Map, Journal of the Japan Cartographers Association
Online ISSN : 2185-646X
Print ISSN : 0009-4897
ISSN-L : 0009-4897
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Volume 51, Issue 2
Displaying 1-11 of 11 articles from this issue
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  • Evaluation of Accuracy of Orthoimagery Generated from WorldView-1/2
    Yoshiaki KAGAWA, Tomohide SUZUKI, Hidekazu MINAMI
    2013 Volume 51 Issue 2 Pages 28-35
    Published: 2013
    Released on J-STAGE: November 17, 2016
    DOIhttps://doi.org/10.11212/jjca.51.2_28
    JOURNAL FREE ACCESS
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  • Interpretation Performances of Optical Satellite Imageries with 0.5m Pixel Size on the Ground
    Takayuki NAKANO, Mamoru KOARAI, Sadaharu MINESHIMA, Yoshiaki KAGAWA
    2013 Volume 51 Issue 2 Pages 36-43
    Published: 2013
    Released on J-STAGE: November 17, 2016
    DOIhttps://doi.org/10.11212/jjca.51.2_36
    JOURNAL FREE ACCESS
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    We investigated an interpretation performances of features drawn on the 1/2,500 national large scale map using optical satellite imageries with 0.5m pixel size on the ground (GeoEye-1, WorldView-2 imageries) in Tsukuba City, Ibaraki Prefecture. The satellite imageries are stereo-pansharpen and -panchromatic imagery and ortho-pansharpen and -panchromatic imagery. The method of interpretation is stereoscopic and monocular vision. We arranged each interpretation performances as a interpretation casebook comparing with aerial photos (0.2m pixel size on the ground), QuickBird (0.6m pixel size on the ground) and IKONOS imageries (1.0m pixel size on the ground). The result indicated that the most of the features in this study are able to interpret using optical satellite imageries with 0.5m pixel size on the ground at almost the same level with an aerial photos.

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  • JAXA High Resolution Land-Use and Land-Cover Map in Japan
    Masuo TAKAHASHI, Kenlo Nishida NASAHARA, Takeo TADONO
    2013 Volume 51 Issue 2 Pages 44-49
    Published: 2013
    Released on J-STAGE: November 17, 2016
    DOIhttps://doi.org/10.11212/jjca.51.2_44
    JOURNAL FREE ACCESS
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    Japan Aerospace Exploration Agency (JAXA) is creating the "JAXA High Resolution Land-Use and Land-Cover Map" in whole of Japan. The data were acquired by the Advanced Visible and Near Infrared Radiometer type 2 (AVNIR-2), onboard the Advanced Land Observing Satellite (ALOS, "Daichi"). The latest version of the map, version 13.02, has been released on March 1, 2013. Ortho-rectification, atmospheric and slope correction were applied to the AVNIR-2 data. The number of the input data for the classification was 1,876 scenes which had been acquired from April 28, 2006 to April 15, 2011. The classification categories are 1) water, 2) urban, 3) paddy, 4) crop, 5) grass, 6) deciduous forest, 7) evergreen forest, 8) bare land, and 9) snow and ice. Pixel spacing of the map is 0.000278 ° and 0.000333 ° for the latitude and longitude, respectively, which corresponds to a spatial resolution of about 30 m. The temporal classification accuracy was found to be 89.3%, which was is calculated using the validated accuracy of the classification multiplied by the surface ratio in each category by the Bureau of Statistics , the Ministry of Internal Affairs and Communications.

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