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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。
In view of the multi-sourced and multi-temporal remote sensing images collected by a block, combining with remote sensing technology principle and research status, this paper addresses the problems of multiple hazards such as landslides and landslides, which pose a serious threat to the lives and property of residents. , Put forward a prediction model of disaster body change. In this regard, the article uses the histogram matching method to preprocess the obtained remote sensing data to improve the accuracy of radiation matching. Secondly, the elevation model is introduced to calculate the amount of earthwork to obtain the amount of earthwork change. Finally, Polynomial mathematical model of the way, the trend of geological hazards body to fit, and then calculate its changes. Finally, through the comparison, with little change in the actual, which determine the method has a certain promotional value.