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1

2 ! Laser "# MSc $ % & ' $ 2007 ii

3 «! "»! # 222 «!!» 261$ «%! & ( ' &# )» & ( : "! )! ) &! *: " &+! 2007 ISBN: iii

4 ! i 1 ( & 1 11 " ! ( & 2 #! 21 ) 9 22 (Contact Scanners) (Non-contact Scanners) Time-of-Flight "# (Triangulation) "$ (Handheld Scanners) "$ $ " (Structured Light Scanners) ! 20 ( & 3 $ & " " ## %& ## '#"# laser (Edge Effect) /! 31 ( & 4 $ ) 41 " # &# ("# # )# "$ (Registration) * (Geo-reference) ) +# $ ' "##"" "$ #" # 44 iv

5 ( & 5 51 " ! ( & 6 & & 61 &! laser / $ #" # "& (&!! laser 69 "& I (& # 71 "& I " laser 73 "& V ILRIS-3D v

6

7 & 1 GPS Reflectorless Total Station 2! laser!!!! # %!! # + ++! laser! +++! laser +V! # ILRIS-3D - 1 -

8 - 2 - laser

9 ( & 1 11 " / laser 1 #!! ( RGB!) #!! /! ( 3d animation computer games )!!! (reverse engineering)!!! 3! / Laser!!! & 1 Laser & 2 Laser 1 " && $" # " Laser Scanners 3D Scanners Terrestrial Scanner LIDAR / # " " #"$ laser - 3 -

10 GPS laser laser! 12 / $ 1 1 ( ) 2! 1 $ 4!!! $! / laser! # 1 #! ' ( ) - 4 -

11 13 -! / laser scanner (point cloud)! # 2 & (! RGB)! 1! laser $!! )!! 2 laser! ( ) &! laser 1! /$! =0 =0 # $ ( r! )!! 4! ( )!! (alignment registration ) 5!! (software) - 5 -

12 14 / laser $ reflectorless total stations 2!! : ( ) ( # ) & ( ) (! laser)! &!! 2 *! laser reflectorless ( GPS)! /!! 1 laser!!! #! 0!! 2 $ #!!! / : #"$ laser $ " " " # 6 $ 2 " " #" $ " "" " "# # #"# " - "" 0 #"# "$" " " "& - 6 -

13 2 GPS! / 4 # $ 4 laser 15 " laser! : "!!!! &!!!! &!! (! 4 #) 2 $ $! / 4! 4! laser!! - 7 -

14 - 8 - laser

15 ( & 2 #! 21 ) "!! 2 &!!! $! # /! laser &! 6 /! laser & 3 )! - 9 -

16 / /! $ : Time-of-flight (Triangulation Scanners) (Handheld Scanners) % (Structured Light Scanners) ) / (Conoscopic Holography Scanners) 2 (Modulated Light Scanners)

17 22 (Contact Scanners) / #$ - 1 CMM (Coordinate Measuring Machine)! 4! & 4 2 #! # * 1 & 5 #

18 * $ ( )! & $ & 7 & 6 2 Faro # /!! : (reverse engineering) #! computer games!! )! ( ) - / $ : ( )

19 & 8 23 (Non-contact Scanners) /! 1 ( ) ( ) /! / ( laser 4) 0 / $ ( )! $ 1! #!

20 231 Time-of-Flight /! ( ) / ( LIDAR - Laser Induced Differential Absorption Radar LIght Detection And Ranging)!! 1 $! 1 & 9 Time-of-Flight Leica & 10 Time-of-Flight Faro 1 $ laser! 1 $ laser laser $ $ laser laser laser $ $ ' laser ( c)! s=(c*t)/

21 $ & # " 33 picosecond (33 x seconds seconds) laser 1 mm 1 laser $ " & 11 Time-of-Flight Laser/Receiver/Time Measurement Unit: ' laser Mirror: ) laser Object: 1 : # # (! ) ' *!

