Naoko Kosaka

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— This paper proposes fusion analysis of high-resolution multispectral and panchromatic satellite imageries for forest type classification. We have shown the performance of forest type classification using panchromatic and multispectral high-resolution QuickBird satellite imageries separately. With texture features obtained from a panchromatic imagery,(More)
— In agricultural fields, the damage caused by salinized winds is crucial for crops. In order to minimize the damage, it is required to detect the damaged areas and enact the proper procedures in order to save the damaged fields immediately after the disaster. In this paper, we propose indices that can indicate the degree of salt-breezed damages in the(More)
In this paper, we propose a new method of estimating pure spectra and the mixture ratio by applying the Independent Component Analysis (ICA) to the agricultural remote sensing images for recognizing fine structure vegetation change on farmland, where the covering plant is unknown. This technique enables to separate the change of vegetation into qualitative(More)
—In this paper we propose a new method for estimating the degree of salt-damage over a widespread area using SPOT5 satellite images. In the method, the paddy field pixel data are normalized and plotted in the spectral feature space of NDVI (Normalized Differential Vegetation Index) and NDGI (Normalized Differential Green Index). In the feature space, normal(More)
In this study, optical remote sensing data were used for leaf area index (LAI) estimation. The LAI is an important measure to increase the yield and adjust the quantity of manure. LAI extracted from remotely sensed data may contribute to grasp the yield of rice at an early stage. Therefore, the purpose of this study is to estimate the LAI through remote(More)
Improving mapping accuracy is of primary interest in satellite remote sensing, especially when dealing with coastal areas, as underwater mapping remains a challenge. Radiometric correction is a key driver for accuracy and this process is generally closely related to the Lyzenga's optical model, which tries to explain mathematically the relation between(More)
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