書誌事項
- タイトル別名
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- Studies on the extraction of human skin using spectral information in shortwave infrared band
- タンハチョウ セキガイ リョウイキ スペクトル ジョウホウ オ モチイタ ヒトハダ リョウイキ チュウシュツ ニ カンスル ケンキュウ
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Recently, there were various disasters such as Katrina flood, seismic wave in Sumatra, great earthquake in several countries. Inthese disasters, it has become one of the most important rescue activities to detect quickly the victims. If automatic detection of these victims in vast disaster fields is feasible, searching efficiency will be improved spectacularly in comparison with traditional visual search from aircrafts. In this paper, we propose Normalized Difference Human Index (NDHI) in order to extract human images out of various background objects efficiently. For the NDHI, we examine spectral characteristics of the human skin in short wave infrared band, and chose the best wavelengths for its calculation. For marine peril or water disasters, we have conducted experiments with human extraction in and out of the mud water using NDHI. In order to extract objects in the mud water, it is necessary to calculate the threshold operation on the reflectance of 1070nm wavelength as preprocessing of NDHI. In addition, we examined allowable water depth to extract objects for each transparency (intermediate-water, 40, 20, 10cm) . Finally, comparable studies with the conventional thermography measurements were also carried out.
収録刊行物
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- 写真測量とリモートセンシング
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写真測量とリモートセンシング 46 (2), 17-26, 2007
一般社団法人 日本写真測量学会
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詳細情報 詳細情報について
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- CRID
- 1390282679054204544
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- NII論文ID
- 10024353551
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- NII書誌ID
- AN00111450
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- ISSN
- 18839061
- 02855844
- http://id.crossref.org/issn/02855844
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- NDL書誌ID
- 8819627
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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
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可