22 232 # (Triangulation) / $ )!! laser! time-offlight laser $ Laser $ 1 $ : laser laser #: & ( laser ) & 12 Laser projector: ' laser CCD Sensor: % laser ( CCD ) $ laser $ laser! laser

23 & 13 () () Base: " ( ) Laser Projector: ' laser CCD: CCD Lens Mirror: 2 laser Object:

24 233 (Handheld Scanners)! '!! (! ) #!! & 14 2 Handyscan!! 1!! &

25 234 (Structured Light Scanners) / ( 4! laser) )!!! ( ) 1 " - 4 laser $ (!! ) - 4 MLT (Multistripe Laser Triangulation) & 16 CCD $ $ $ / CCD laser $

26 24 (Non-Contact Passive Scanners) / # 2! $ 2 25! / $ laser! Time-of-Flight 5! Time-of-Flight #!!!! ( ) 5!! 2! "!! 1 mm + 2 ppm 3! 3 Ppm: Parts Per Million # & $" # #"#

27 time-of-flight $! ppm & $ 1! ( #! ) 4! time-of-flight )! 3 # ( )!! (!! ) "! $! ' # & 4 1 $" # " " " (micrometer micrometre m) "#" # 10-6 m "# " $ "#" " $" " #" " #"

28 laser

29 ( & 3 $ %$ (% % %*+ *% "$ - 31 * 4 1 laser 1 # : 6 % laser /! # "! (! reflectorless )! & $ (edge effect) " & ) $ #!! &!

30 % # 3 5 &! #! / 4! 3 / ( ) 0 ( 4 & 17 & 5 #"# "$ -"/" # " #$# " "# " & " " 2" $ #$# " " " "$ "# 3" " " " " " "

31 laser /!! 4 $ 1 4!!!! / & )! #!! 2!! # 5 /! (!! & laser! /!! # & ( )! $ #

32 & $& laser / $ laser! $ laser! "! $ Gauss laser! laser & 19 ' Gauss

33 $ : 1/e 2 x l max l max laser 1/e % laser 6 mm 6 mm 135 % & 20 ' laser L * laser! $ laser !! laser & 21 & laser Z R

34 32 (Edge Effect) *!! Time-of-Flight!! laser! laser ' $ # 4!! # laser *! ( )!!!! # 1! $ 33 '! ( # )!! 4!!

35 ! #! # " $ 2!! &! 1 / ( )!! #! $! & 22 "!

36 !! & # 4! $ 1 # # ( ) 5 : 6 5 &! $ laser 4 5 $ 1 # $ & # ( ) ) 1 7! 2 # (!!!) laser

37 34 /! ( GPS)! laser $ # laser ) ( registration) # & 23 & 24! laser (control points)!!

38 (3 5 )! 1 $ 2 * 4! 5 4 1!!!!! #!! & 25!

39 ( & 4 $ %$ (% % "0*% % 41 " # * laser / laser! # # ( ) #$ " 4 # # # # # 3D # : 2 * (Registration) " ) % &# # $ $ /! 2!! # 5! # 2 CAD

40 # & #! #! # & 26 &# CAD &# 421 1!! # (laptop palmtop) & (USB Stick Flash Card ) # /! #

41 422 2 (Registration)! (registration)!! ( )! #! 1 (! 2)! & 27 * '! #! ) &! '! #

42 $ " 4!! 2 ) $!! /!!! * 423 & (Geo-reference) 1 ( ) )! 2 GIS / 1! laser & 3! # &!! ( ) 4 1 )8 laser! laser &! &!!! ( ) : 1 '! (! )

43 2 '! ( GPS )!! 3 '! # # (&!! $ $ # /! : )! $! & ( #! ) # ( ) $ & 4 ( ) laser $ (edge effect) 4!! # 1!!! # 1! $ :

44 ! %! # " /! (! & laser! /!! & ( )! $ # *! 5!! ( )!! $ # " 10 cm

45 # 100 m 2! # 30 cm 16 & cm/m 2! # 30 cm/m 2 /!! 50% 2 : 1! 9! 9 /! 4! / : ) # # # &!! #!

46 '! ( : ) $ & !!! # 5 #! #! CAD CAD # & # # # # CAD #!!

