著者
池上 充庸
出版者
Japan Society of Photogrammetry and Remote Sensing
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.32, no.4, pp.17-31, 1993-09-30 (Released:2010-03-19)
参考文献数
6

The purpose of this report is to observe the internal structure of old scluptures and to measure the sizes of the nails used inside, the analytical X-ray photogrammetry utilized in this report has been studied for about 24 years. At first, the relationship between the target of X-ray tube and the object and the relationship between the target of X-ray tube and the projected point on the X-ray film were discussed. Next, the relationship between the density of X-ray film and the thickness of the wood, the voltage, the electric current and the exposure time were investigated. From the analogy between the analytical photogrammetry and analytical X-ray photogrammetry, the algorithm of the analytical X-ray photogrammetry were derived. In this report, the application of analytical X-ray photgrammetry on the wooden Buddist such as AMIDA, JUNI-SHINSHO and BISHAMONTEN, FUDOMYOO etc. were investigated. And the merits of the analytical X-ray photogrammetry are described.
著者
辻 宏道 山口 和典
出版者
Japan Society of Photogrammetry and Remote Sensing
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.52, no.3, pp.114-120, 2013-07-12 (Released:2014-07-01)
参考文献数
10
被引用文献数
2

The Geospatial Information Authority of Japan (GSI) has operated the GPS Earth Observation Network system (GEONET) since 1996, as an indispensable national infrastructure for GPS surveying, crustal deformation monitoring and precise Location Based Services. With the advent of multi GNSS environment, advanced users require GNSS data other than GPS, such as GLONASS, Quasi Zenith Satellite System (QZSS), Galileo, and so on. In response to these demands, GSI updated all receivers and antennas of about 1,300 GEONET stations, and started to provide QZSS and GLONASS data from May 10, 2013, yielding a network-based RTK-GNSS positioning service for all over Japan by the private sector. GEONET is now literally a GNSS Earth Observation Network system.
著者
平岡 透 桃嵜 真悟 越智 達郎 井上 光平
出版者
Japan Society of Photogrammetry and Remote Sensing
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.49, no.5, pp.320-325, 2010-11-12 (Released:2011-11-01)
参考文献数
12

In this technical report, we propose a new clustering method based on histogram intersection. We prove the effectiveness the proposed method through experiments of land cover classification with multispectral image. Finally, we comment on the respects in which the proposed method is improved and on future prospects.
著者
田中 邦一 横田 道生 鈴木 徹 佐伯 悟
出版者
Japan Society of Photogrammetry and Remote Sensing
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.16, no.1, pp.2-7, 1978-03-25 (Released:2010-03-19)
参考文献数
6
被引用文献数
1 1

沿岸環境や水質汚染の監視のために, 水面からの反射スペクトルの特性と水質との関連を明らかにする必要がある。こうした目的に沿って1975年から1977年までに筆者等は, いろいろな湖や海域で水面からの反射スペクトルの測定と同時に, 透明度等の水質調査を行なってきた。特に採水した試水については, 光学的な水質項目である懸濁物質量とクロロフィル量の分析を行なった。本論では, 以上の観測結果から, 水面からの反射スペクトルと水質との関連についての検討を行なった.これらの結果として, 汚濁の強い水域では清澄な水域より, 反射率が高いので, 水質の指標として水面反射率の測定は有効であると結論できる。
著者
平田 泰雅
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.56, no.5, pp.200-203, 2017 (Released:2018-11-01)
参考文献数
1

At COP21 held in Paris in 2015, the Paris Agreement was adopted, in which REDD-plus was confirmed as one of the most important climate change mitigation measures. In this paper, I explain the status of forest in developing countries, which implement REDD-plus activities, and the use of remote sensing in the REDD-plus scheme. Next, I consider issues of the use of remote sensing for REDD-plus implementation. Finally, I describe prospects of the monitoring to archive REDD-plus using remote sensing.
著者
山﨑 健吾
出版者
Japan Society of Photogrammetry and Remote Sensing
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.50, no.4, pp.216-218, 2011-09-09 (Released:2012-09-01)

政府からの要請により,東北地方太平洋沖地震によって被災した福島第一原子力発電所の空中写真を,無人飛行機をもちいて撮影した。撮影日は3月20日と24日の2回で,20日には1時間30分,182kmの飛行で155枚を,24日には1時間36分,190kmの飛行で212枚を撮影した。
著者
土出 昌一
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.28, no.5, pp.43-47, 1989-10-30 (Released:2010-03-19)
参考文献数
4
被引用文献数
1
著者
須崎 純一 高野 麻衣 田村 正行
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.48, no.5, pp.308-314, 2009

The present paper proposes an algorithm to automatically extract the edges of buildings from terrestrial LiDAR data for the sake of three-dimensional modeling. Because three-dimensional LiDAR data are difficult to process for the extraction, first, two-dimensional data (<i>r<sub>xy,z</sub></i>) is obtained from the original threedimensional data. Next, two gravity points were calculated using several points in the neighbor of the target point in order to reduce the effects of the noise contaminated in the data. Finally, the interior angle of the target point with two gravity points was defined as an indicator for the edges. The results show that the algorithm can function robustly to extract the edges. While the proposed algorithm is based on the two-dimensional processing, it can be applied for the three-dimensional coordinate by merging different scan line results. It is concluded that the proposed algorithm is potential to apply for the three-dimensional modeling of buildings.
著者
五十嵐 保 遠藤 貴宏
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.3, pp.111-117, 2014 (Released:2015-07-01)
参考文献数
3
被引用文献数
1

GPM (global precipitation measurement) core observatory was launched by H-IIA・F23 rocket on 28 February, 2014 successfully. The first light images by mission instruments ; DPR (dual-frequency precipitation radar) and GMI (GPM microwave imager) were released on 25 March, 2014 by JAXA/NASA, which are verifying qualitative precipitation intensity in vertical and horizontal distribution. This review is describing overview of GPM core observatory with DPR, GMI, status of GPM constellation satellites, and GSMaP (global satellite mapping of precipitation).
著者
柳川 雅一
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.17, no.2, pp.11-20, 1978

1978年5月18日, 妙高火山白田切川に発生した土石流は新赤倉温泉を中心に多くの被害をもたらした。筆者は災害前後の空中写真による判読と計測, および現地調査を行って, 土石流の氾濫と地形との関係を検討し, 次のような知見を得た。<BR>(1) 土石流が氾濫したのは河床の浅い所である。<BR>(2) 土石流が氾濫したのは河道の攻撃斜面側である。<BR>(3) 河道に沿う自然堤防状の微高地か土石流の氾濫域を規制している。<BR>以上の知見は火山地域における土石流災害予測を考える場合に重要であると考えられる。
著者
合屋 渉太 力丸 厚 高橋 一義
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.57, no.5, pp.217-223, 2018 (Released:2019-11-01)
参考文献数
8

Plant height, one of the fundamental crop growth parameters, is usually collected by a direct measurement. The authors have developed a method for the estimation of rice plant height by using a short-range LiDAR measurement from above a paddy rice canopy. In this method, the estimated rice plant height is calculated based on the analysis of the vertical distribution of 3D point cloud data, therefore the estimation is affected by foliage abundance and laser incident angle conditions. Plants with similar height but different foliage abundance were observed using a short-range LiDAR from above a paddy rice canopy to examine the influence of the incident angles on rice plant height estimation. The results of the examination showed that the influence of the incident angle condition was similar in different foliage abundance until the maximum tiller number stage. In addition, the estimation of rice plant height was not affected by foliage abundance in a laser incident angle less than 8 degrees which is almost a vertical incident condition.