書誌事項
- タイトル別名
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- The Analysis of Forest Crowns by Determining Same Color Regions in Aerial Photograph Images of a Northern Kyushu Satoyama Rural Forest
- クウサツガゾウ ノ ドウシツ リョウイキ ハンテイ ニ ヨル キュウシュウ ホクブ サトヤマリン ノ ジュカン チュウシュツ ニ カンスル ケンキュウ
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This paper attempts to extract data for forest crowns analysis by the determining same color regions method of image processing. For the analysis of crown size aerial photographic RGB images of broad leaved forest, also of Cryptomeria japonica and Chamaecyparis obtuse forest, of a Northern Kyushu Satoyama Rural Forest were utilized. The Image color distribution was used as an image feature. At first, the circle was calculating at every pixel less than the range of the determined standard value (h) of the color. Next, diffuseness information such as shadow areas and overlapping circles were eliminated from images. Remaining dot images were the processing data for the crown. In each of the research plot, verification data of crown width and number was ascertained by observations, and then compared with processed data. As a result, broad leave forest was determined have the best accuracy for extracting crown width at h: 40, and Cryptomeria japonica and Chamaecyparis obtuse forests were h: 15 to 20. However crown numbers were counted at less than 50% of the original images, because of the characteristics of this image processing method.
収録刊行物
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- ランドスケープ研究
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ランドスケープ研究 66 (5), 499-502, 2003
公益社団法人 日本造園学会
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詳細情報 詳細情報について
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- CRID
- 1390001205669720448
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- NII論文ID
- 110004308022
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- NII書誌ID
- AN10455955
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- ISSN
- 13484559
- 13408984
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- HANDLE
- 10091/3387
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- NDL書誌ID
- 6590026
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可