本文關鍵詞： 面向對象方法 水邊線提取 岸線類型 “高分一號”衛(wèi)星 遙感應用　出處：《航天返回與遙感》2017年04期 　論文類型：期刊論文

【摘要】：水邊線提取對揭示沿海地區(qū)自然資源管理狀況和人工海域使用程度具有重要的指示作用。文章以津冀地區(qū)沿海城市海岸帶為例,選取"高分一號"衛(wèi)星數(shù)據(jù)為遙感數(shù)據(jù)源,首先對數(shù)據(jù)進行了輻射校正、幾何校正、影像融合和裁剪等處理,然后采用面向對象的目標提取技術自動提取了研究區(qū)內大范圍的水邊線,并在充分了解不同海岸類型的遙感解譯標志的基礎上對提取的岸線進行了分類。結果顯示研究區(qū)的岸線類型主要以砂礫質岸線、養(yǎng)殖/鹽田岸線和港口碼頭岸線為主。在分類結果的精度驗證過程中,以與"高分一號"衛(wèi)星相近時期的亞米級遙感影像為底圖,以目視解譯的方式從中提取高精度的海岸線,并將目視解譯的結果與從"高分一號"衛(wèi)星數(shù)據(jù)中提取到的岸線進行對比。通過比較發(fā)現(xiàn),兩者位置、長度等基本吻合,從而證明了該海岸線提取方法對高分辨率遙感影像的有效性。該方法為基于"高分一號"衛(wèi)星遙感數(shù)據(jù)進行大范圍海岸的水邊線提取提供了技術支撐,也為實現(xiàn)中國海岸線的定期自動更新奠定了基礎。
[Abstract]:The extraction of waterfront plays an important role in revealing the management of natural resources and the use of artificial sea areas in coastal areas. Taking the coastal zone of coastal cities in Tianjin-Hebei region as an example, the satellite data of "Gao Fen No. 1" is selected as the remote sensing data source. First of all, the data are processed with radiometric correction, geometric correction, image fusion and clipping, and then the wide range of water edges in the study area are automatically extracted by object oriented object extraction technology. The extracted shoreline was classified on the basis of fully understanding the remote sensing interpretation marks of different coastal types. The results showed that the main shoreline types in the study area were sandy and gravel shoreline. Farming / salt field shoreline and port wharf shoreline are dominant. In the process of accuracy verification of classification results, the high-precision shoreline is extracted from the sub-rice remote sensing images of the period close to the Gaofen 1 satellite as the base map, and the coastline is extracted by visual interpretation. The results of visual interpretation are compared with the shoreline extracted from Gaofen 1 satellite data. Through comparison, it is found that the positions and lengths of the two are basically consistent. It is proved that this method is effective for high resolution remote sensing images, and it provides technical support for the extraction of waterfront in a large area of coast based on the satellite remote sensing data of "Gao Fen 1". Also for the realization of China's coastline regular automatic updating laid the foundation.
【作者單位】： 山東科技大學測繪科學與工程學院;中國科學院遙感與數(shù)字地球研究所數(shù)字地球重點實驗室;國家海洋技術中心;
【基金】：中國科學院“百人項目”(Y34005101A,Y2ZZ03101B) 中國科學技術部國家科技支撐計劃專題(2015BAB05B05-02) 高分辨率對地觀測系統(tǒng)重大專項(30-Y20A37-9003-15/17) 中國科學院重點部署項目(ZDRW-ZS-2016-6-1-3) 國家海洋局項目(Y21702011)
【分類號】：P715.7

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