augmented reality in civil engineering
TRANSCRIPT
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CIVIL ENGINEERING APPLICATIONS OF
AUGMENTED REALITYGUIDE : VIDHYA KANAKARAJ ATHUL VASNIK RAHMAN
ASSISTANT PROFESSOR, ROLL NO. :11
CIVIL ENGINEERING DEPARTMENT S8 CE
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OUTLINE
INTRODUCTION
AUGMENTED REALITY
APPLICATIONS
ADVANTAGES DISADVANTAGES
APPLICATION OF AUGMENTED REALITY IN CIVIL ENGINEERIN
CONCLUSION
REFERENCE
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INTRODUCTION
The o!"!# o$ %o!'%!(o& (&$o')*!(o& "'o%e##e# +e#(-, "* *& #%
!he %o&!'o (&$o')*!(o& $o' !he )*!e'(* "'o%e##e# (& %o!'%!(o&.
The )e(* !o '(&- !he (&$o')*!(o& $'o) !he (-(!* )oe# !o %o!'%
o%)e&!# #%h *# $oo' "*, %'o## #e%!(o, #e!%he#, e!%.
S(!*!(&- (&$o')*!(o& *& e#!*(#h(&- !he 'e*!(o& e!3ee& !he 'e*
%o!'%!(o& #(!e *& e#(-& (&$o')*!(o& (# 'e(e o& !he #"*!(* *3*'e&e##
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Continued…
A-)e&!e 'e*(!5 +AR/ %*& e #e !o $o') * #5&!he!(% e&0('o&)e&! !
(&!e-'*!(o& o$ 6D ((&- (&$o')*!(o& )oe# (&!o !he (0e "(%!'e o$ 'e*
AR *#o h*# &)e'o# o!he' %(0( e&-(&ee'(&- *""(%*!(o.
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AUGMENTED REALITY
A-)e&!e 'e*(!5 +AR/ (# * $(e o$ %o)"!e' 'e#e*'%h 3h(%h
%o)(&*!(o& o$ 'e*73o' *& %o)"!e'7-e&e'*!e *!*.
AR #e# (0e 0(eo ()*-e'5 3h(%h (# (-(!*5 "'o%e##e *& *-)
*(!(o& o$ %o)"!e'7-e&e'*!e -'*"h(%#.
A0*&%e# (&%e# !he #e o$ )o!(o&7!'*%(&- *!*, $(%(* )*'e' 'e
)*%h(&e 0(#(o&, *& !he %o!'%!(o& o$ %o&!'oe e&0('o&)e&!# %o&!*(&
o$ #eo'# *& *%!*!o'#.
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Exampe o! au"mented #eait$ u%in" a ta&et PC
Source: http://www.augment.com/blog/wp-content/uploads/2015/07/architecture-2.png
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COMPONENTS OF AR SYSTEM
T'*%e'#: ;*% *& 3h(!e $(%(* )*'e'#, GPS
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Component% o! an au"mented #eait$ %$%tem
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APPLICATIONS
V*'(o# *""(%*!(o o$ A-)e&!e 'e*(!5 (&%e:
E%*!(o&:
' I&!e'*%!(0e e*'&(&-' S""e)e&!(&- !e>! oo#
' Le*'&(&- 0(* 'e)o!e %o*o'*!(o&
' E&-(&ee'(&- -'*"h(%#
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APPLICATIONS
I&#!'(* e#(-&:
Co)"*'(#o& o$ "h5#(%* *& (-(!* )o%7"#.
E>"e'(e&%e * "'o%!# e#(-& *& o"e'*!(o& e$o'e "'o%!(o&.
Me(%* :
P'o@e%!(o& o$ "#e '*!e, oo "'e##'e, e!%. '(&- #'-e'5.
V('!* >7'*5 0(e3 o$ (&!e'&* o'-*.
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APPLICATIONS
M((!*'5:
Re* !()e *!* $o' #o(e'# (& *!!e $(e.
T'*(&(&- o$ #o(e'#, "(o!# e!%.
A0e'!(#e)e&! *& )*'e!(&-:
P'o)o!(o& #(&- AR *""(%*!(o.
A##(#!(&- %o)e'#.
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APPLICATIONS
Architecture an
V(#*(*!(o& o$ ((&- "'o@e%!#, &e'-'o& #!'%!'e# e!%.
So!(o& o$ o& #(!e %o!'%!(o& %h*e&-e#.