47 425 $ & 1 DTM ( TIN! ) DTM laser 2!! #! #! " # " $!! & 30 # 2mm %# 05 mm

48 426 ) ) 0 ( ; #! CAD AutoCAD MicroStation CAD $ : & CAD CAD 0! $ CAD AutoCAD MiroStation & ( attributes) # # 1! /! $ 1 2!! 4!! # ' $! # & / $! TIN! DTM # 3D # CAD / NURBS (Non-Uniform

49 Rational B-Splines) / $ 4 & 31 &#!! # # 1 # /!! # & #! 3D Studio Autodesk TriForma Bentley 2 # $ #! 4 $

50 43 0 # ) ' ( r! ) RGB 2! #! # : '! 256! < #!! 2 # 4 / rendering #

51 & 32 # & !

52 & 34 ' 4 (#) & 36 ' rendering

53 & 35 9 RGB

54 laser

55 51 " ( & 5 1%*'- / laser!! $ /! laser! $ 1 ( #)! $! laser 52 / laser!! &! ( )! ' 20 30% laser 1 ##!! $!!! & :!! (! '! ' ' $ '! (! ) (!

56 ' ' & ' & 37 9!!! ( )! $! ! # $!! laser!

57 & 38 laser & 39 laser

58 & 40 $ : 7 km 3 ) $ # 3 # 1! # ) laser % 15 m % 6 m 10! 4! ) : 8250 $ ) : 0 $ &

59 53 / / laser! /!!!! %! &: '!! ) '!! '!! ( )! - 4! -! (! -!!)! computer games animation /!!:!! & 42 1 ( )! & laser!!! $!

60 & & 43 & 43 &

61 54! / laser! 1!! 4 # # & 45 /!! %! Oregon! Terminal 3 ( ) Toronto

62 & 46 Oregon 4! &

63 & # laser Toronto % Terminal 3 (Toronto Airport) 4! ( ) 4! ' GPS 4! * # 5! 4! 2! ' 4!! 19! 0(; mm ' 55 m 0(; # cm +! 4! 1 cm & 49!! Terminal 3 Toronto

64 55 & / laser $ )! reverse engineering 6! # laser!!!! *!! & 50 9 (27152 )!! laser & # $ 6 # " "$ -" " &# $ " " " "$

65 & 51 & #! (a) (b) (c) (d) laser &

66 & 53!! # & 54 &#!

67 56 1 laser! #!! 1 #!! (!! ) "! $ laser ' 2 Pixel! laser /! 1 & 55 : %#: & laser

68 # *! #! 2 reflectorless laser $! 1 - & 56 & # 30 / &

69 & *! # 4 ( :) & 58! laser! Diana " ' -! # USS Cole

70 &

71 ( & 6 3 (% '"*%'%% 61 &! laser 611 %!!! #! 3 /! 2! 5 laser #! # 2!!! CAD! 3D # 612 4& # $ 3! # / 8 10! : ' ' # )!

72 &! & #! '!! laser!! $ # ()! 613 ( /! laser 25% # &! laser 75 80% 7 8!! laser * $ 4! laser 8! /! (palmtop laptop)!

73 ! 4! 1 4!!! 62 laser! : /! /! #!! ( 4 ) 1! 1 EDM (1 2 ) ) laser!! * 4 offset!!! laser / 1 /! $ 3D 3 3! #

74 2 * #! #! CAD $ 3 4! #!! 5! #! & laser $ / (!!! )!!! laser! '! $!!

