INTEGRATION OF CLOSE RANGE PHOTOGRAMMETRY AND TOPOGRAPHIC 
MEASUREMENTS TO GET THE TRIDIMENSIONAL MODEL OF COMPLEX 
SCULPTURE. 
M. Martín 3 , F.J. Iglesias 3 , H. Rodrigo 3 , S. Hernández 3 
3 University of Las Palmas de G. C., Campus de Tafira, 35017 Las Palmas de G.C., Spain - (mmartin, figlesias, 
hrodrigo, shernandez)@dcegi.ulpgc.es 
KEY WORDS: Cultural Heritage, Close Range photogrammetry, 3D model 
ABSTRACT: 
Work criteria from graphic representations of sculptures are established for their conservation and preservation. Sculptures with a 
complicated geometry make, sometimes, difficult or impossible to obtain the enough photographs to generate a complete three- 
dimensional (3D) model. The versatility of the measuring stations without prisms or miniprisms complements the classical 
photogrametric, topographic measurements, simplifying the enough tasks, so as to model the sculpture. The resultant geometric 
model can be covered with the projected texture of the original photographs. In this way, the 3D model presents a wholly real look. 
This model is transformed to the VRML (Virtual Reality Modelling Language) data format, in order to visualise it in Internet, 
allowing to add a complementary data of the sculpture. 
In this paper, there is developed the methodology used in the integration of photogrametric, topographic measurements in order to 
model, in 3D way, a sculpture placed in an important square of Las Palmas de Gran Canaria. Eventually, the results, the advantages, 
the difficulties, as well as the method limitations are analysed. 
1. INTRODUCTION 
The cultural patrimony of a town is irreplaceable, but due to the 
complexity of some pieces or to the technology of the epoch 
they have lost a great quantity of sculptures. 
Vitorio Macha's sculpture was placed in the year 1909 at Plaza 
de la Feria. The statue was homage to Benito Pérez Galdós. The 
statue deteriorates due to the exposition to the sea. Changing 
over in 1969 for other. 
Figure 1. Vitorio Macho's sculpture acting for Galdós 
The statue right now is deteriorating due to the action of the 
sea, as well as to painted. It is for it that to avoid the same loss 
of her, it has been reconstructed in a model 3D. 
As we can observe in the Image 2 the statue he has a great 
complexity of forms. This motive impedes that the obtaining of 
the model 3D be obtained only with technical photogrametric. 
Figure 2. current Statue of Benito Pérez Galdós 
2. DESCRIPTION OF THE WORK 
The objectives of work are the obtaining of a mesh to scale 
1:100 of the Monument to D. Benito Pérez Galdós, of the 
Sculptor Pablo Serrano placed at La Plaza de la Feria. 
The sculpture has a height brought near of 2,9 m and a diameter 
of 2,3 meters. 
For it we will utilize so much I eat technical photogrammetric 
and topographic for the detection of hidden zones of the same.