P*&&(&- *& #()*!(o& o$ %o!'%!(o& #(!e.
D*)*-e *& $*('e *##e##)e&!.
O(!e )*%h(&e'5 *& 3o' !'*(&(&-.
Co!'%!(o& )*&*-e)e&! #(&- ;IM.
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APPLICATIONS
O!he' *""(%*!(o (&%e *'!, e&!e'!*(&)e&!, #"o'!#, &*0(-*!(o&, #()
e!%.
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A""(%*!(o o$ *-)e&!e 'e*(!5
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ADVANTAGES
E##e&!(* *!* %*& e (&%o'"o'*!e (&!o !he 'e* 3o' %o&(!(o.
H(-he' *%%e##(((!5 !h'o-h )o(e "ho&e#.
E&h*&%e# !he #e'B# %''e&! "e'%e"!(o& o$ 'e*(!5.
H(-he' e$$(%(e&%5 (& %o)"e!(o& o$ !*##.
S)oo!h !'*(!(o& *o&- !he 'e*(!570('!*(!5 %o&!(&).
E&h*&%e %o*o'*!(0e !*##.
Moe# %*& e !e#!e e$o'e "'o%!(o&.
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DISADVANTAGES
I))*!'e %o'e 0('!* 'e*(!5 !e%h&oo-5.
P'(0*%5 %o&!'o.
The *% o$ *!* "o'!*((!5 e!3ee& AR e&0('o&)e&!#.
H-e )*'-(& o$ e''o'# e !o e''o' (& GPS.
A#e&%e o$ o"e& #!*&*'#
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CIVIL ENGINEERING APPLICATIONS
V(#*(*!(o& o$ ((&- )oe#.
Co!'%!(o& #(!e "*&&(&-.
Co!'%!(o& )*&*-e)e&!.
T'*(&(&-.
S#'$*%e (&$'*#!'%!'e 0(#*(*!(o&.
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CIVIL ENGINEERING APPLICATIONS
I"e%!(o.
D*)*-e *##e##)e&!#.
F*%((!5 )*&*-e)e&! *& ($e %5%e (&!e-'*!(o&.
;IM (&!e-'*!(o&.
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SU(SURFACE VISUALI)ATION
S#'$*%e $e*!'e# o0e'*( o& 'e*73o' 0(e3#.
Fe*!'e# (&%e
)*@o' -eoo-(%* #!'%!'e#.
-*# o' 3*!e' "("e73o'.
o&e# o$ %o&!*)(&*!e *&.
D(-(!*5 #!o'e (&$o')*!(o& 'e*(5 *%%e##(e !o $(e e&-(&ee'#.
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P'e#e&!*!(o& o$ *!* #(&- HMD#, L*"!o"#
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E>(#!(&- (-(!* )*"#, "o#(!(o& (&$o')*!(o& *& #'0e5 *!* )#! e (&!e-'*
Co!*&! o$$#e!# %*& e *%%o&!e $o' (& !he $(e.
Mo*' &*!'e o$ #5#!e) e&*e# #3(!%h(&- e!3ee& h(-h *& o3 *%%'*%5
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The "o##(e *""(%*!(o o$ * ##'$*%e 0(#*(*!(o& #5#!e) *'e (#!e
T'e&%h ("e%!(o& !*##
P*&&(&- *& "'e"*'*!(o& o$ (--(&- *%!(0(!(e# o& #(!e
V(#* -(*&%e 3h(e (--(&- Lo%*!(&- o$ *)*-e '(e %*e#
O&7#(!e 0e'($(%*!(o& o$ *##e!# "'o@e%!e *! !he o$$(%e
O&7#(!e %o''e%!(o& o$ e-*%5 *!*#e!#
A##(#!*&%e $o' o"e'*!(o& *& )*(&!e&*&%e 3o'#
Mo(e M*""(&-
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Vidente* An AR %$%tem !o# %u&%u#!a+e ,i%uai-ation
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Vi#tua ex+a,ation %.o/in" %u&%u#!a+e a%%et%
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INTEGRATION 0IT1 (UILDING
INFORMATION MODELLING 2(IM3
;((&- (&$o')*!(o& )oe(&- +;IM/ (# * #e! o$ (&!e'*%!(&- "o(%(e#, "'
!e%h&oo-(e# !h*! -e&e'*!e# * )e!hooo-5 !o )*&*-e !he e##e&!(* (
*& "'o@e%! *!* (& (-(!* $o')*! !h'o-ho! !he ((&-# ($e %5%e.