75 "%*%*'% )!! laser &!! laser!!! / & Time-of-flight & - (m) Link 3rdTech DeltaSphere 12 SceneVision-3D www3rdtechcom CALLIDUS Precision Systems Leica Geosystems FARO I-SiTE Pty Ltd Mensi (meanwhile Trimble) MetricVision CP HDS HDS Scan Station 134/300 HDS HDS LS LS LS I-SiTE 4400 LR 3D-Extractor Cyclone CloudWorx FARO Scene wwwcallidusde wwwleicageosystems wwwfarocom 150/700 I-SiTE Studio wwwisite3dcom GS Dipsos GS RealWorks MV MV wwwtrimblecom wwwmetriscom Optech ILRIS-3D 800/1500 PolyWorks wwwoptechca Riegl Laser Measurement Systems Trimble LMS-Zxxx series 350/1000 RiSCAN PRO wwwrieglcom GX-3D 200 3Dipsos GS RealWorks wwwtrimblecom Zoller+Froehli ch GmbH IMAGER Light Form IMAGER Modeller wwwzf-lasercom

76 & Mensi (meanwhile Trimble) # ( CCD Camera) & - (m) S10 10 S Dipsos RealWorks Link wwwtrimblecom " $" " i3mainz $ " " "

77 "%*%*'% ) & #! & 5 Link InnTec srl Reconstructor wwwreconstructorit InnovMetric Software Polyworks wwwinnovmetriccom INUS Technology RapidForm wwwrapidformcom Metris Focus Inspection Focus Reverse Engineering wwwmetriscom kubit GmbH PointCloud wwwkubitde metrologic group Metrolog wwwmetrologicfr Phocad GmbH Phidias wwwphocadde UGS Imageware wwwugsplmde Raindrop Geomagic Geomagic Studio wwwgeomagiccom Pointools Pointools View wwwpointoolscom Free Open Source MeshLab meshlabsourceforgenet Menci Software Z-Map Laser wwwmencicom " $" " #" $ " i3mainz $ " " "

78 laser

79 "%*%*'% Laser $ Websites! #! Advanced LIDAR Technology Inc AeroMap US Airborne 1 Corporation Applied Geomatics Research Group (AGRG) The Archaeological Data Service ASPRS Online Cloud Peak Software LLC EarthData EUROSENSE Helica Heritage3D project

80 Horizons Inc(Horizons) i3mainz INPHO LandAir Mapping Inc Lasermap Image Plus LiDAR Data LIDAR Services (UK) LIDAR Services International Inc LiDARXCHANGE M7 Visual Intelligence LP MAPPS Merrick & Company NIIRS10 Inc NOAA - Lidar data available from NOAA CSC

81 North Carolina Flood Mapping Program NRCS (Natural Resources Conservation Service) NSGIC QCoherent Software Remote Sensing and Photogrammetry Society (Laser Scanning and LiDAR Special Interest Group) Royal Institute of charted Surveyors (RICS) Mapping and Positioning Practice Panel Spectrum Mapping LLC Spencer B Gross Inc Terra Remote Sensing Inc (TSRI) Terrapoint The English Heritage aerial survey and investigation team The English Heritage Big Data project at the Archaeological Data Service The English Heritage Metric Survey TeamYork The International LIDAR Mapping Forum

82 The Survey Association Topographic Imaging Inc TopoSys USGS Florida Integrated Science Center - St Petersburg Woolpert

83 %5& # (NCALM) University of Florida / University of California-Berkeley Arizona State Florida International University - International Hurricane Research Center Forest Public Access Resource Center (ForestPARC) University of Idaho Idaho State University Louisiana State University Mississippi State University - Department of Forestry Research Ohio State University - Center for Mapping University of California Santa Cruz University of Florida University of Hawaii at Manoa University of Idaho

84 University of Maryland University of Mississippi University of South Carolina University of Texas University of Victoria -- BC CARMS York University &! laser $! : ISPRS Journal of Photogrammetry and Remote Sensing The Photogrammetric Record Journal of Architectural Conservation Geomatics World Engineering Surveying Showcase GIM International The American Surveyror Professional surveyor magazine! online Symposia for the International Committee for Architectural Photogrammetry (CIPA) International Archives of Photogrammetryand Remote Sensing

85 "%*%*'% V ILRIS-3D " " " &#" &" $ # /#" $ " ILRIS-3D # "#"# ## 0 " #$ #" $ #" " " "$ " " # " " " #" " &" " # ## " -# " $ "&9+) $ 1 /! 2 /! 3 % ( ) C 5! " ) # # 2 #!

