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海岸地形航空摄影测量技术及其实施 总被引:2,自引:0,他引:2
海岸地形测量是海道测量的重要组成部分,随着科学的发展和学科技术的融合,利用航空摄影测量技术完成海岸带地形测量成为必然。本文介绍了海岸带的基本定义、海岸地形航空摄影测量的必要性、基本方法步骤等,并针对开展海岸地形航空摄影测量工作提出了具体的建议和实施措施。 相似文献
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海岸地形航空摄影测量技术方案的确定 总被引:4,自引:4,他引:4
就海岸地形应用航空摄影方法实现的技术方案进行了探讨,介绍了航空摄影测量中遥感器的选择以及海岸带航空摄影的特点与要求,并给出在当前技术条件下海岸地形航空摄影测量的最佳实施方案。 相似文献
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海岸岛礁地形测量作业主要采用实时动态差分定位系统(real time kinematic,RTK)和全站仪相结合的测量作业模式,但在陡峭的悬崖地区、大面积的滩涂、沼泽,以及困难地区岛礁等,很难通过RTK作业方式实施登岛/登点测量,难以满足海岸岛礁应急作业的需求。开展了船载三维激光扫描地形测量关键技术研究,通过系列专业软件开发、技术试验、规程编制和生产作业等技术途径,构建了船载三维激光扫描地形测量技术体系,将大大减轻海岸岛礁地形测绘的劳动强度,加快数据更新和产品保障周期。 相似文献
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Technical foundation research on high resolution remote sensing system of China’s coastal zone 总被引:2,自引:0,他引:2
1IntroductionCoastalzoneisthemostdynamicpartoftheearthsystem,andalsotheveryvulnerablere-gionofecosystembalance.Forthisreason,theChinesegovernmentattachesgreatimportancetotheproblemssuchaseco-environment,itsex-ploitationandutilization,aswellassustainabledevelopment.Asweknown,thelengthofcoast-lineofChinais18000kmintotal,andthenum-berofislandslargerthan500km2 isabout6500.Sincethemid-1980s,greateffortshavebeenmadebyChinatocarryoutregularnationwideinvestigationsofthetidal-flatresourcesofcoastalzo… 相似文献
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Technical foundation research on high resolution remote sensing system of China''s coastal zone 总被引:1,自引:1,他引:1
China‘s coastal zone is a region with a highly developed economy that contrasts clearly with the slow paced regular investigation on its natural environment, which cannot keep pace with the requirement of economic development and modem management.Laying a theoretical foundation for the modem management of China‘s costal zone is aimed at.This research focuses on the following processing and analyzing technologies for coastal zone high-resolution remote sensing data: organization and management of large amounts of high-resolution remote sensing data, quick and precise spatial positioning system,algorithms for image fusion in feature level and coastal zone feature extraction. They will form a technical foundation of the system. And, if combined with other research results such as coastal zone remote sensing classification system and its mapping subsystem, an advanced technical frame for remote sensing investigation of coastal zone resource will be constructed. 相似文献
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海岸线是海岛海岸带研究的基础要素,对于海岸带资源开发利用具有重要意义。遥感技术凭借其宏观、多光谱且周期短等特点成为快速提取海岸线的重要技术手段。本文采用高分辨率遥感数据WorldView-2对海岸线两侧地物的表观反射率进行分析,并开展特征分析,构建了海岸线提取指数。在此基础上,进一步结合纹理特征提取方法,成功提取了马来西亚棉花岛的海岸线。基于线目标匹配法对提取结果进行精度评价,其中长度误差为-1.38%,在缓冲半径为6个像素单位时,完整度为96.96%,正确度为95.37%。结果表明,用该方法提取的海岸线精度较高,可满足遥感调查的需要。 相似文献
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1Introduction With the development and application of remotesensing technology, people fromthe international re-mote sensing community have realized the issue thatwe have immoderately emphasized characteristics ofvast volume data and great detail of remot… 相似文献
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