionerrorforeachpixel.Notethatthevectorsarescaledforbettervisualization.

2DKeypointsTable

Numberof2DKeypointsperImage NumberofMatched2DKeypointsperImage

Median 23552 2808

Min 23181 200

Max 24772 7950

Mean 23700 3043

3DPointsfrom2DKeypointMatches

Numberof3DPointsObserved

In2Images 26028

In3Images 6377

In4Images 2588

In5Images 1247

In6Images 719

In7Images 483

In8Images 323

In9Images 171

In10Images 143

In11Images 85

In12Images 50

In13Images 32

In14Images 21

In15Images 9

In16Images 1

In17Images 2

2DKeypointMatches

Uncertaintyellipses100xmagnified

Numberofmatches

25 222 444 666 888 1111 1333 1555 1777 2000

Figure5:Computedimagepositionswithlinksbetweenmatchedimages.Thedarknessofthelinksindicatesthenumberofmatched2Dkeypointsbetweentheimages.Brightlinksindicateweaklinksandrequiremanualtiepointsormoreimages.Darkgreenellipsesindicatetherelativecamerapositionuncertaintyofthebundleblock

adjustmentresult.

Relativecamerapositionandorientationuncertainties

X[m] Y[m] Z[m] Omega[degree] Phi[degree] Kappa[degree]

Mean 0.058 0.060 0.057 0.071 0.095 0.024

Sigma 0.033 0.031 0.033 0.033 0.051 0.013

GeolocationDetails

AbsoluteGeolocationVariance

MinError[m] MaxError[m] GeolocationErrorX[%] GeolocationErrorY[%] GeolocationErrorZ[%]

- -15.00 0.00 0.00 0.00

-15.00 -12.00 0.00 0.00 0.00

-12.00 -9.00 0.00 0.00 0.00

-9.00 -6.00 0.00 0.00 0.00

-6.00 -3.00 0.00 0.00 2.94

-3.00 0.00 47.06 41.18 35.29

0.00 3.00 52.94 58.82 61.76

3.00 6.00 0.00 0.00 0.00

6.00 9.00 0.00 0.00 0.00

9.00 12.00 0.00 0.00 0.00

12.00 15.00 0.00 0.00 0.00

15.00 - 0.00 0.00 0.00

Mean[m] -0.000000 -0.000000 -0.000001

Sigma[m] 1.113721 0.470979 0.879307

RMSError[m] 1.113721 0.470979 0.879307

MinErrorandMaxErrorrepresentgeolocationerrorintervalsbetween-1.5and1.5timesthemaximumaccuracyofalltheimages.ColumnsX,Y,Zshowthepercentageofimageswithgeolocationerrorswithinthepredefinederrorintervals.Thegeolocationerroristhedifferencebetweentheintialandcomputedimagepositions.Note

thattheimagegeolocationerrorsdonotcorrespondtotheaccuracyoftheobserved3Dpoints.

RelativeGeolocationVariance

RelativeGeolocationError ImagesX[%] ImagesY[%] ImagesZ[%]

[-1.00,1.00] 100.00 100.00 100.00

[-2.00,2.00] 100.00 100.00 100.00

[-3.00,3.00] 100.00 100.00 100.00

MeanofGeolocationAccuracy[m] 5.000000 5.000000 10.000000

SigmaofGeolocationAccuracy[m] 0.000000 0.000000 0.000000

ImagesX,Y,ZrepresentthepercentageofimageswitharelativegeolocationerrorinX,Y,Z.

GeolocationOrientationalVariance RMS[degree]

Omega 1.585

Phi 1.384

Kappa 3.757

GeolocationRMSerroroftheorientationanglesgivenbythedifferencebetweentheinitialandcomputedimageorientationangles.

InitialProcessingDetails

SystemInformation

HardwareCPU:Intel(R)Core(TM)i5-4258UCPU@2.40GHzRAM:4GBGPU:noinfo(Driver:unknown)

OperatingSystem Darwin15.6.0x86_64

CoordinateSystems

ImageCoordinateSystem WGS84(egm96)

OutputCoordinateSystem WGS84/UTMzone50N(egm96)

ProcessingOptions

DetectedTemplate 3DMaps

KeypointsImageScale Full,ImageScale:1

Advanced:MatchingImagePairs AerialGridorCorridor

Advanced:MatchingStrategy UseGeometricallyVerifiedMatching:no

Advanced:KeypointExtraction TargetedNumberofKeypoints:Automatic

Advanced:Calibration

CalibrationMethod:StandardInternalParametersOptimization:AllExternalParametersOptimization:AllRematch:Auto,yes

PointCloudDensificationdetails

ProcessingOptions

ImageScale multiscale,1/2(Halfimagesize,Default)

PointDensity Optimal

MinimumNumberofMatches 3

3DTexturedMeshGeneration yes

3DTexturedMeshSettings: Resolution:MediumResolution(default)ColorBalancing:no

Advanced:3DTexturedMeshSettings SampleDensityDivider:1MaximumNumberofTrianglesperLeaf:8

Advanced:MatchingWindowSize 7x7pixels

Advanced:ImageGroups group1

Advanced:UseProcessingArea yes

Advanced:UseAnnotations yes

Advanced:LimitCameraDepthAutomatically no

TimeforPointCloudDensification 04m:02s

Timefor3DTexturedMeshGeneration 02m:09s

Results

NumberofProcessedClusters 6

NumberofGeneratedTiles 1

Numberof3DDensifiedPoints 945229

AverageDensity(perm3) 43.74

DSM,OrthomosaicandIndexDetails

ProcessingOptions

DSMandOrthomosaicResolution 1xGSD(3.72[cm/pixel])

DSMFilters NoiseFiltering:yesSurfaceSmoothing:yes,Type:Sharp

RasterDSMGenerated:yesMethod:InverseDistanceWeightingMergeTiles:yes

Orthomosaic

Generated:yesMergeTiles:yesGeoTIFFWithoutTransparency:noGoogleMapsTilesandKML:no

TimeforDSMGeneration 03m:01s

TimeforOrthomosaicGeneration 08m:16s