| 海岛岸线遥感立体测图精细测量方法 |
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| 引用本文： | 党亚民,章传银,周兴华,薛树强,许军.海岛岸线遥感立体测图精细测量方法[J].测绘通报,2017,0(11):47-50. |
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| 作者姓名： | 党亚民 章传银 周兴华 薛树强 许军 |
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| 作者单位： | 1. 中国测绘科学研究院, 北京 100830;2. 海军大连舰艇学院, 辽宁 大连 116018;3. 国家海洋局第一海洋研究所, 山东 青岛 266061 |
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| 摘 要： | 提出了一种海岛岸线遥感测图精细测量新方法，该方法直接基于理论定义的海岸线，利用航空影像瞬时水涯线数据在立体测图环境中提取瞬时水位高程；利用海岛周边精密海潮模型和瞬时水位高程推算海岛岸线高程；最后依据海岛岸线高程，采用立体测图方法测制海岛岸线的平面位置。该方法确保了海岛岸线成果的唯一性和连续性，适合大比例尺的大陆海岸线和海岛岸线测量。测试结果显示，在较高精度海潮模型和海面地形支持下，海岛岸线高程精度优于0.2 m，可满足1：2000测图要求。
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| 关 键 词： | 海岛岸线 立体测图 瞬时水位 海洋潮汐 |
| 收稿时间： | 2017-03-09 |
Shoreline Surveying Method Based on the Stereo Imaging and Mapping |
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| DANG Yamin,ZHANG Chuanyin,ZHOU Xinghua,XUE Shuqiang,XU Jun.Shoreline Surveying Method Based on the Stereo Imaging and Mapping[J].Bulletin of Surveying and Mapping,2017,0(11):47-50. |
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| Authors: | DANG Yamin ZHANG Chuanyin ZHOU Xinghua XUE Shuqiang XU Jun |
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| Institution: | 1. Chinese Academy of Surveying and Mapping, Beijing 100830, China;2. PLA Dalian Naval Academy, Dalian 116018, China;3. The First Institute of Oceanography, State Oceanic Administration, Qingdao 266061, China |
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| Abstract: | A new method for accurately surveying and mapping the shoreline of an island is proposed where the theoretically shoreline defined by the high water (MHHW) is adopted as the shoreline indicator of the island. This method utilizes the height of the instantaneous shoreline extracted from the aerial images to obtain the height of the shoreline by combining the precise ocean tide model and the height of the instantaneous shoreline, and then the horizontal position of the shoreline can be tracked by the stereo imaging and mapping method with the obtained height of MHHW. The proposed method can keep and ensure the continuity and uniqueness of the shoreline relative to the field measurements for shoreline mapping, and this method can be widely applied to large-scale shoreline mapping of mainland and islands.Experimental test indicates that the height accuracy can reach 0.2 m and it can be applied to the island mapping of the scale 1:2000. |
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| Keywords: | island shoreline stereo mapping instantaneous water level ocean tide |
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