analytical plotter can not treat digital images directly. It is ancient architectures in Korea is that they had been
a disadvantage of this method that the form affected from Budddism which have encouraged for
transformation spends extra time and money, and causes defensing the mother country and wishing her peace
jew distortion of images. Therefore, i mS
e ag seu oan Bead that a The Suk-Gul-Am which is the oldest modelling structure
digital photogrametric system is better than an analytical cd
in the east Asia is the one of the. symbolitic structures
plotter to make topographic maps from digital
Tte related with Buddism.
Stereoscopic images.
An automatical DEM extraction method has been
developed on this PC-based digital photogrametric — The Suk-Gul-Am was constructed in 790 AD and has
system. Stereo conjugate points can be determined by gone through 3 major renovation constructions. This
stereo-matching using a personal computer. The errors indicates the importance of precise data for effective
of stereo-maiching, which are serious problems for reservation. The figure below shows the structure of
automatical DEM extraction and which are difficult to be Suk-Gul-Am. and the position ot -thé main. Buddha
avoided by present technology, can be checked and at
statue.
corrected easily in this system by using the 3D display
module. When observed through liquid shutter glasses,
correct points are positioned on the surface of a model
Jltural
'onnel of a mountain and error points are positioned in the air
ording or under the ground. These error points can be
corrected by the mouse easily.
The main features of this DEM extraction method are as
= follows.
digital
; (1)The most part of the work to extract DEM from
re basic : ‘
stereoscopic omages is executed automatically by a
personal computer.
e statue
Ph (2)The results of computer processing can be checked
> of the
and corrected using 3D display module in order to
anerated
get accurate final results.
ervatory.
(3)Positioning of ground control points in stereoscopic Z :
ata such : ; I a 4
2 images can be determined exactly by using the 3D Veni Lhd
ed 3 Ss
model of stereoscopic images on the 3D disply 3 Ss
module. » >
; A
: x
ae 3. Characteristics of Structures = a
ro 7
| in the and Results of Experiment
be get -
ly used.
M t e 3.1 Characteristics of Structures
because Fig 1 Structure of Suk-Gul-Am and the position of
3.1.1 Suk-Gul-Am : The most general characteristics of main Buddha statue.
611
International Archives of Photogrammetry and Remote Sensing. Vol. XXXI, Part B5. Vienna 1996
