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THE USE OF PANORAMIC IMAGES FOR 3-D ARCHAEOLOGICAL SURVEY
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Henrik Haggrén ^ *, Hanne Junnilainen * Jaakko Järvinen “, Terhi Nuutinen " Mika Lavento', Mika Huotari"
? Institute of. Photogrammetry and Remote Sensing, Helsinki University of Technology, FIN-02150 Espoo, Finland —
Henrik.Haggren(æhut fi, Hanne. Junnilainen@hut.fi, jjjarvin@cc.hut.fi, Terhi.Nuutinen@hut. fi
b University of Helsinki, Institute for Cultural Research, Department of Archaeology
Mika.Lavento@helsinki.fi, Mika.Huotari@helsinki. fi
Commission V, WG V/4
KEY WORDS: Panoramic images, archaeology, survey, photogrammetry, three-dimensional
ABSTRACT:
Panoramic images are efficiently used for documenting
developing the use of panoramic images for archaeological surv
Jordan. The primary motivation has been in developing a procedure for
arrage systems and terrace walls. Panoramic stereo photography has been
could be used for 3-D measuring of structural remains of b
applied for wide area documentation, and detailed structures are d
ol points. They are identified in field and measured with tacheometer.
book when identifying and documenting barrage systems and terrace
ost processing consists of orientation by bundle block adjustment, and of point
selected from photographic prints in order to be used as contr
In addition, archaeologists use prints as photogrammetric note
walls during their field invention. Photogrammetric p
wise 3-D measuring of identified structures. The procedure is experimented
cal survey is satisfactory. However, point wise interpretation of detailed structures leads to
he scattering is mainly caused by stereoscopic imaging geometry. Therefore we propose the use
panoramic imagery for archaeologi
scattered shapes. We consider that tl
of corresponding features instead of corresponding points when applying photo
measuring.
1. INTRODUCTION
1.1 Photogrammetric documentation in archaeological
survey
Photogrammetry is well-established ^ technology in
archaeological survey. Aerial vertical and oblique photography
provide both exact and detailed mappings for archaeological
analysis Satellite images are used for landscape analysis and
prospecting of archaeological sites. Close-range
photogrammetry is applied for documentation of excavations
and reconstruction of remains and findings. (Baturayoglu, 2001;
Wilson, 2000).
We consider here photogrammetric documentation being the
recording of 3-D scenery in the way that the images are
geometrically and geographically controlled. The control is
maintained for both internal and external references. The
internal geometry of the images, i.e. interior orientation, is
known by calibration and the external geometry, je. exterior
orientation, by geodetic control. Once these two references are
determined, the image content, i.e. the scenery, can be
transformed to any geographical or 3-D information system.
The extraordinary feature of photogrammetric documentation is
that the images as such can be used as necessary measuring tool
for an archaeologist during his field survey. We hypothesize
that the images, or in particular the prints provide not only an
instant base for sketches but also the reading and scaling rulers
for geographic measuring. All interpretations of the scene and
respective field notes become transformed to the same 3-D
coordinate system as the images are processed.
* Corresponding author.
archaeological sites and objects. In our paper we present a new approach in
ey. The work is part of the Finnish Jabal Haroun Project, in Petra,
field invention, in which photogrammetric documentation
ocumented with close up stereo images. Natural features are
and the results indicate that the accuracy of applying
grammetric documentation for 3-D structural
In this paper we declare and verify the hypothesis with one
example of archaeological survey. The motivation of the work
has been to provide the archaeologists an alternative method for
field surveys, which are now based on traditional geodetic
measuring tools, like on measuring tapes or tacheometers. These
are both time consuming and non-reversible, whereas
photogrammetric images - being geodetic as well — are fast.
timely, and complete, in recording and can be revived as
documents.
1.2 Finnish Jabal Haroun Project
This work is part of the Finnish Jabal Haroun Project, in Petra,
Jordan. Professor Jaakko Frôsén, Helsinki University, leads the
project and it takes care of the archaeological excavations,
conservation work and publication of the results at the Monastic
complex of St. Aaron and its environment (Frósén et al., 2002).
An essential part of the project is the archaeological survey
conducted in the near environs of the mountain. Institute of
Photogrammetry and Remote Sensing at Helsinki University of
Technology has participated in the project from the beginning,
1997.
Among the basic archaeological methods like photographing,
drawing and recording tracts and sites during the field seasons
have been tacheometer measurements and collection of digital
imagery. Beside this practical task, the research team has been
intensively developing photogrammetric documentation for
archacological survey purposes. (Koistinen, et al, 2002)
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