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 27, Issue 6
Displaying 1-5 of 5 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1988 Volume 27 Issue 6 Pages 1
    Published: December 30, 1988
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.27.6_1
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1988 Volume 27 Issue 6 Pages 2
    Published: December 30, 1988
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.27.6_2
    JOURNAL FREE ACCESS
    Download PDF (833K)
  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1988 Volume 27 Issue 6 Pages 4-10
    Published: December 30, 1988
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.27.6_4
    JOURNAL FREE ACCESS
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    [in Japanese]
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  • Phtogrammetry of an Object in Water Viewed through Glass-plate
    —One-step to Measure Visualized Flow Velocity—
    Fumio YOSHINO, Ryoji WAKA, Hiroshi KISHI, Hiroshi MIZUKAWA
    1988 Volume 27 Issue 6 Pages 11-22
    Published: December 30, 1988
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.27.6_11
    JOURNAL FREE ACCESS
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    Relations for projective transformation from a plane in air to a plane in water through glass-plate between them are introduced to determine the three dimensional coordinates of points in water photographed with a camera in air. Some limiting values and special forms of those relations are also given for the convenience of the use of a computer.
    Tests to examine those relations have been carried out using calibrated non-metric cameras and the water tunnel for flow visualization.The results of the tests show that it is possible to determine the three dimensional coordinate points in water through glass-plate of a water tunnel by using those relations obtained, of the projective transformation with good accuracy.
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  • Development of simple method for extract pixel inside spectral information
    Atsushi Rikimaru, Masakazu Kamijou, Taichi Oshima
    1988 Volume 27 Issue 6 Pages 23-34
    Published: December 30, 1988
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.27.6_23
    JOURNAL FREE ACCESS
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    The information of the pixel inside consists of synthesis signals which depend on the characteristics of reflectance factors of landcover materials. This study aims to analyze the model of synthesis signals of multispectral data, and to develop an estimation method of pixel inside information.
    If it is possible to estimate or extract the information of pixel inside with a simple method, the contents of landcover classified data will change from qualitative or logical information to quantitative information. In the field of water resources, it is already possible to extract the details of the snow-covered area by using LANDSAT data. But obtaining unclouded LANDSAT data is not so easy in the winter season of Japan. On the other hand, it is possible to obtain unclouded NOAA AVHRR data. Because the NOAA satellite covers the same area twice a day. But, spetial resolution of AVHRR data is very low, compared with LANDSAT MSS and TM.
    This study aims also to develop the methodology and procedures on how to extract details of pixel inside information from low spatial resolution sensor data such as NOAA AVHRR data.
    The estimation method of pixel inside is very simple, then it is easy to use in image operation, and it's results have some accuracy to use practical analysis.
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