摘要
为了提升城市土地利用动态监测的精度和效率,构建基于无人机倾斜摄影测量技术监测方法。结果表明:倾斜影像需要经去噪、增强、纠正、匹配、平差等处理措施后,才能够满足变化信息提取对数字地表模型(Digital Surface Model,简称DSM)的精度要求;采用高差阈值α=3.5m以及12m×12m网格检索单元,可使变化信息提取准确度达到82.9%。研究成果对于城市土地动态监管具有一定的指导意义。
In order to improve the accuracy and efficiency of urban land use dynamic monitoring,a monitoring method based on UAV tilt photogrammetry technology is constructed.As seen in the results,the tilt image needs to be processed through denoising,enhancement,correction,matching,adjustment and other measures to meet the accuracy requirements of DSM for change information extraction.Using the height difference thresholdα=3.5m and 12m×12m grid retrieval unit can make the change information extraction more accurate,which can reach 82.9%.The research results are of certain guiding significance for the dynamic supervision of urban land.
作者
杨瑜
马家驹
YANG Yu;MA Jiaju(Zhejiang Nonferrous Survey Planning and Design Co.,Ltd.,Shaoxing 312000,China)
出处
《江西测绘》
2022年第1期29-32,共4页
JIANGXI CEHUI
作者简介
杨瑜(1990-),女,本科,工程师,主要从事GPS、无人机航摄等工作。E-mail:yangtingv6869@163.com