;IM %*& #!*'! 3(!h "*'*)e!'(% 4D %o)"!e'7*(e7e#(-& +CAD/ !e%h&o
"'o%e##e# !o e#(-& *& 'e"'e#e&! * $*%((!5.
. I! %*& *#o (&%o'"o'*!e 6D *& 9D ()e(o 3he'e 6D (&%e# * !()
*& 9D !()e7*#e %o#!#.
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Th'ee )e&!* *#"e%!# !h*! &ee !o e *'e##e 3he& *##e##(&- !he $e*#
AR $o' %o!'%!(o& 'e*!e 3o' "'o%e##e#:
I&$o')*!(o& #e*'%h(&- *& *%%e##(&-
'e*!e# !o ho3 (&$o')*!(o& (# o!*(&e.
A!!e&!(o& *o%*!(o&,
'e*!e# !o !he (#!'*%!(o& $'o) o!he' !*##.
Me)o'5,
'e*!e# !o #eo'5, #ho'!7!e') *& o&-7!e') )e)o'5 $&%!(o&.
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To e)o!'*!e ho3 ;IM *& AR %*& e (&!e-'*!e *& #e o&7#(!e
e>*)"e# !h*! $o%# o& !he $oo3(&- *'e*# *'e (#%##e:
I&!e'e"e&e&%5
Ie&!($(%*!(o& o$ !*# *& "'o%e## (&!e'e"e&e&%e 5 I&!e-'*!(
"'o@e%! *!* 3(!h(& * (-(!* e&0('o&)e&!.
S"*!(* #(!e *5o! %o(#(o& *&*5#(# *& )*&*-e)e&!
%o(#(o *'(#(&- '(&- !he %o!'%!(o& "'o%e## e !o !he %h
e''o'# %*& e *'e##e 5 'e!'(e0(&- *& 0(#*(#(&- *!* $'o) ;IM
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L(& (-(!* !o "h5#(%*
AR 0(#*(*!(o& %*& "'o0(e o&7#(!e "e'#o&&e 3(!h *& ()"'o0e
o$ %o!'%!(o& #ee&%(&-, 3h(%h 3( 'e%e !he (&%(e&%e o$ *
P'o@e%! %o&!'o
;e(&- *e !o 0(#*(e !he ($$e'e&%e e!3ee& *#7"*&&e *& *#7
e&*e# %''e&! *& $!'eB "'o-'e## !o e )o&(!o'e *& !he'e*""'o"'(*!e e%(#(o&7)*(&-.
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P'o%'e)e&!: )*!e'(* $o3 !'*%(&- *& )*&*-e)e&!
The (&$o')*!(o& "'o"*-*!e $'o) *& ERP #5#!e) (& !he "'o%!(o& $*%!o
%*& !he& e 0(#*(e o&7#(!e 3(!h AR.
Th(# 'e*7!()e e0**!(o& 3( "'o0(e * #(!e )*&*-e' 3(!h * 'e*7!()e 5
e&0('o&)e&!.
V(#*(*!(o& o$ e#(-& '(&- "'o%!(o&.
;IM *& AR %*& "'o0(e * $ 4D (&!e'*%!(0e #o( )oe
"'o0((&- #%o&!'*%!o'# 3(!h 0(#* &e'#!*&(&- o$ e!*(#.
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;IM INTEGRATION ITH AR
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COOPERATIVE REINFORCING (AR
ARRANGEMENT AND C1EC4ING SYST
Re(&$o'%(&- *' *''*&-e)e&! *& %he%(&- *'e 0e'5 ()"o'!*&! *# !he5 *'e
!o !he #!'e&-!h o$ * #!'%!'e.
I! (# o$!e& ($$(%! $o' (&e>"e'(e&%e 3o')e& !o 0(#*(e !he 'e(&$o'%(&-
*''*&-e)e&! *& #ee&%e (& !he(' )(&#.
I"e%!o'# o$!e& $(& (! ($$(%! !o %he% 3he!he' 'e(&$o'%(&- *'# *'e *'
%o''e%!5.
He&%e, * %oo"e'*!(0e e&-(&ee'(&- e&0('o&)e&! $o' 'e(&$o'%(&- *' *''*&-e)
*-)e&!e 'e*(!5 +AR/ (# "'o"o#e.
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M!("e 3o')e& 3e*' he* )o&!e (#"*5# +HMD#/ 3(!h 0(eo %*)
%o&&e%!e 3(!h !he(' %o)"!e'#.
