Figure 1. The 3D model of the M Consagra, are a donation of the patrons Carl
Bilotti. The 3D model has been used representation and animation.
An urban open-air museum is a peculiar sit of art are surrounded by buildings; the size,
of buildings contributes to create the mus fusion of the works of art and of the surrou
For this reason, the surveying cannot be lim art, but it must regard a portion of the city,
squares, the single buildings and finally the s 2.3
The Statues
Two statues are taken into account: the firs Sila, which author is Mimmo Rotella, i
characterized by flat surfaces; the second on the Dragon by Salvador Dalì, is character
bronze and brass, which allowed to differen way St. George, the horse and the dragon.
Figure 2. The Wolf of Sila e M.A.B.
Carlo Bilotti and Enzo d for documentation,
site, where the works ze, shape and textures
useum, which is the rounding architecture.
imited to the works of ity, the streets and the
e statues. first one, the Wolf of
, is a marble object, one, St. George and
terized by the use of rentiate in a particular
Sila The Wolf of Sila has been realiz
dimensions lenght, width and heig the statue and 180x88x 17 cm for
to the artist during one of his holid at the request of the collector Enz
wooden prototype, shortly before h specimen final product would be in
The animal, symbol of the city, while howling. Its simple and line
the physical features of the beast, be a movement path made with
curves. It is a work that shows no socio-anthropological value, identif
The statuary group of St. Georg realized by using league of bro
dimensions of the group are 120x are 136x82x8 cm.
St. George rides his horse and w caught between the paws of the hor
the main scene, a small female f saved. It is a sculpture that bl
subjects the Holy One, his horse movement that refers to the Christ
George and the saint is depicted w the dummies of de Chirico. The f
immortality, because its function i the character who stabs him is a m
possession of such immortality by d
Figure 3. St. George Looking at the composition it can
bronze changes in the various plans level lacked any glimmer of ligh
figure that destroys the dragon.
3. SURVEYING AND DA
In order to represent a large and c several models, having different
alized with green marble. The eight are 147x38.5x120 cm for
or the basement. The idea came lidays in the mountains of Sila,
nzo Bilotti. Rotella created the e his death, and decided that the
in green marble. ty, is represented by the artist
linear in shape, completely lack st, but the whole body seems to
th engraved lines and sinuous not only artistic merit, but also
ntification of cultural roots. rge and the Dragon has been
bronze and brass alloy. The 20x76x148 cm, the bases ones
with a spear hits the dragon, horse in the background, behind
e figure is the princess who is blends wonderfully the three
se and the Dragon in a plastic ristian tradition of the life of St.
without a face, as if to remind e flying dragon is a symbol of
n is to transport the immortals, mysterious creature who takes
y defeating the fair.
ge and the Dragon an be seen that the color of the
ans to scale it up, as if the lower ght that, instead, shines in the
DATA PROCESSING
d complex site like the M.A.B., nt Level Of Details must be
This contribution has been peer-reviewed. The peer-review was conducted on the basis of the abstract 68
created. For this aim different methodologies has been used, based on classical surveying total stations and GNSS, image
data aerial and close range photogrammetry, range data aerial LIDAR, Time of Flight based Terrestrial Laser Scanner,
Triangulation Laser Scanner. The building facades, the paving and the whole open-air
museum have been surveyed with a Time of Flight Laser Scanner, in order to optimize the time needed for the data
acquisition and processing. To obtain the surfaces of the statues, shielded during the
acquisitions, two different types of laser scanners have been used: the Leica Scan Station C10, based on time of flight, and
the Minolta VIVID 300 triangulation scanner see Table 1. For every statue, the 3D models have been obtained by using three
scans of C10, while 60 scans have been necessary to obtain the model using the VIVID 300.
Figure 4. The positioning of the Vivid 300 before the shadowing of the statue
The data processing has been performed by using commercial programs Rapidform
TM
, Geomagic Studio 12
TM
. In order to compare the performances of T.O.F. and Triangulation
scanners, the same operations have been made, and several nurbs interpolating the point clouds have been obtained. The
comparison has been performed taking into account the statistics generated by the used programs.
VIVID 300 C10
Sampled points 200
x 200
pointsshot Up
to 50,000
pointssec Accuracy
0.45 to 1 mm 4 mm
Spacing between points
da 0.95 a 1.91 mm
1 mm Min Max range 55 to 120 cm
0.1 to 300 m Min Max Field
of View 185 395 mm
Max 360° Horizontal
270° Vertical Table 1. Vivid 300 Minolta and Leica C10 characteristics
4. TEST RESULTS
