文章基本信息

标题：Advanced Structural Disaster Damage Assessment Based on Aerial Oblique Video Imagery and Integrated Auxiliary Data Sources
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作者：N. Kerle ; R. Stekelenburg
期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2004
卷号：XXXV Part B7
页码：580-585
出版社：Copernicus Publications
摘要：Following natural and man-made disasters, comprehensive and reliable information on the nature, extent, and actual consequences of an event is required. Obtaining such information is particularly challenging following unheralded disasters, such as earthquakes or industrial accidents. In those situations, currently operational space-based sensors may not be able to provide timely data. In addition, even high spatial resolution satellites (< 1m) are limited in their capacity to reveal true 3D structural damage at a level of detail necessary for appropriate disaster response. In this study we investigated the use of oblique aerial video imagery for systematic quantitative damage assessment. Specifically, the following issues were addressed: (i) extraction of individual frames from aerial TV video data, and subsequent enhancement of frame information content using a synthetic aperture approach, and by stacking adjacent frames; (ii) spatial registration of individual frames based on automatically extracted positional information, and (iii) damage analysis based on HIS values and edge elements. We created a working environment that facilitates the video-based damage assessment process and integration with auxiliary data. The limited success of the automatic damage assessment was caused by poor image quality and empirically determined damage threshold values. We provide recommendations for improved image acquisition, and plan further work focusing on generic texture parameters and object geometry. As an illustration, we used aerial video data acquired in May 2000 over Enschede, the Netherlands, following the explosion of a fireworks factory that severely damaged or destroyed nearly 500 buildings and caused 22 fatalities
关键词：Disaster; video; satellite; change detection; integration; texture