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Tecnologie assistive per beni culturali | Stefano Bertoldi | TEDxSiena


[Music]

Good evening, I’ll talk to you all tonight

precisely of the castle of Mirandola a

Royal archaeological route and a

attempt to virtual path

through the hills of the val di merse

the castle of milan duolo is a

medieval settlement that then

turns into a castle and an excavation

started in 2001 and continued until

2016 now we are starting to

design the whole phase of

enhancement of the context where it is

located in val di merse in the municipality of

chiusdino in a wonderful landscape

it’s a very difficult site

reachable but close to a point

very important from the point of view

tourist

or san galgano the abbey of san

galgano and montesiepi with its famous

sword in the rock is located at one

fifty kilometers from siena

precisely in the municipality of giustino but more

near the provincial border then

under the cicciano and montieri the foundation

of the settlement is dated in the course

of the seventh century and is linked to one

mining exploitation therefore for the

metallurgical resource extraction of iron

during the eighth century, yes

turns into an agricultural village with

two distinct foley of power that

basically they were functional

conservation and accumulation of foodstuffs

food a big change

will happen during the ix century with the

foundation of the multiss in which we say

it is detached from the main settlement

a well-defined area that among other things is

the highest of the hill where the

power is barrea and defends itself

from the outside by building a large one

moat and raising a fence

within this palisade itself

retain

those that are the most resources

important food but also iron and

all the wealth in the course

of the eleventh century

the site turns into a castle

so you start building in stone

a palace is built for a tower

where we say it was the residence

stately the church in stone and then

it is destroyed by the bishop of Volterra

between 1100 25 and 1.133 after which the

milan duolo’s story begins a slow one

escalation until abandonment

the excavation represented a moment

important of applied informatics

to archeology because from the first

moment we had one

experimentation of all software and

all applications to analyze and

disseminate data gis webgis database

alphanumeric photographic website

precisely to disseminate the data is

clearly one of the first pages of

facebook in particular, however, we are there

distinguished for the use of the laser

scanners and we have realized since 2004 e

the 2011 scan on almost the whole

hill where we had dug up to that

moment the real problem for contexts

stratigraphic as it may be

an archaeological excavation is that the laser

scanner generates too much information

billions of points but they have the

they basically also become

so redundant that and we have

thought is that perhaps photogrammetry

it was the element that was used more for

our case the origin of the

photogrammetry photogrammetry is born

from an application of stereoscopy is

a discovery theory in the nineteenth century and

a technique to realize the vision of

images and convey a feeling of

three-dimensionality and the source

the binocular view is inspiring

basically our eyes being

in two distinct positions they see the

objects in two different ways but what

see the eyes is not what succeeds

to process our brain and the

our brain gives us the illusion

feeling of seeing one

three-dimensional even where the eye

the single eye fails to

perceive the photogrammetry precisely

they are software that they do exactly

this takes a whole series of

many images around an object and

through in processing one

computer processing is successful

reconstruct a three-dimensional model

how does the software substantially that

It is very automated it manages to

recognize the various points of the object

then analyze frame for

frame and place them in space

both the objects and the points we see

both the position of the machine

photographically builds a cloud first

of points then all these points

individual then compose the second object

phase

triangulation of these points for

build a third phase surface

spread over this surface to us

we have a three-dimensional photograph

one of the projects that I think

and it went a lot in the direction that we

we want to travel was wastewater

web or should have been this project

substantially an enhancement of the

promotion through the creation of a

tourist route of the network

medieval water of Siena precisely i

booties then as was the process

the process was to scan

three-dimensionally by laser

scanner and photogrammetry these tunnels

and get them to travel to the surface from

from tourists through a mobile app i

fundamental elements of this project

and that I think they were definitely

avant-garde and worth it

to underline are four

substantially an enhancement of

peripheral paths within the

cities outside the places that all of us

we know and which are the two poles

main attraction points on stadiums

evening or the cathedral and piazza del campo

an enhancement of these assets

architectural and historical architectural

the abatement of aid for i

disabled people to succeed

travel these tunnels in some

