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 20, Issue 4
Displaying 1-6 of 6 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1981 Volume 20 Issue 4 Pages 1
    Published: October 27, 1981
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.20.4_1
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1981 Volume 20 Issue 4 Pages 2-3
    Published: October 27, 1981
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.20.4_2
    JOURNAL FREE ACCESS
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  • Automatical Contour Production Using Image Correlation of Aerial Stereo Photographs—Processing and Automatic Orientation
    Chuji MORI, Susumu HATTORI, Keisuke IMAI, Ichiro OGAWA
    1981 Volume 20 Issue 4 Pages 4-13
    Published: October 27, 1981
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.20.4_4
    JOURNAL FREE ACCESS
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    A practical experiment for producing a contour map automatically from aerial stereo photographs using a drum scanning micro densitometer and a general purpose computer is described. The procesure is based partly on the Kreiling's method, and partly on the Konecny's method.
    Among a sequence of procesures for automatical contour drawing, this paper contains photo digitizing, calibration of the image coordinate system using 4 fiducial marks, and automatical relative orientation using 2-dimensional image correlation. And following procesures, that is, digital rectification, production of grid elevation files using 1-dimensional image correlation, and contour map drawing will be discussed in the subsequent paper.
    Some remarks obtained by the experiment are:
    1) A drum scanning micro densitometer caused considerable irregular deformations in the image, which might not be tolerable from a photogrammetric point of view.
    2) In the test of automatical relative orientation using 2-dimensional image correlation technique, when high contrast points are selected as the orientation points on the left image, the homologeous points were capable of being searched with higher precision than when one identified the homologeous points on the image printed with a line printer by eye-sight.
    3) However, in the case that orientation points were given arbitrarily on the left image, the homologeous points in the mountainous region could not be searched at all.
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  • The Relation Between Spectral Radiometric Characteristic of Water Surface and Water Quality
    —Estimation of Reflectance Factor of Water Surface Using Kubelka-Munk's Two Constant Theory—
    Yukio SUGAHARA
    1981 Volume 20 Issue 4 Pages 14-22
    Published: October 27, 1981
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.20.4_14
    JOURNAL FREE ACCESS
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    For understanding of changes of spectral radiometric characteristic caused by the changes of water quality, the author composed an analytical method introducing the model of the Kubelka-Munk's two constant theory.
    The author can get the value of scattering and absoption coefficient of turbid medium with this method. As a result, using the statistical relation between the estimated optical coefficients and the water quality, the spectral radiometric characteristic can be calculated by the Kubelka-Munk's two constant theory. Because of that's optical effectiveness, chlorophyll and turbidity were selected for objective water quality of this study.
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  • Urban Thermal Environment Research in Hiroshima City by Airborne Remote Sensing
    Yuzo SUGA
    1981 Volume 20 Issue 4 Pages 23-29
    Published: October 27, 1981
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.20.4_23
    JOURNAL FREE ACCESS
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    The thermal information extracted from airborne MSS thermal infrared (10.5-12.5μm) data is applied to investigate and monitor the urban thermal environment.
    For this evaluation, a surface radiant temperature distribution map of Hiroshima City is made from airborne MSS data (thermal infrared imagery) obtained on Sept. 15, 1980 for a selected flightpath across the city. Then the mean surface radiant temperature is calculated in each mesh on the thermal imagery. For comparison with the above, the mean surface radiant temperature is estimated by a multi-regression model simulated using the various types of urban land-use as predictor variables.
    The surface radiant temperature model obtained by simulation compares with the thermal information by airborne remote sensing sufficiently to encourage further refinement of urban thermal environment research involving land-use data.
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  • [title in Japanese]
    1981 Volume 20 Issue 4 Pages 30-40
    Published: October 27, 1981
    Released on J-STAGE: March 19, 2010
    DOIhttps://doi.org/10.4287/jsprs.20.4_30
    JOURNAL FREE ACCESS
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