The5 -'* *& )o0e )*'e'#, e*%h o$ 3h(%h (# (&e !o 4D )oe *!* o
*'#.
;5 #(&- *& AR !oo %*e AR Too(!, #e'# %*& 0(e3 !he 0('!* 'e(&$o'
'e"'e#e&!e 5 %o)"!e' -'*"h(%# o& !he(' HMD#. The5 %*& (#%## ho3 !o *''*&-e 'e(&$o'%(&- *'# 5 )o0(&- !he )*'e'#
4D 3o'.
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Coope#ati,e Rein!o#+in" (a# A##an"ement
Suppo#t
A %o*o'*!(0e #5#!e) 3he'e )!("e #e'# %*& )o0e !*&-(e )*'e'#
'e"'e#e&!# #(&-e o' * #e! o$ 'e(&$o'%(&- *'# (& *& *-)e&!e 'e*(!5 e&0
A "'o!o!5"e 3*# )*e *& !e#!e (& !he *o'*!o'5.
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Eperiment 1
A #e! o$ $(0e 'e(&$o'%(&- *'# %o)"'(#(&- * #e%!(o& o$ * "'e#!'e##e %o&%'e!
3*# #ee%!e. The #e%!(o& 3*# 'e"'e#e&!e 5 #(&- IFC7;RIDGE "'o%! )oe.
F(0e )*'e'#, A, ;, C, D, *& E, 3e'e #%*!!e'e o& !he !*e.
T3o -'**!e #!e&!# )*@o'(&- (& %(0( e&-(&ee'(&-, #()*!(&- 3o')e&
HMD# 3(!h 0(eo %*)e'*#.
The !3o 3o'e'# (#%##e #ee&%e o$ *''*&-(&- !he $(0e 'e(&$o'%(&- *'#
The5 ooe *! !he #*)e 4D 0('!* 'e(&$o'%(&- *'# $'o) ($$e'e&! *&-e#
)*&5 "o##(e #ee&%e#, )o0(&- !he )*'e'# (&!(!(0e5.
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Coope#ati,e #ein!o#+in" &a# a##an"ement u%in" ARSource: https://www.researchgate.net/publication/220!"#11$ %ooperati&e 'ein(orcing )ar Arrangement and %hec*ing b+ ,sing
Augmented 'ealit+
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Coope#ati,e Rein!o#+in" (a# C.e+5in"
Suppo#t
Re(&$o'%(&- *'# *'e 'e"'e#e&!e 5 IFC7;RIDGE *& (!# %o)"!e' -'*"
(&e 3(!h * )*'e'.
The )*'e' (# "*%e (& $'o&! o$ !he 'e(&$o'%(&- *'# *! (!# e#(-&*!e o%
3e*'(&- * HMD 3(!h * 0(eo %*)e'* ooe *! !he )*'e' *& !he 'e(&$o The #e' %*& %he% 3he!he' !he 'e(&$o'%(&- *'# *'e %o''e%!5 *''*&-e o
%he%(&- !he o0e'*""e %o)"!e' -'*"h(%# ()*-e o0e' !he *%!* 'e(&$o
o& !he HMD )o&(!o'#.
https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116
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Eperiment 2 : ndoor test
T3o #)* 3oo $'*)e# 3e'e %'*$!e.
O&e 3*# )*e @#! *# e#(-&e 3h(e !he o!he' 3*# )*e "oo'5 3(!h e''o ;o!h )oe# 3e'e %he%e 3(!h AR
Eperiment ": utdoor test
A "*'! o$ * "'e#!'e##e %o&%'e!e '(-e -('e' 3*# #ee%!e *& 3*# 'e"'e#e
;RIDGE "'o%! )oe.
I"e%!o' 3o'e !he HMD 3(!h * 0(eo %*)e'* *& ooe *! !he )*'e' *!!
'e(&$o'%(&- *'#.
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0ood Mode% O,e#apped /it. CG ima"e%Source: https://www.researchgate.net/publication/220!"#11$ %ooperati&e 'ein(orcing )ar Arrangement and %hec*ing b+ ,sing Augmented 'ealit+
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Rein!o#+ement +.e+5in" And AR Vie/ o! Rein!o#+ement +a"eSource: https://www.researchgate.net/publication/220!"#11$ %ooperati&e 'ein(orcing )ar Arrangement and %hec*ing b+ ,sing
Augmented 'ealit+
https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116
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'esults
E>"e'()e&! 1: The !e#! #ho3e !he e$$(%(e&%5 *& e$$e%!(0e&e## o$ !he #5#!!'*(!(o&* "e&%(7*&7e'*#e' )e!ho.
