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Online ISSN : 2185-646X
Print ISSN : 0009-4897
ISSN-L : 0009-4897
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51 巻, 2 号
選択された号の論文の11件中1～11を表示しています
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  • WorldView-1/2衛星オルソ画像の位置精度評価
    賀川 義昭, 鈴木 伴英, 南 秀和
    2013 年 51 巻 2 号 p. 28-35
    発行日: 2013年
    公開日: 2016/11/17
    DOIhttps://doi.org/10.11212/jjca.51.2_28
    ジャーナル フリー
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  • 地上画素寸法0.5m級光学衛星画像による地物判読性能
    中埜 貴元, 小荒井 衛, 峰島 貞治, 賀川 義昭
    2013 年 51 巻 2 号 p. 36-43
    発行日: 2013年
    公開日: 2016/11/17
    DOIhttps://doi.org/10.11212/jjca.51.2_36
    ジャーナル フリー
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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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  • 日本におけるJAXA高解像度土地利用土地被覆図
    高橋 陪夫, 奈佐原 顕郎, 田殿 武雄
    2013 年 51 巻 2 号 p. 44-49
    発行日: 2013年
    公開日: 2016/11/17
    DOIhttps://doi.org/10.11212/jjca.51.2_44
    ジャーナル フリー
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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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