Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 
865 
Photointerpretation and orthophotograph at the study of monuments 
in urban areas 
E.Patmios 
Aristotle University of Thessaloniki, Greece 
ABSTRACT: Photogrammetry and Remote Sensing essentially contribute to all the faces of urban 
planning, because of the wealth of the metric and qualitative information which offer. Spe 
cially sensitive aspects many times come in the general considerations for civil areas. From 
this point of view, the preservation of the cultural inheritance in general, and especially 
in civil areas, they are of particular interest. Aspects as the above mentioned, are exami 
ned in this paper for the civil area of Thessaloniki, which interests a lot from the point 
of monuments and historic centers. The study is mainly based on photointerpretation and or- 
thophotogranh for relatively small scales and it is the preliminar stage for further efforts 
of Dhotogrammetric study of monuments of Thessaloniki. 
I. INTRODUCTION 
The study of monuments and historic centers 
is satisfactorily faced, among others, by 
photointerpretative and photogrammetric me 
thods . 
The study is done from various aspects and 
it may lead to considerations of a systema 
tic facing at which, beyond others, local 
particularities (amount and kind of monu 
ments, existing substructure etc.) are se 
riously taken in mind. (18). 
The photointerpretative study is usually 
a preliminar stage useful for the conception 
of the general physiognomy of the monument 
and historic center (5, 11, 13, 17). In ca 
ses of wide areas, which include an amount 
of monuments, the photointerpretative work 
may demand the creation of a suitable photo 
mosaic (7). Photointerpretation during the time 
attendance (4), exploitation of relatively 
small scale airphotographs for graphic res 
titution of limited accuracy (8) and simul 
taneous multiple ohotogrammetric exploita 
tion (graphic, numeric, photographic docu 
ments) (12) are aspects of particular inte 
rest according to the case. The preparation 
of a kind of an atlas of monuments and his 
toric centers, including stereoscopic pairs 
of airphotographs of different times, simple 
photogrammetric restitution preferably gra 
phic and relevant explanations, presents 
interest (6). Studies on special forms as 
castles, towers etc. (3), use of specific 
techniques as DTMs (16, 17) as well various 
terrestrial takings and restitutions (pho 
totheodolites, stereocameras, graphic-analy 
tical-photographic restitution, takings of 
totality, external faces, inside takings 
etc.) essentially offer to create archives 
of monuments and historic centers. (9, 10, 
II, 14). 
The study of monuments and historic cen 
ters in urban areas in connection with their 
wide urban surrounding (1, 2) is a characte 
ristic case. In this way the monument is not 
considered isolated from its surrounding. 
Several urban considerations, problems of ex 
cavation are simultaneously served and ge 
nerally efforts of preservation and surroun 
ding protection can be effectively served. 
The study of uses (Land Uses - Space Uses) 
is very important at such works. A combina 
tion of photointerpretative study of ortho 
photograph and of field control was examined 
(1, 2) and found effective. 
To continue the above experiences, we at 
tempt (Patmios E., Lasaridou M., Halkias Th., 
Farakou A.) a corresponding study on the ci 
ty of Thessaloniki, which includes a great 
amount of monuments and historic centers of 
different kind. In this paper some subjects 
from the first stage as photointerpretative 
study, use of orthophotograph, location of 
monuments, are presented. 
2 PHOTOINTERPRETATIVE STUDY, ORTHOPHOTO 
GRAPH, LOCATION OF MONUMENTS 
Airphotographs in scale 1:20000, taken in 
1978, on which stereoscopic study was done, 
were used for the study. Orthophotograph in 
scale 1:10000 was produced from the same air- 
nhotographs. Bibliographic study about the 
monuments of the city (19) and relevant lo 
cal information were done. Based on the abo 
ve, the following monuments were located at 
the orthophotograph (Fig. 1). 1 Byzantine 
Fortified Walls, 2 Trigonion or Alysos Tower, 
3 White Tower, 4 Heptapyrgion, 5 Roman Ago 
ra (Forum), 6 Rotonda, 7 Galerius Arch of 
triumph (Kamara), 8 Galerius Palace, 9 Octa 
gon Building, 10 Roman Hippodromos, 11 Saint 
Demetrius church, 12 Acheiropoietos church, 
13 Hagia Sophia church, 14 St. John's Bapti 
stry (Nymphaeum), 15 Panagia Chalkeon church, 
16 Holy Apostles church, 17 St. Catherine 
church, 18 Prophet Elias church, 19 St. Ni 
colaos Orphanos church, 20 Vlattades Mona 
stery, 21 Church of the Transfiguration of 
the Saviour, 22 St. Panteleimon church, 23 
Taxiarchae church, 24 Byzantine Bath House, 
25 Ypapanti church, 26 Panagouda church, 
27 St. Haralambos church, 28 St. Athanasios 
church, 29 St. Minas church, 30 St. Theodo 
ra church (Monastery), 31 St. Ypatius church 
(Panagia Dexia), 32 St. Constantine church, 
33 Nea Panagia church, 34 St. Laodigitria 
church, 35 St. Georgios church, 36 St. Gre 
gorios Palamas church (Metropolis), 37 Greek 
Consulate during the Turkish Occupation,