86 //6&1 1 /="9/( / #! # ' # # $!! # / 1! $

87 $ ) $ 5 # $

88 $ =+9 # # $ 0!! $

89 $ &!

90 ( ) 2 ( )! / &

91 *% - POCKET PC &+)/+979+ '& POCKET PC!! Pocket PC Ethernet PC ' pocket PC $ Start Settings $ Connections

92 1 Network Cards $ 1 Dell Axim X51 WLAN Wireless Adapter IP 1 : #

93 ! IP Address OK! PC ' # Pocket PC! )! #

94 &))+91 1 /( POCKET PC CONTROLLER Pocket PC ILRIS-3D Pocket PC Controller! # () &! Pocket PC & File > Connect drop-down Wireless! # 5 : Save ) # Pocket PC Ping & # Ping OK Connect (Ping Time Out) IP Address #

95 =(6'+ &+ 1 )'&= Controller Tools > Camera Settings $ drop-down! $! White Balance # One Push OK! '!

96 &+-/"1 &=+/01 = ) ( & # Capture Image ' $! 360! & $ &! ( ) Pocket PC! $ Pocket PC 360 # $ $

97 )6/=+ '/ &=+/01 &9%+2&=/9/ (Region Of Interest ROI)! ( ) $ ( ) & Capture Image Pocket PC $ & Add Box # (ROI) ' ( ) # ( ) ' Add Box $

98 )6/=+ '/ ='&=79 =7 1!! & Next $! "! # Acquire ' 2 = $ #: Spot Spacing: # ' 4!!! Bounds: /$ 1 Pulse Mode! Last! #!! laser

99 ! (Information)!!!!! & Next $ &

100 &))+91 1 =7 1 ' Scan $ ' Change Edit $ #! -(! Scan Next #

101 =)/-/( =7 1 >! Scan Progress &! $! $!! 2 4 (Pause) (Stop) # (ROI) File > Disconnect

102 =)/-/( &+)/9 1 =7 1 >! Scan Progress ' View > Picture Blending ) # Back (<)!! # ' ##!

103 =/"='' &-&"0/( =7 1 POCKET PC Pocket PC! Ethernet ' #

104 =6(=/ )'&= " ( )! $ "=''1 &="-&+79 POCKET PC *

105 "=''1 &+-/"79 POCKET PC 1! '! File menu Connect Disconnect Edit menu Delete All ROIs %! (ROI) View menu Picture Blending &$ Show ROI Sub Regions &$/ Show Mirror Extents Grid &$/ ( ) Show Pan/Tilt Grid &$/ ILRIS-3D Show Pan/Tilt Window &$/ Tools menu Power Settings = Camera Settings = Time Settings = Help menu About &$!

106 -- 0=1 +' -1)= )+ &+-/"& % Pocket PC # $ #: Disconnected & & &$

107 &+-/"& )+91 1 )+ )-+ 1 /( =71 " View menu > Show Pan/Tilt Window $!! & Left Button: ' Right Button: ' # Go Button: % 0! (! ) $!

108 & Up Button: ' Down Button: ' Orientation Button: 6 Go Button: % 0! (! ) $! ' # : The Pan Tilt System is ready

109 / / / &+)-(<1 =7 1 ' Advanced Settings! 4!! ' pull down! 4 $!! (XX Pan Regions) 4 (XX degree overlap)

110 *% PC (9%& 1 '& %+)(/ " ILRIS-3D Pocket-PC Start > Settings > Network Connections Start >Control Panel > Network Connections ' $ ) Local Area Connection ( ) # Properties

111 $ Internet Protocol (TCP/IP)! Use the following IP address &! IP Address! IP 1 : # ) OK ILRIS-3D : # Subnet Mask firmware : IP Address: ( 00 # ) Subnet Mask =/ /01 "! firmware $ / $ : X: " 100XX: " $ OK PC

112 &))+91 1 /( CONTROLLER / PC PC Controller &$! File > Connect $ IP Address ( $ ) Save

