著者
矢来 博司 小林 知勝 森下 遊 山田 晋也 三浦 優司 和田 弘人 仲井 博之 山中 雅之 攪上 泰亮 上芝 晴香
出版者
一般社団法人 日本写真測量学会
雑誌
写真測量とリモートセンシング
巻号頁・発行日
vol.55, no.1, pp.6-11, 2016
被引用文献数
2

噴火に伴う被害の軽減のためには,火山活動のモニタリングが重要である。近年,地殻変動の空間分布を詳細に把握できる利点から,SARを搭載する「だいち2号」の活用が期待されている。この「だいち2号」の干渉SARにより,箱根山や桜島などで火山活動の活発化に伴う地殻変動が捉えられた。箱根山では大涌谷で地殻変動が検出され,継続的な観測により変動の推移が捉えられた。桜島では,捉えられた地殻変動から昭和火口の直下へのマグマ貫入が推定された。これらの情報は火山噴火予知連絡会などに報告され,評価に活用されている。
著者
横山 隆三 白沢 道生 菊池 祐
出版者
一般社団法人 日本写真測量学会
雑誌
写真測量とリモートセンシング (ISSN:02855844)
巻号頁・発行日
vol.38, no.4, pp.26-34, 1999-09-02 (Released:2010-03-19)
参考文献数
9
被引用文献数
17 19

Overground-openness and undergroundopenness are defined for a grid point on digital elevation models. The former is a characteristic quantity to describe sky extent over the point within a distance L and takes large values for convex landf orms. The latter is to describe underground extent and takes large values for concave landforms. These concepts are applied to 50m-mesh digital elevation model of Mt. Iwate to make openness maps of L=5km and L=0.5km. The maps were found useful to represent topographical features such as the lines of ridge and valley.
著者
得丸 公明
出版者
一般社団法人 日本写真測量学会
雑誌
写真測量とリモートセンシング (ISSN:02855844)
巻号頁・発行日
vol.53, no.6, pp.269-273, 2015 (Released:2016-01-01)
参考文献数
9

To date, there has been not a single hypothesis for the birth of Moon. The author got an idea of the Kalahari Impact Hypothesis for the birth of Moon in January 2014. According to the hypothesis, after the Morokweng Meteorite Impact of 145ma (million years ago), the Moon was discharged as magmatic jet plume ejection from the Kalahari. In the following, he explains how it was conceived and how it developed during the year, so that the following researchers can correct and go beyond it. The hypothesis refutes so-called the Plate Theory, and supports the Goodness of Human Nature, as both the Moon and the Human were born at the same impact site.
著者
布施 孝志 永良 慶太
出版者
一般社団法人 日本写真測量学会
雑誌
写真測量とリモートセンシング (ISSN:02855844)
巻号頁・発行日
vol.53, no.5, pp.205-212, 2014 (Released:2015-11-01)
参考文献数
15

With increasing widespread use of three-dimensional data, the demand for simplified data acquisition is also increasing. The range camera, which is a simplified sensor, can acquire a dense-range image in a single shot ; however, its measuring coverage is narrow and its measuring accuracy is limited. We had overcome the former drawback by registering sequential range images. This method, however, assumes that the point cloud is error-free. In this paper, we have developed an integration method for sequential range images with error adjustment of the point cloud. The proposed method consists of ICP (Iterative Closest Point) algorithm and self-calibration bundle adjustment. The ICP algorithm is considered an initial specification for the bundle adjustment. By applying the bundle adjustment, coordinates of the point cloud are modified and the camera poses are updated. Through experimentation on real data, the significance of the proposed method has been confirmed.
著者
西村 正三 原 健司 木本 啓介 松田 浩
出版者
一般社団法人 日本写真測量学会
雑誌
写真測量とリモートセンシング (ISSN:02855844)
巻号頁・発行日
vol.51, no.1, pp.46-53, 2012-03-09 (Released:2013-03-01)
参考文献数
13
被引用文献数
2 4

In this paper, we discussed about As build data measured with 3D laser scanner, and the application of it. We measured one of the industrial heritages “Gunkan-Island” which the collapse is advanced. We carried out a rendering of point clouds as a sphere. That picture has the texture information such as pictures to add the shading in the pillars, beams and damaged part. So we can support to make damaged plans by using the rendered pictures. We solved that the width of cracks below resolving power of the photograph taken with the digital camera, has a correlation between the numerical data of features and the distribution width of colors. We created the index which Crack Index is “the numerical data of features and the distribution width of colors” and made a system for assisting in drawing the cracks. We could reduce the cost and term for tracing cracks.