ランドサット5号TMデータによるマングローブ林抽出のための閾値自動決定法の検討   :   An Examination on Automatic Determination of Threshold for Extraction of Mangrove Forest with TM Data of LANDSAT 5 

作成者 佐藤, 一紘
日本十進分類法 (NDC) 512.75, 519
内容 研究概要:We had suggested a mask process that separates three categories of land area, mangrove forest and waters from a mangrove area composed with the categories. And the procedure and a practical way had been examined to decide thresholds in order to avoid the misclassification and to prepare data sets for quantitative estimation of stand parameters on mangrove forest with TM data of Landsat 5. In this paper, an automatic determination method of the thresholds was examined to produce masks for extraction of individual categories. For the purpose, the Otsu's automatic threshold selection method was applied. For several ranges, searched threshold was compared. It was one or two of CCT count that the deference among searched thresholds in the rages suitably set. Therefore, the application of Otsu's method was proper for the determination of threshold to extract mangrove forest.
コンテンツの種類 研究報告書 Research Paper
DCMI資源タイプ text
ファイル形式 application/pdf
掲載誌情報 第2回CEReS環境リモートセンシングシンポジウム論文集 page.79-84 (1999)
言語 日本語

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