2013 Fiscal Year Final Research Report
Automatic classification of sidescan sonar image for mapping aquatic macrophyte distribution
| Project/Area Number |
23710039
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental impact assessment/Environmental policy
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| Research Institution | Hokkaido University |
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Principal Investigator |
YAMADA Hiroyuki 北海道大学, (連合)農学研究科(研究院), 講師 (10374620)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 影響評価手法 / 水生植物 / 画像解析 / サイドスキャンソナー / リモートセンシング / 生態系保全 / フェノロジー / マリモ |
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| Research Abstract |
Many aquatic macrophytes have been endangered. Therefore, it is necessary to develop the monitoring techniques urgently. In this study, a classification technique using sidescan sonar images (backscattering strength) was developed for mapping of the macrophyte distribution. As a result of various classifications, it was found that accurate classification was provided by difference of backscatter strength between seasons which was indicating the macrophytes phenology. It was considered that the accurate monitoring of aquatic macrophyte in a wide area was enabled by the classification technique.
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[Remarks] 山田浩之・水上圭三,浚渫実験区における水位・水質の変化,第3回宮島沼研究発表会,札幌, 2014年2月.
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[Remarks] 平澤孝介・山田浩之,水鳥排泄物が泥炭地湖沼水の化学性に及ぼす影響―排泄物の溶出特性-,第2回宮島沼研究発表会,札幌, 2013年3月.
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[Remarks] 山田浩之・横山諒・海津裕 ,宮島沼の水環境動態-水環境空間情報の取得-, みんなでマガンを数える会25周年記念誌, 2012年.
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[Remarks] 上谷祥利・山田浩之,水位の長期的な変動と湖底地形から見たマリモの分布域・消滅水域の特徴,マリモと阿寒湖の自然調査報告会,釧路市, 2012年2月.
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[Remarks] 山田浩之,ソナーや水中カメラから見たシュリコマベツ湾の植生・湖底環境,マリモと阿寒湖の自然調査報告会,釧路市, 2012年2月.
