著者
熊谷 秀夫
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.326-331, 2010-11-12 (Released:2011-11-01)
参考文献数
5
被引用文献数
1

A GPS/IMU hybrid Inertial Navigation System is applied in wide range field to determine the position, attitude and heading. This paper introduces the various GPS/INS Systems and its Leading-edge Trend.
著者
布施 孝志 松本 圭生
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.54, no.6, pp.290-299, 2016 (Released:2017-01-01)
参考文献数
16
被引用文献数
2 3

Development of high performance CPU, cameras and other sensors on mobile devices have been used for wide variety of applications. The applications require self-localization of the devices. Since the self-localization is based on GPS, gyro sensor, acceleration meter and magnetic field sensor (POS) of low accuracy, the applications are limited. On the other hand, self-localization method using images have been developed, and the accuracy of the method is increasing. This paper develops the self-localization method by integrating sensors, such as POS and a camera on a mobile device. The proposed method mainly consists of two parts : one is the accuracy improvement of POS data with filtering, and another is development of self-localization method by integrating POS data and images. The POS data filtering combines all data by using Kalman filter. The estimated exterior orientation factors are used as initial value of ones in image-based self-localization method, which is based on structure from motion. The exterior orientation factors are integrated and updated by applying bundle adjustment. Through experiments with real data, the accuracy improvement by the proposed method is confirmed.
著者
小花和 宏之 早川 裕弌 齋藤 仁 ゴメス クリストファー
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.2, pp.67-74, 2014 (Released:2015-05-01)
参考文献数
6
被引用文献数
13 16

In the last few years, SfM (Structure from Motion) based on photographs taken from UAV (Unmanned Aerial Vehicle) has attracted a tremendous amount of interest for the creation of DSM (Digital Surface Model) and other morphometric products. However, the accuracy of the derived DSM hasn't been sufficiently evaluated yet. Therefore, the present contribution aims to compare UAV-based SfM data against TLS (Terrestrial Laser Scanning) derived DSM data. The fieldwork was carried out on a wave-cut bench in Kanagawa Prefecture (Japan). Results have indicated that DSM data derived from UAV-SfM can create a point cloud of comparable density to the one created by TLS, with a maximum deviation of 10 cm from the TLS data. The UAV-SfM technique has a great potential for a wide range of application, because of its high data accuracy, low acquisition and operational costs, allowing high spatial and temporal data recording.
著者
駒井 二郎
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.34, no.4, pp.36-47, 1995

A number of distinct signatures suspected of relating to Maya relics are observed over northern Yucatan Peninsula, serendipitously, during the geological study on JERS-1/SAR imagery. Among other things, ancient roadways ("sacbe"in indigenous language) are prominent being expressed as linear features, mostly with dark tones, throughout the whole region. Preliminary interpretation shows that these archaeological lineaments might also be indications of putative causeways, moats, walls and the like constructed by Maya people in the past. Another interesting patterns to be noted are numerous bright spots which suggest remains of human dwellings consisted of aggregation of huge mounds, courtyards, buildings including pyramids, from place to place. No verification with on-site ground check is practised yet ; however, the result of correlation with existing data seems to be encouraging to demonstrate the unique potentiality of JERS-1 imagery in radar archaeology, particularly, in terms of penetration through vegetative cover.
著者
木全 敬蔵
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.36, no.1, pp.56-70, 1997-03-05 (Released:2010-03-19)
参考文献数
18
被引用文献数
1

In the 8th year of the reign of Taisho (1919), with the arrival of the French tutorial unit, the Japanese Army started its aerial photographing.In the 12th year of Taisho (1923), the Shimoshizu military aviation school to which the French tutorial unit gave direct training, took aerial photographs of Tokyo immediately after the great Kanto earthquake. They played an important role in deciding the restoration plan. Triggered by this fact, 6 big cites including Nagoya, Kyoto and Osaka took the aerial photographs for the use of city planning, in the following 13th year of Taisho. The military aviation schools carried out the job in the guise of the military training.In the 8th year of Showa (1933), demands for the aerial photograph raised as application of the City Planning Act was extended to cover the new industrial cities. In the 12th year of Showa (1937) . the Japan-China war became intense and the cooperation from the military aviation schools went unattainable. The situation encouraged the birth of private companies undertaking the aerial photography. In the same year the Military Secret Protection Act was enacted and the aerial photographs were kept out of the public eyes as a part of military secrest. The city of Osaka has preserved the negatives taken in the years of 3rd and 6th of Showa in spite of the strict restriction and regulation of the Army.
著者
中川 雅史 倉持 里史 黒木 雅人
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.50, no.4, pp.243-251, 2011-09-09 (Released:2012-09-01)
参考文献数
6

