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 32, Issue 1
Displaying 1-11 of 11 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1993 Volume 32 Issue 1 Pages 1
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.1
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1993 Volume 32 Issue 1 Pages 2-3
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.2
    JOURNAL FREE ACCESS
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  • A study on Effective Scaling of Digital Satellite Images For Image Interpretation
    Kohei CHO, Shunji MURAI
    1993 Volume 32 Issue 1 Pages 4-17
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.4
    JOURNAL FREE ACCESS
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    High resolution satellite images, such as Landsat TM or SPOT HRV, allow us to extract detailed land cover information. However, if we enlarge those images too much, each pixel appear like a tile and disturbe image interpretation.
    In this paper, authors have examined the effective enlargement scale of digital satellite images for extracting detailed land cover information by image interpretation. The effective scale can be defined mainly from the human eye resolution and the sensor IFOV. The authors derived a equation which suggests a appropriate scale for patiqular IFOV image. For example, if the IFOV of a satellite image is lOm, we recommend 1/50, 000 scale for enlargement. If the image is enlarged more than this scale, the image quality suddenly decreases.
    Authors also examined the effect of image interpolation for image enlargement. When one want to enlarge a satellite image more than the above scale, interporation such as Bi-linear or Nearest Neighbor methods are useful for recovering the image quality reduction due to the image enlargement.
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  • Geomorphology based on Homotopy Model
    Tetsuya IKEDA, Minoru UEDA, Tosiyasu KUNII
    1993 Volume 32 Issue 1 Pages 18-24
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.18
    JOURNAL FREE ACCESS
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    Three dimentional representation of a geomorphology bo triangular patches has a few problems. Homotopy model in proposed to surface reconstraction, utilizing the characteristics of ridge line and valley direction.
    In order to deal with a region including ridges, valleys, and saddle points, a new type of toroidal graph that represents the relationship between multiple contours including the branching and merging of contours at critical points.
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  • Spectral Pattern Index for Logarithmic Residual and the similar methods
    Satoshi TSUCHIDA, Soichiro TANAKA, Takayuki ODAJIMA
    1993 Volume 32 Issue 1 Pages 25-35
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.25
    JOURNAL FREE ACCESS
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    Logarithmic Residual (LR), Least Upper Bound Residual (LUB) or Gray Scale Log Residual (GSLR) methods have been used for the purpose of converting digital numbers (DNs) of multiband remote sensing data to apparent band-to-band reflectance patterns. However, converted values by these methods show the specific distribution pattern in theN-dimension space defined by the N-band data, because these methods reduce the dimension toN-1. Thus, application of the spectral indices, which was previously developed for the original DN ofN-dimension, to the converted values may lead incorrect index values.
    The authors propose Spectral Pattern Index (SPI), which allows us to measure a band-to-band pattern similarity (“spectral pattern” and “spectral contrast”) convertedN-1 dimension values by the LR, LUB and GSLR methods. The Landsat TM data of Teshionakagawa area in northern Hokkaido, Japan, was processed by this new index after conversion to apparent reflectance pattern using the GSLR method. The result show more detailed information on vegetation and lithology.
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  • Airborne Gamma-Ray Spectrometry (I)
    Harumi ARAKI, Kuniro SUGIURA
    1993 Volume 32 Issue 1 Pages 36-43
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.36
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese]
    1993 Volume 32 Issue 1 Pages 44-45
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.44
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1993 Volume 32 Issue 1 Pages 46-48
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.46
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1993 Volume 32 Issue 1 Pages 49-50
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.49
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1993 Volume 32 Issue 1 Pages 51-53
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.51
    JOURNAL FREE ACCESS
    Download PDF (5654K)
  • [title in Japanese]
    [in Japanese]
    1993 Volume 32 Issue 1 Pages 54-56
    Published: March 01, 1993
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.32.54
    JOURNAL FREE ACCESS
    Download PDF (3639K)
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