| Author | Nagai, Masahiko |
| Call Number | AIT Thesis no.SR-01-07 |
| Subject(s) | Volcanic activity prediction--Remote sensing
|
| Note | A thesis submitted in partial fulfillment of the requirements
for the degree of Master of Science, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Mapping of volcanic activities during eruption is very important to monitor their behavior
such as lava flow, pyroclastic flow, mud flow, and so on. Eruption events are usually of
short duration. It is very important to obtain information of volcanic phenomenon or
damaged area on real time basis in order to predict and prevent calamity that is caused by
volcanic eruptions.
In this study, a ground fixed single digital camera is used. An automatic mapping system is
designed for real time monitoring. This system concurrently produces orthophotos as final
out put from digital landscape image. Once a digital landscape image is obtained, a final
output is provided concurrently with volcanic activity. A digital photo is rectified onto 3D
computer graphics to obtain texture image with fixed location and attitude. This 3D
computer graphics is a created from DEM and this is used as reference image. Rectification
is done by skyline matching between edge of digital landscape image and edge of 3D
computer graphics. Then, the rectified digital landscape image is converted to a orthophoto
map using DEM
Through this system, volcanic activity is automatically mapped as orthophoto on real time.
This system helps chronological change analysis of volcanic activity, especially for sh01i
period of time series. Volcanic activities which are mapped by this system would be
analyzed by volcanologists to help people escape from hazards in case of volcanic
eruption. |
| Year | 2001 |
| Type | Thesis |
| School | School of Advanced Technologies (SAT) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Space Technology Application and Research (SR) |
| Chairperson(s) | Honda, Kiyoshi; |
| Examination Committee(s) | Chen, Xiaoyong ;Tokunaga, Mitsuharu ;Borne, Frederic ;Murai, Shunji |
| Degree | Thesis (M. Sc.) - Asian Institute of Technology, 2001 |