We have developed a point-based rendering application with high-speed spatial interpolation using a point cloud to generate virtual reality (VR) data called LiDAR VR. This application can not only transform from a point cloud to VR data but can also regenerate missing point data in the rendered result from a selected viewpoint. Moreover, we have focused on the following features of the LiDAR VR generation. First, panorama imagery can be generated automatically from many viewpoints from one observation data set. Second, it is possible that a spatial interpolation with rendering results can reduce the processing task. These features have been verified using case studies.
著者
駒井 二郎
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.34, no.4, pp.36-47, 1995-08-31 (Released:2010-03-19)
参考文献数
17

A number of distinct signatures suspected of relating to Maya relics are observed over northern Yucatan Peninsula, serendipitously, during the geological study on JERS-1/SAR imagery. Among other things, ancient roadways (“sacbe”in indigenous language) are prominent being expressed as linear features, mostly with dark tones, throughout the whole region. Preliminary interpretation shows that these archaeological lineaments might also be indications of putative causeways, moats, walls and the like constructed by Maya people in the past. Another interesting patterns to be noted are numerous bright spots which suggest remains of human dwellings consisted of aggregation of huge mounds, courtyards, buildings including pyramids, from place to place. No verification with on-site ground check is practised yet ; however, the result of correlation with existing data seems to be encouraging to demonstrate the unique potentiality of JERS-1 imagery in radar archaeology, particularly, in terms of penetration through vegetative cover.
著者
長谷川 裕之 小白井 亮一 佐藤 浩 飯泉 章子
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.44, no.3, pp.23-36, 2005-07-01 (Released:2010-03-19)
参考文献数
9
被引用文献数
2

This paper introduces a method for colourizing the black and white (B/W) air photos by transferring colour information from another colour air photos that capture the same vegetations at the same season. Air photos taken by U.S. Air Force just after WWII were the first ones that cover whole Japan. As they are available only in B/W, the imagery has not been fully utilized.In our method, land cover was roughly categorized on a B/W image, whereas colour information for each category was taken from colour source images. Then colour information and original intensity information of the B/W image were combined in the HSI colour space.A questionnaire on photo interpretation experts revealed that the proposed method worked well for the photos. Additionally, rough categorization was enough for the method and the colourized photos might improve interpretation efficiency. The colourized images should be used for various purposes such as 3D landscape visualisation.
著者
小林 和夫
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.30, no.3, pp.42-48, 1991-07-10 (Released:2010-03-19)
参考文献数
4

We have been provided confusion to some extent by several explanations of dissimilar meanings with respect to a scientif ical terminology.This paper shows a semantic problem concerning stochastic error term stood for “mean square error” (MSE) which does not exhibit only “root of mean of squared errors” in surveying and photogrammetry, but also indicates “average of squared errors” (or residuals) in statistics.Therefore, it is highly recommended even in surveying and photogrammetry that precision and accuracy illustrated a dispersion and an extent of measurements, respectively, should be utilized variance and MSE (square of “RMS” (root mean square) error) which can be obtained with sum of squared differences between measurements and most probable parameter (or true value), divided by number of observations, or redundancy of them. Similarly, definition of “MSE” in statistics makes variance added to squared bias (systematic error) .
著者
諸星 敏一 星 仰 幾志 新吉
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.21, no.3, pp.34-41, 1982

GMSのCCTデータのパラメータ部と画像の一部のフォーマット変換とリスト処理の手法を開発した。<BR>このフォーマット変換は, データコントロールパラメータと記述文コントロールパラメータを用いて, バッファメモリ上で編集しながら処理を行うものである。<BR>このフォーマット変換を用いれば, 見出し, ページ, 項目番号, 記述文, データの位置, データの長さ, 副記述文を付加し文字型に変換されたパラメータ部のデータが得られる。また, 画像データ部の1ラインのダンプリストが10進数と16進数で得られる。<BR>この手法は, LANDSAT-MSS, LANDSAT-RBV, NOAAのCCTデータにも応用できる。<BR>LANDSAT-RBVとNOAAに関しては, すでにフォーマット変換を実行している。<BR>この変換手法を利用することによる利点はつぎのとおりである。<BR>1) パラメータ部のデータの内容が理解しやすくなる。<BR>2) 画像データのダンプリストにより, 画像のレベルを解析以前に知ることができる。<BR>3) 将来確立が予想される, リモートセンシングデータの統一的なデータ管理システムに応用できる。
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

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).