so naturally they can not be

frequented and can be attended

also little by tourists

in short and then especially one

appreciation a sensitive

awareness of the themes of water

that in a city like Siena where not

there was no direct access to the sources

water was extremely important

so let’s just say the project yes

substantiated by the construction of these

models if dimensional is a

application that made you to run

on the current roads of Siena

path of these of these loot from the

from sources to the suburbs

basically so this is a bit

it was also a point of

departure and a best practice for us the

work that even in these days e

we are just doing is bringing the

three-dimensional relief must be a

po the flywheel for the enhancement

of the site

so we are taking pictures of

all the objects up the palaces walls

houses etcetera etcetera to rebuild i

three-dimensional models

besides this we are doing flights

above the hill with a drone to have

the digital model of the terrain and therefore

the state the current state of the whole

hill precisely through the reaction

before a new cloud of points then

of a match and finally of a texture

photo of an image point if

dimensional that c

this can be offered to us

result

what is important besides

to the aspect of the relief of fersen is that

in reality it is this

this is this software these these

applications can be the basis of

departure for model building

of models interpreted in some way

then of three-dimensional reconstructions

because one of the great problems

of archeology in general

now overcoming we are a little easier

because we have big walls we have

the walls wear her furiously

so let’s say the perception of the tourist

somehow manages to seize the

greatness of the structures but in many

other contexts

this thing escapes we can not

understand why we often have in it too

earth and so it is very much

imperceptible instead through the

reconstructions we can transmit to

visitor however the feeling of

what was to be the settlement

in life of what

we have excavated what we do

we understand and what we do

we have identified basically it is

an experience but it does not have to be

the final experience because we are here

I realized this a bit at the university

after the first the enthusiasm of the

three-dimensional 3d graphics yes

realized that it is actually

a very good impacting experience but

which has the physical limit of diverging

From reality

that is, if it reaches a certain point where

you prefer to look at the 3d model not

visit the archaeological site the

monument because as much as it says but me

I look at it at the computer and I do not have any

kind of problem is actually a way

to dissociate reality and say aspects

virtual

a solution could be that of

to realize real and virtual paths

together the tool we thought

and what we say is a lot

used in this period is the

virtual reality is a viewer that you

puts before his eyes in his

more generation in its application

simpler and with a cell phone that you

that s puts just inside of

this mask I turning the head to

360 degrees that you can see the environment

around you as if it were positioned

inside the monument or the excavation

archaeological and look at all that

you have

let’s just say around you that you can

see then you can see through

also maybe some reconstructions this

it’s a way to be to merge

together the two realities is a bit that

that they are trying to do for example

Rome at the Colosseum in which there are gods

precise points where you can

wear the mask and then see

that what you see even without the

too mask the mask the see

then rebuilt when the colosseum

he was alive so a feeling is in

some way that blends the two realities

that manages to enhance the result of

all the historical process that has brought

to the discovery of archaeologists but also

all the historical process of life

of the monument and

Item

all this consider that it has gods

relatively low costs and this is

a very important thing too

because we say what we want to do

is developing new economic paths and

new spaces for research

I believe that archaeological research development

informed or should go in

direction to favor

fruition research but above the communities

and territories but above all a development

economic that passes through institutions

public that are often owners of the

private company assets and we say it

entrepreneurs cultural operators who

can collaborate within the

construction of these new areas of

these archaeological parks but also

also other development of monuments

etc. and so on

why the real challenge is not

to create a beautiful model

three-dimensional or relief

photogrammetric what we must

to do is to demonstrate to Julio Tremonti and to

baracco but obama just to mention two that

they uttered these words that we

or with culture we do not want to eat

we want to develop the Italian pil

this is the real challenge because

the opportunity there is one above all is

the art bonus that somehow

therefore we know an important challenge

a decisive challenge for the country is

a game where Italy must invest and

that can win but the big risk is

that here or you win or die

Thanks for the attention

[Applause]

[Music]

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