E>"e'()e&! 2 : The -oo %'*$! )oe 3*# o0e'*""e "'o"e'5 3(!h !he %o
()*-e, 3h(e !he "oo' )oe 3*# &o! o0e'*""e 3(!h !he 0('!* 'e(&$o'%(&
E>"e'()e&! 4: The'e 3*# &o! (- ($$e'e&%e e!3ee& !he 0('!* %o)"!e'
'e* 'e(&$o'%(&- *' ()*-e#. He&%e !he *%!* 'e(&$o'%(&- *'# %o e @
%o!'%!e
https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116https://www.researchgate.net/publication/220938116
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RAPID ASSESSMENT OF EART16UA4E
INDUCED (UILDING DAMAGE
A%%'*!e e0**!(o& o$ *)*-e ##!*(&e 5 ((&-# '(&- %*!*#!'o"h(
%'(!(%* !o e!e')(&e !he ((&-#B #*$e!5.
C''e&! "'*%!(%e# o$ e0**!(&- *)*-e !o ((&-# *$!e' %*!*#!'o"h(% e0e
(&!e(0e, !()e %o)(&- *& e''o' "'o&e.
The )*&"o3e' 'e('e $o' !he "'o%e## (# ##!*&!(* (& *'-e %(!(e#.
S#!*(&e ((&- *)*-e %*& e e0**!e 5 )e*#'(&- ($$e'e&%e# e
*-)e&!e *#e(&e ()*-e *& !he 'e* 0(e3.
%omputation o( 'esidual nterstor+ ri(t 'atios
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%omputation o( 'esidual nterstor+ ri(t 'atios
The (&!e'#!o'5 '($! '*!(o +IDR/ (# * -o* )e*#'e !h*! %*& e %o)"!e $
((&- ()e(o *& #e !o *&!($5 *)*-e.
The 'e#(* IDR (# * )e*#'e o$ ho3 $*' e*%h ((&- $oo' h*# )o0e "
'e*!(0e !o !he o&e e&e*!h (0(e 5 !he #!o'5 he(-h!.
The 'e#(* IDR *! e*%h $oo' o$ * ((&- %*& e )e*#'e #(&- * %o)"
*#e o& AR 5 %o)"*'(&- * *#e(&e ()*-e !o !he *%!* #h*"e o$ * #!'%!#e(#)(% e0e&!.
;5 %o)"*'(&- %o)"!e IDR# !o "'ee!e')(&e !h'e#ho#, * (% ! !h
*##e##)e&! o$ !he e0e o$ #!'%!'* *& &o&7#!'%!'* *)*-e %*& e )*
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escription o( Eperimental Setup
S"e%()e&: #e&e' $('e7'e(&$o'%e #!'%!'* %o&%'e!e 3*#.
D()e(o: 4,494 )) h(-h *& 1?2 )) !h(%.A *#e -('e' h*0(&- * 1?1? )) %'o## #e%!(o& *! * (#!*&%e o$
1,21 )) *3*5 $'o) !he 3*.
To" e*): 6?6? )) C
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C*)e'* %*"!'e# 0(eo o$ #"e%()e& e$o'e *& *$!e' o*(&-.
The %*)e'* 3*# o%*!e 6,2?= )) *o0e !he $oo' *& 6,8= )) *3*5 $'o
The %*)e'* %e*'5 $o%# o& !he "o(&! *o&- !he 3*B# e-e 3he'e ho'(o&
)e*#'e)e&!# 3e'e !o e !*e&.
The "o#(!(o& *& o'(e&!*!(o& o$ !he %*)e'* 3*# %o!*&! *! e*%h #!e" !h'o-
'*!(o& o$ !he e>"e'()e&!. A-)e&!e -'*"h(%# (# "*%e o0e' !he 0(eo *& !he '($! (# )e*#'e 5 %
&)e' o$ "(>e# (& *& ()*-e 3(!h ho'(o&!* (#!*&%e.
