巻号一覧
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35 巻, 1 号
選択された号の論文の11件中1～11を表示しています
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新藤 静夫1996 年 35 巻 1 号 p. 1
発行日: 1996/02/29
公開日: 2010/03/19
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竹内 章司1996 年 35 巻 1 号 p. 2-3
発行日: 1996/02/29
公開日: 2010/03/19
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1996 年 35 巻 1 号 p. 4-26
発行日: 1996/02/29
公開日: 2010/03/19
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張 立堅, 星 仰1996 年 35 巻 1 号 p. 27-35
発行日: 1996/02/29
公開日: 2010/03/19
ジャーナル フリーThe multi-layer perceptron type artificial neural network model (MLP model) has been applied as a classifier in various classification fields, including remote sensing application. The back-propagation learning algorithm is widely employed in the MLP model as a simple learning algorithm. This algorithm, however, may lead to an unstable state of learning process, or take a lot of learning time in the learning process, if the learning rate is selected improperly. In this paper, a new learning rate institution equation is proposed for selecting of proper learning rate when the MLP model is employed in the classification of remote sensing satellite image data. At this time, a large scale training set is usually employed for learning of MLP model. Using the proposed institution equation, the learning rate is able to be directly determined by the training set size (number of training samples) and the network size (number of nodes) . At the same time, it guarantees that the learning process of MLP model is convergent. The proposed learning rate institution equation is more practical than conventional institution equations. The latter is often accompanied with a number of experiments, to obtain a proper learning rate. Using the proposed learning rate institution equation, not only a faster convergence is yielded but also a smaller error is obtained. To inspect the efficiency of proposed equation, two different size training sets are learned by two different MLP models respectively for the classification of multispectral image data.抄録全体を表示PDF形式でダウンロード (3549K) -
小熊 宏之, 山形 与志樹1996 年 35 巻 1 号 p. 36-45
発行日: 1996/02/29
公開日: 2010/03/19
ジャーナル フリーIn this study, the number of effective spectral bands and the band combinations were selected to classify the wetland vegetation types using airborne multi spectral scanner data acquired over the Kushiro Mire in June 1992 and August 1993.
Effective spectral bands were selected : from June data, from August data, and from data of both months combind. In the method of this process, Jeffries-Matushita (JM) distance was used as a separability measure for 10 wetland vegetation types. Based on the results obtained from these cases, the first three selected effective bands were almost the same : near infrared band (820 to 900nm) which is sensitive to biomass, and two shortwave infrared bands (1520 to 1720nm and 2060 to 2450nm) which are sensitive to water content. To determin the number of effective spectral bands, training sample data were classified by the maximum likelihood method using the selected band combinations. The best classification accuracy was attained by using the 9 bands from combined data.抄録全体を表示PDF形式でダウンロード (3970K) -
横山 大, 波多野 勝弘, 近津 博文1996 年 35 巻 1 号 p. 46-51
発行日: 1996/02/29
公開日: 2010/03/19
ジャーナル フリーMany archeological sites are excavated yearly in JAPAN. At 1994, they were over 8, 000. It can be easily conjectured that archeological artifacts (e. g. Jomon and Yayoi property) of dig out from these sites are so much. Nevertheless, they must be drawn to detailed picture by archeologists themselves and part-timers, expending a great deal of time, labor and skills.
In order to labor saving, the large format still camera or CCD camera are expected to become a useful tools in taking ortho photos. However, an ortho photo which are obtained from these system are only 2 dimensional image. Then, the authors concentrated to develop the new system which can be recorded of 3 dimensional information for. archeological artifacts抄録全体を表示PDF形式でダウンロード (2095K) -
山口 靖1996 年 35 巻 1 号 p. 52-57
発行日: 1996/02/29
公開日: 2010/03/19
ジャーナル フリーAdvanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is a multi-spectral imaging radiometer to be launched on NASA's Earth Observing System AM-1 (EOS AM-1) platform in 1998. ASTER has 3 spectral bands in the VNIR, 6 bands in the SWIR, and 5 bands in the TIR regions with 15, 30, and 90 m ground resolution respectively. The primary science objective of the ASTER mission is to improve understanding of the local- and regional-scale processes occurring on or near the Earth's surface and lower atmosphere, including surface-atmosphere interactions.抄録全体を表示PDF形式でダウンロード (3771K) -
Nguyen Ngoc Thach1996 年 35 巻 1 号 p. 58-61
発行日: 1996/02/29
公開日: 2010/03/19
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岡本 晴人1996 年 35 巻 1 号 p. 62-63
発行日: 1996/02/29
公開日: 2010/03/19
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鹿田 正昭1996 年 35 巻 1 号 p. 64-65
発行日: 1996/02/29
公開日: 2010/03/19
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須崎 純一1996 年 35 巻 1 号 p. 66
発行日: 1996/02/29
公開日: 2010/03/19
ジャーナル フリーPDF形式でダウンロード (2004K)
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