113 &-&"0/ &+)/+979+ Ping #! : Ping OK?# Ping Time Out 3-4 Ping $ 5 $ Connect

114 =(6'+ &+ )'&= & Tools > Camera Settings $ 8! Pull-down Set! White Balance $ One Push ) $ ) $ OK Capture Images

115 )6/=+ '/ &=+/01 &9%+2&=/9/ (Region Of Interest ROI) ' # Capture Images $ 5! $ 360 $

116 ) Add (Region Of Interest ROI) # " 4 Next Delete 1 $! ' Next

117 =(6'+ &+ =7 1 / $ # Mean Distance & Spot Spacing '! 4!!! Bounds /$! Information /!

118 &))+91 1 =7 1 % Controller Options # # &! 1 Save Locally & 2 Save to Scanner USB Stick 3 Sync USB Stick $ -(! $ Scan #

119 =)/-/(61 1 =7 1 ) ## &!!!! ' # (ROI) File > Disconnect ## # # Picture Blending $! ' # (ROI) File > Disconnect

120 PC CONTROLLER ' Pocket PC ( laptop) '

121 "=''1 &+-/"79 PC CONTROLLER File menu Connect Disconnect Edit menu Delete All ROIs %! (ROI) View menu Show Pan/Tilt Window &$/ Show Camera Window &$/ o Show ROI Properties Window &$/! Tools menu Power Settings = Camera Settings = Time Settings = Interface Settings =

122 =6(=/ )'&= &$ ( ) " # $ Zoom In Out (+ -) ' / * Fit To View = $ * Picture Blending (pan/tilt option) &$/ Show Pan/Tilt Grid (pan/tilt option) &$/ ( ) Show Mirror Extents Grid (pan/tilt option) &$/ Show ROI Sub Regions (pan/tilt option) & $ ROI Capture! Save!$ Clear )$ $ " $- * " " #" " $ "

123 1'&+7 1 "+ /( /'&+ =7 1 "! 360 ILRIS-3D $ ' /

124 laser

125 =6(=/ ) 1 &$ # ' Clear $ ) 1 '=+ )+ &$ & $ ' / 6 $ "& /! ( / 4 ( /!!

126 &+-/"& =7 1 : 9 # # ROI Zoom buttons + - ' (+) (-) Fit $ Capture Images > Abort Capture % Add (ROI) Delete % (ROI) Next & (ROI) Previous & (ROI) $ XY

127 =(6'+ &+ =7 1 (2) / (ROI) $ # General &! $! Acquire! Pulse Mode First!!!! Last! 0!! Step Stare Pattern X Y Spot Spacing 0 ( '! 4!!! Allow Rect Gridding &!! 0 (! Bounds /$! / 0 ( Top Bottom) ( Left Right)

128 Information &! : Est Scan Time &! Est Data Size &! Est Data Points &! ROI Virtual ROI ID # ROI % Number of ILRIS ROIs ROI Virtual Rectangle Bounds # XY ROI Sub ROI Regions ROI " # ROI $

129 =(6'+ &+ (9%& 1 " # File > Connect ' $ Connection Type Ethernet Wireless IP Address % IP Address : Ethernet Wireless 10040X X Port 6 IP address Ping button & Save Cancel ) Connect

130 &+-/"& )+91 1 )+ )-+ 1 /( =71 " View > Show Pan/Tilt Window $!! % 0! (! ) 0! (! ) & Left Button: ' Right Button: ' # & Up Button: ' Down Button: ' Orientation Button: 6 Go Button: & Advanced Settings 4 (5% 125% 20%)

131 =6(=/ =(6'+ &79 )'&= ' Tools > Camera Settings! Pull-down Set! White Balance $ One Push ) $ ) $ OK "! # =6(=/ =(6'+ &79 0=/9/( ' Tools > Time Settings!

132 =6(=/ =(6'+ &79 &'29+ 1 ' Tools > Interface Settings! ROI Line Width ROI ROI Handle Size ' ROI Normal 0! ROI Selected 0! ROI Sub Region 1 2 0! ROI Sub Region 1 2 Selected 0! ROI Pan Tilt Grid 0! Mirror Grid 1 2 0! Modify button # Default &!

