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中、低空机载成像光谱图像的几何校正研究 总被引:6,自引:0,他引:6
本文针对我国上海技术物理所研制的OMIS机载128道成像光谱系统试飞所获取的图像、定位和飞行姿态等数据,进行了图像几何修正处理和衫软件开发研究。详细分析了该系统所获取的定位与飞行姿态数据及存在的问题,并制定了相应的处理方案。根据该系统提供的各种参数,建立了航空高光谱图像单因素几何校正模型和几何畸变综合校正方法。对该系统在辽东湾地区试验飞行获取的10条航带图像进行几何校正和多航带镶嵌处理,效果理想。 相似文献
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Remote sensing technology has been widely recognized for contributing to emergency response efforts after the World Trade
Center attack on September 11th, 2001. The need to coordinate activities in the midst of a dense, yet relatively small area,
made the combination of imagery and mapped data strategically useful. This paper reviews the role played by aerial photography,
satellite imagery, and LIDAR data at Ground Zero. It examines how emergency managers utilized these datasets, and identifies
significant problems that were encountered. It goes on to explore additional ways in which imagery could have been used, while
presenting recommendations for more effective use in future disasters and Homeland Security applications. To plan adequately
for future events, it was important to capture knowledge from individuals who responded to the World Trade Center attack.
In recognition, interviews with key emergency management and geographic information system (GIS) personnel provide the basis
of this paper. Successful techniques should not be forgotten, or serious problems dismissed. Although widely used after September
11th, it is important to recognize that with better planning, remote sensing and GIS could have played an even greater role.
Together with a data acquisition timeline, an expanded discussion of these issues is available in the MCEER/NSF report “Emergency
Response in the Wake of the World Trade Center Attack; The Remote Sensing Perspective” (Huyck and Adams, 2002) 相似文献
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The advantages of using unmanned underwater vehicles in coastal ocean studies are emphasized. Two types of representative vehicles, remotely operated vehicle (ROV) and autonomous underwater vehicle (AUV) from University of South Florida, are discussed. Two individual modular sensor packages designed and tested for these platforms and field measurement results are also presented. The bottom classification and albedo package, BCAP, provides fast and accurate estimates of bottom albedos, along with other parameters such as in-water remote sensing reflectance. The real-time ocean bottom optical topographer, ROBOT, reveals high-resolution 3-dimentional bottom topography for target identification. Field data and results from recent Coastal Benthic Optical Properties field campaign, 1999 and 2000, are presented. Advantages and limitations of these vehicles and applications of modular sensor packages are compared and discussed. 相似文献
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多暗像元大气校正方法 总被引:1,自引:0,他引:1
针对Landsat TM影像,设计了一种适用于非均质大气的大气校正方法。该方法以暗目标减法(DOS)为基础,结合大气辐射传输模型,通过选取TM影像上多个暗像元,并计算其所对应的大气校正系数对整幅图像进行大气校正。该方法不依赖任何外部信息,并且考虑了大气的非均质性,校正精度较高。 相似文献