| Project/Area Number |
01890012
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B).
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| Allocation Type | Single-year Grants |
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| Research Field |
広領域
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| Research Institution | Toyama National College of Technology |
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Principal Investigator |
MURAMOTO Ken-ichiro Toyama National Col. Tech., Dept. Electrical Engi., Associate Prof., 電気工学科, 助教授 (70042835)
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| Co-Investigator(Kenkyū-buntansha) |
SHIINA Toru Toyama National Col. Tech., Dept. Electrical Engi., Assistant, 電気工学科, 助手 (80196344)
KAWAHIRA Kohji Toyama National Col. Tech., Dept. Liberal Arts, Prof., 一般科目, 教授 (30025457)
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| Project Period (FY) |
1989 – 1990
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| Project Status |
Completed (Fiscal Year 1990)
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| Budget Amount *help |
¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 1990: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1989: ¥1,400,000 (Direct Cost: ¥1,400,000)
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| Keywords | Snowflake / Image processor / Database / 降雪 |
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| Research Abstract |
We developed a system which automatically measures simultaneously the distribution and falling velocity of snowflakes over a long period of time. This system is composed of three main parts : a tower, a TV camera (input) and an image processor. Using a TV camera, snowflakes were put into four image memories of an image processor continuously every 1/30 sec.
The binarization, detection of the snowflakes, and the calculation of their sizes and falling velocites were processed by a personal computer. These were determined in each image by the length of a dot given from the observed space and resolution.
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