133 Andrews David Measured and Drawn Techniques and practice for the metric survey of historic buildings English Heritage Swindon UK 2003 Angelopoulou Elli and Wright John R Jr Laser Scanner Technology Technical Report MS-CIS GRASP Laboratory University of Pennsylvania Philadelphia PA June Bernardini Fausto Rushmeier Holly The 3D Model Acquisition Pipeline Computer Graphics Forum Volume 21 Number 2 June 2002 pp (24) Blackwell Publishing 2002 Boehler W Heinz G Marbs A Investigating laser scanner accuracy (updated for web presentation October 2003) XIXth CIPA SYMPOSIUM Antalya TURKEY 30 SEP 4 OCT 2003 Boehler W Heinz G Marbs A The potential of non-contact close range laser scanners for Cultural heritage recording CIPA International Symposium Surveying and Documentation of Historic Buildings Monuments Sites - Traditional and Modern Methods University of Potsdam Germany September Böhler W and Marbs A A comparison of 3D scanning and photogrammetry for geometric documentation in cultural heritage (in German: Vergleich von 3D-Scaning und Photogrammetrie zurgeometrischen documentation im Denkmalbereich) Fachhochschule Mainz Germany 2004 Bradley Foltz L 3D Laser Scanner Provides Benefits for PennDOT Bridge and Rockface Surveys Professional Surveyor Magazine May 2000 Dallas R W A A guide for practitioners Measured survey and building recording Historic Scotland Jan 2004 Douthett Sean Surveying at the Utah State Capitol Dome The American Surveyor June 2006 Dunn Martin C Laser Scanning for Everyday Survey Work The American Surveyor January/February 2005 English Heritage 3D Laser Scanning for Heritage Advice and guidance to users on laser scanning in archaeology and architecture English Heritage Publishing July 2007 Fudos Ioannis CAD/CAM Methods for Reverse Engineering: A Case Study of Re-engineering Jewelry Computer-Aided Design & Applications Vol 3 No

134 laser Gardener Nigel LiDAR on a Stick Incorporating Laser Scanning into Everyday Survey Operations Pays Dividends If You Approach It the Right Way Professional Surveyor Magazine February 2007 Vol 27 No Greaves Tom 3D laser scanning shortens Petronius repair schedule Offshore Engineer August Jacobs Geoff Professional Surveyor Magazine ' Lawson Ray Laser Scanning Hits the Road Running High-definition Scanning Proves Useful in Measuring Roadways Here Are the Ins and Outs Professional Surveyor Magazine February 2007 Vol 27 No Lee Elizabeth CyArk at Mesa Verde Using Laser to Help Save History The American Surveyor March 2008 Optech ILRIS-3D Operation Manual /Rev A Optech Incorporated Industrial & 3D Imaging Division Vaughan Ontario Canada November 2006 Page D Koschan A Sun Y and Abidi M Laser-based Imaging for Reverse Engineering Sensor Review Special issue on Machine Vision and Laser Scanners Vol 23 No 3 pp July 2003 Page D Koschan A Sun Y and Abidi M Laser-based Imaging for Reverse Engineering Sensor Review Special issue on Machine Vision and Laser Scanners Vol 23 No 3 pp July 2003 Reinhart Dave and Woolley Dave Laser Scanners - AWorking Guy s Experience California Surveyor Issue # 143 Fall 2004 Santa Rosa CA USA 2004 Ristevski John Laser Scanning for Cultural Heritage Applications Professional Surveyor Volume 26 Number 3 March 2006 Sanders Floyd H 3D laser scanning helps Chevron revamp platform Oil and Gas Journal 30 April 2001 Whitcare Gary Scanning the Levees Laser scanning technology plays critical role in mapping damage from Hurricane Katrina Point of Beginning August 2007 White Bruce A More valuable point Point of beginning February 2007 Wierzbinski Beth Amand St Out of the Dark Ages Point of beginning July

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