| 基本地形图更新卫星影像优选探讨 |
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| 引用本文： | 奚歌,吴正鹏,侯晨,姜伟男.基本地形图更新卫星影像优选探讨[J].东北测绘,2012(10):70-73,76. |
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| 作者姓名： | 奚歌 吴正鹏 侯晨 姜伟男 |
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| 作者单位： | [1]国家海洋信息中心,天津300171 [2]天津市测绘院,天津300381 |
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| 摘 要： | 基于卫星遥感影像进行基本地形图更新具有更新周期短、效率高的特点,最优卫星影像数据源选取环节为实施关键步骤。本文分析了卫星影像数据选取的主要影响因素;基于遥感影像尺度效应、地形图成图比例尺、研究区域和地物特征适宜空间分辨率、影像质量等基本信息,对用于地形图更新的卫星影像数据的基本要求提出了建议。
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| 关 键 词： | 地形图更新 卫星遥感影像 尺度效应 适宜空间分辨率 影像质量特征 |
Research on Satellite Image Update in Basic Topographic Map |
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| Institution: | XI Ge1, WU Zheng- peng2 , HOU Chen1 , JIANG Wei -nan1 (1. China Oceanic Information Center, Tianjin 300171, China; 2. Tianjin Institute of Surveying and Mapping, Tianjin 300381, China) |
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| Abstract: | Basic topographic map update based on satellite remote sensing images is characteristic of short update periods and high ef- ficiency. Optimum selection of satellite images becomes the key step of map updating. The paper analyzes the main factors of affecting the selection of satellite image data. Based on scale effect of remote sensing image, topographic map scale, appropriate spatial resolu- tion of research area and terrain property, image quality and so on, the requirement of satellite image which is used to update map is proposed in this paper. |
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| Keywords: | topographic map update satellite remote sensing image scale effect appropriate spatial resolution characteristics of im-age quality |
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