摘要
针对泥石流、滑坡等给地质灾害的多发性,给居民生命和财产安全带来严重威胁的问题,结合遥感技术原理及研究现状,以某区块采集到的多源、多时相遥感影像为数据源,提出一种灾害体变化预测模型。对此,文章利用直方图匹配方法,对获取到的遥感数据进行预处理,从而提高辐射匹配的精度;其次,引入高程模型,对土方的高程量进行进行推算,从而得到土方变化量;最后通过多项式数学模型的方式,对地质灾害体的变化趋势进行拟合,从而推算其变化。最后通过比对,与实际的变化相差不大,由此判断该方法具有一定推广价值。
Aiming at the debris flow and landslide to geological disaster prone, pose a serious threat to the lives and property of residents safety problems, combined with the principle and research status of remote sensing technology, multi- source, with a block of collected multitemporal remote sensing images as the data source, proposes a disaster prediction model change. In this regard, the histogram matching method using remote sensing data, to get to the pretreatment, so as to improve the matching accuracy of radiation ; sec- ondly, the introduction of elevation model, elevation of the earthwork calculation of the amount, to get the variation of the earth ; polynomial mathematical model, the change trend of the geological hazard body fitting. In order to calculate the change. Finally, through the comparison, and the actual change is not big, thus judging the method has certain promotion value.
出处
《自动化与仪器仪表》
2017年第8期118-119,122,共3页
Automation & Instrumentation
关键词
遥感技术
地质灾害
高程模型
多项式
土方量
remote sensing
geological hazards
elevation model
polynomial
earthwork