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O#e'0*!(o 3e'e )*e *! !he e-(&&(&- *& e& o$ !e& *%!*!o' o*(&-
#!5 !he "e'$o')*&%e o$ !he "'o"o#e AR !e%h&(e *! ($$e'e&! '($! e0
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D#i!t% Mea%u#ed U%in" U%e# Po%ition and O#ientation7
(a%ed T#a+5in"
oading Stro*emm
3easured dri(tmm
Actual ri(tmm
4 error
1 84 8 7=.2
2 86 ? 7.1
4 112 12? 7.=
6 14= 16 79.
9 1=1 18? 79.2
18? 12 7.1
= 21? 216 72.1
8 22? 24? 76.9
22 2 72.9
1? 2=9 284 72.8
'esults
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'esults
The e#! o#e'0*!(o& o$ '($! e!3ee& !he CAD ()*-e *& !he 3* o%%''e
S!'oe =, 3he'e * '($! o$ 21? )) 3*# o#e'0e
Th(# %o''e#"o&e !o *& *%!* (#"*%e)e&! o$ 216 )). The AR )e!ho !h
"'e(%!e !he '($! 5 2.1.
The 3o'#! o#e'0*!(o&, (.e., h(-he#! e''o' o%%''e $o' Lo*(&- S!'oe 1 3
3*# %o)"!e !o e 84 )) (& AR %o''e#"o&(&- !o *& *%!* (#"*%e)e&! I& * o#e'0*!(o, !he AR )e!ho &e' "'e(%!e !he *%!* ##!*(&e (#"
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O,e#,ie/ o! expe#imenta %etupSource : E&aluation o( Augmented 'ealit+ (or 'apid Assessment o( Earthua*e-nduced )uilding amage6
iet '. 8amat and Sheri( El-9awil
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CONCLUSION
The'e *'e &)e'o# o""o'!&(!(e# $o' (&!e-'*!(&- AR *& ()"'o0(&- %o&
)e!ho# #e (& !he $(e# o$ AEC
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CONCLUSION
AR 3*# *#o #e $o' ##'$*%e (&$'*#!'%!'e 0(#*(*!(o& 5 o0e'*""
*5o! o$ &e'-'o& (&$'*#!'%!'e o0e' !he 'e* 3o' (0e 0(eo# !h'o
A& AR *#e #5#!e) 3*# e0eo"e !o *##e## e*'!h*e (&%e
*)*-e#. I! 3*# $o& $e*#(e $o' (% *##e##)e&! o$ #!'%!'e# !h'o-
!e#!(&- #(&- #e' "o#(!o& *& o'(e&!*!(o& !'*%(&-.
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CONCLUSION
The )*(& *''(e'# !o !he *o"!(o& o$ AR !e%h&oo-(e# *'e
I))*!'e %o'e 0('!* 'e*(!5 !e%h&oo-5
Coe'0*!(0e &*!'e o$ %o!'%!(o& #(&e##e#
S(e o$ ((&- (&$o')*!(o& )oe#.
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REFERENCES
Se*#!@*& Me*, (-* T', M*!e0 Doe&% +2?19/, Me*#'(&- !he "o!e&!('e*(!5 (& %(0( e&-(&ee'(&-, A0*&%e# (& E&-(&ee'(&- So$!3*'e, ? +171?/
H&-7L(& Ch(, Sh(h7Ch&- K*&-, (*&- 5 *&- +2?14/, Re#e*'%h !'e&
o""o'!&(!(e# o$ *-)e&!e 'e*(!5 *""(%*!(o (& *'%h(!e%!'e, e&-(&ee'(&-
%o!'%!(o&, A!o)*!(o& (& Co!'%!(o&, 44 +117122/
(*&-5 *&-, M( Jeo&- K(), Pe!e' E.D. Lo0e, Sh(h7Ch&- K*&- +2?14/
Re*(!5 (& (! e&0('o&)e&!: C*##($(%*!(o& *& ()"(%*!(o $o' $!'e 'e#e
A!o)*!(o& (& Co!'%!(o&, 42 +1714/
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REFERENCES
No5o#h( Y*(1 *& h*&!*o L( +2??=/, Coo"e'*!(0e Re(&$o'%(&- ;
*& Che%(&- 5 U#(&- A-)e&!e Re*(!5, Co&$e'e&%e "*"e'
V(&ee! R. K*)*! *& She'($ E7T*3( +2??=/, E0**!(o& o$ A-)e&!e
R*"( A##e##)e&! o$ E*'!h*e7I&%e ;((&- D*)*-e, Jo'&* o$
%(0( e&-(&ee'(&-, ASCE.
333.3(("e(*.o'-
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8
T1AN4 YOU