Digitizing, Modeling, & 3D Printing for a Forensic Reconstruction of George Washington

Digitizing, Modeling, & 3D Digitizing, Modeling, & 3D Printing Printing for a Forensic for a Forensic

Reconstruction of Reconstruction of George WashingtonGeorge Washington

Dianne Hansford

Dianne Hansford * prism.asu.edDianne Hansford * prism.asu.eduu

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Let’s DiscoverLet’s Discover

Scanning – DigitizingScanning – Digitizing Modeling – Create/Modify Geometry Modeling – Create/Modify Geometry 3D Printing – Rapid Prototyping3D Printing – Rapid Prototyping

Math + Computer Science + Engineering + Art

Demonstrate through application: Forensic Reconstruction of GW


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BackgroundBackground Summer ’05 marked the Summer ’05 marked the

250250thth anniversary of GW as anniversary of GW as officer in French & Indian officer in French & Indian warwar

Mt. Vernon Society Mt. Vernon Society commemorated this commemorated this anniversaryanniversary

Commissioned three life-Commissioned three life-sized statuessized statues– 19: officer in British army 19: officer in British army

(surveyor)(surveyor)– 45: led revolutionary army 45: led revolutionary army

(on horse)(on horse)– 57: sworn in as President 57: sworn in as President

(hand on bible)(hand on bible)


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Project TeamProject Team

AnthropologistsAnthropologists– Jeff Schwarz Jeff Schwarz

@ Univ. Pittsburg@ Univ. Pittsburg– Matt Tocheri Matt Tocheri

Computer ScientistsComputer Scientists – Anshuman Razdan Anshuman Razdan – Gerald FarinGerald Farin– Dianne HansfordDianne Hansford– Jeremy Hansen Jeremy Hansen

Artist &Artist &Graphic/Digital Graphic/Digital ArtistArtist– Dan CollinsDan Collins– Gene CooperGene Cooper

Rapid PrototypingRapid Prototyping– Scott Van NoteScott Van Note


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Given Information / Given Information / EvidenceEvidence

Bust made at age 53 (Houdon)Bust made at age 53 (Houdon) Life mask made at age 53 (Houdon)Life mask made at age 53 (Houdon) Life size statue at age 53 (Houdon)Life size statue at age 53 (Houdon)

Portraits Portraits – G. Stuart (age 63+)G. Stuart (age 63+)– C. Peale (age 50+)C. Peale (age 50+)

DenturesDentures Clothing and other artifactsClothing and other artifacts Historic and anecdotal evidenceHistoric and anecdotal evidence


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The Many Faces of GWThe Many Faces of GW


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A Hard Problem Made A Hard Problem Made HarderHarder

GW began loosing GW began loosing teeth at age 24teeth at age 24

GW dentures did GW dentures did not fit comfortablynot fit comfortably

Tooth loss Bone loss facial feature changes


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Given Info ScannedGiven Info Scanned


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Scanning: Animated MoviesScanning: Animated Movies


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3D Points 3D Points Triangle MeshTriangle Mesh


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Scanning: Art Scanning: Art

Digital Michelangelo Project

Dan Collin’s Twister


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Face Reconstruction ProcessFace Reconstruction Process

Mandibles from 20-Mandibles from 20-year-old year-old contemporary of GWcontemporary of GW

Modify digital copy Modify digital copy to fit into 53-year-to fit into 53-year-old face mask of GWold face mask of GW– Fit to denturesFit to dentures– Bone lossBone loss– Dimensions of faceDimensions of face– Normal agingNormal aging


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Volume DeformationsVolume DeformationsMorphing and WarpingMorphing and Warping


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Deformation OperationsDeformation Operations

Rotate about a lineRotate about a line Bend about a lineBend about a line Translate sets of Translate sets of

control pointscontrol points Taper cross Taper cross

section(s)section(s) Scale Scale MoveMove ...... GeomagicGeomagic

Isolation of deformation effects via a “deformation box”


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Mandible Deformation IMandible Deformation I


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Mandible Deformation IIMandible Deformation II


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Mandible Deformation Mandible Deformation IIIIII


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Mandible Deformation IVMandible Deformation IV


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Mandible Deformation VMandible Deformation V


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3D Printing3D Printing


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3D Printing3D Printing Also called Rapid Prototyping, Layered Manufacturing, Also called Rapid Prototyping, Layered Manufacturing,

...... Quick fabrication forQuick fabrication for

– proof of concept (example: new phone from proof of concept (example: new phone from Motorola)Motorola)

– functional testingfunctional testing– moldingmolding– 3d faxing3d faxing

““Additive” manufacturingAdditive” manufacturing– 1.5 mm material “pen” applicator (such as plastic)1.5 mm material “pen” applicator (such as plastic)– 0.25 mm thickness of each layer0.25 mm thickness of each layer– 1 hour to build each 25mm (1inch) of material1 hour to build each 25mm (1inch) of material


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3D Printing Method3D Printing Method


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3D Printing for Space 3D Printing for Space Stations?Stations?


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Digital ResultsDigital Results

19 45 57

45 & 5719


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Digital Digital RP RP “Real Life” “Real Life”


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History ChannelHistory Channel


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Scientific AmericanScientific American

Feb 2006 issue


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Thank you for your Thank you for your attention!attention!

Documents

Digitizing, Modeling, & 3D Printing for a Forensic Reconstruction of George Washington