Journal of the Japan society of photogrammetry and remote sensing
Online ISSN : 1883-9061
Print ISSN : 0285-5844
ISSN-L : 0285-5844
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Volume 50, Issue 3
Displaying 1-11 of 11 articles from this issue
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Preface
Original Papers
  • Camera Calibration for Digital Camera using Triplet Images
    Hideharu YANAGI, Hirofumi CHIKATSU
    2011 Volume 50 Issue 3 Pages 130-138
    Published: July 13, 2011
    Released on J-STAGE: July 01, 2012
    DOIhttps://doi.org/10.4287/jsprs.50.130
    JOURNAL FREE ACCESS
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    According to appearance of low cost and high resolution consumer grade digital cameras with various functions, convenient 3D measurement using the digital cameras are enormously expected in various fields. However, there are still problems for efficient digital photogrammetry using the cameras. These problems include 3D measurement for ground control point, previous interior orientation procedures and restriction for taking images. These restrictions should be removed for ideal convenient photogrammetry using the digital cameras.
    In order to resolve the above problems, efficient camera calibration method which does not need ground control points nor previous interior orientation procedures are proposed in this paper.
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  • Near-real time LST monitoring system with MTSAT data over Asian megacities
    Kei OYOSHI, Shin AKATSUKA, Wataru TAKEUCHI, Masayuki TAMURA
    2011 Volume 50 Issue 3 Pages 139-144
    Published: July 13, 2011
    Released on J-STAGE: July 01, 2012
    DOIhttps://doi.org/10.4287/jsprs.50.139
    JOURNAL FREE ACCESS
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    Population and economic growth are expected to continue with high rate in Asian countries, and urban structure can be transformed dramatically. Urbanization and increase in anthropogenic energy consumption cause urban heat island effect that means higher temperature in urban areas. In this research, we have developed a monitoring system for Land Surface Temperature (LST) over Asian megacities with Japanese geostationary satellite, namely Multi-functional Transport Satellite (MTSAT). MTSAT covers the Asia-Oceania region and it can retrieve hourly LST by its excellent temporal sampling. The developed system is open to the public on the WWW (http://webgms.iis.u-tokyo.ac.jp/LST/index.php) and provides latest LST images in the delay of approximately 3 hours. The system also allows users to search previous LST images by selecting arbitrary date and hour on GUI. Finally, we have demonstrated the monitoring of heat island effect by the system and it was found that it is effective to quantify the detailed time-series changes of heat island effect.
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