International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004 Interna
"reak-line : (xtracted Points
: Md®ed Points
Fig.15 Movement of Circumstance Points
After these processes, the TIN model was
constructed made using the curved point of the
circumference, the circumference (randomly
extracted), and the points inside the area (randomly
extracted).
4. UNIFICATION OF COORDINATE SYSTEM
BY MEASUREMENT RESULTS
In general, many lack of data which are caused by
blind parts are estimated from a measurement result.
Then, measurements at multiple places become
needed. Due to the lack of data, the authors have
been concentrating on developing visual traverse
system in topographic survey. In the visual
traverse system, coordinate systems for multiple
measurements were unified automatically.
Authors used the system to unify coordinate systems
in this paper.
5. 3D MMODELING USING MULTIPLE
MEASUREMENT RESULTS
3D Modeling for the "Megro residence" was
investigated in this paper as one of applications
using break-line. The Megro residence was
constructed in 1797 (about 200 years ago). The
house was the residence of “warimotoshoya”
(headman of the villages in this area), and the main
characteristic is the “chidorihafu” style in front roof
window which was used as a chimney and added
magnificence to the house. The house was
designated as national important cultural assets in
1971. Figure 16 presents 3D model obtained by
multiple measurement results. Followings are the
major contents for the measurement area.
eder A MEN
(b) Textured Model
Fig.16 3D model Obtained by Multiple
Measurement Results
* Target: Meguro Residence
* Measurement Area: 40m*40m
* Traverse Point: 8 points
* Length for Leg of Traverse:200m
+ Accuracy of Traverse: 1/8,300
6. CONCLUSION
The most remarkable points as results of this
approach are its ability to 3D modeling image often
give important information for historical
investigation.
As for further additional results of this investigation,
ability improvement of the curve point detection
using break line and utility of break-line to another
targets can be archived. Therefore, we'll continue
examination about automatic unification method of
coordinate systems and effective modeling method.
REFERENCES
1. HUAN Y-P, 1989, Triangular irregular network
generation and topographical modeling, Computer in
industry, pp.203-213
2. W.E.Laurensen, H.E.Cline,1987, Marching Cubes:
A High Resolution 3D Surface Construction
Algorithm, Proc. ACM SIGGRAPH '87,ACM
Press,163-169
3H. YOKOYAMA, .H.CHIKATSU,. 2003, 3D
Representation of Historical Structure for Digital
Archives by Laser Scanner, IAPRS, Vol. XXXIV,
Part 5/W 12,Ancona, Italy, pp. 347-350.
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