基于地理实体与影像成像方式的镶嵌线生产算法研究
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摘要
对正射影像生产中的镶嵌线进行了研究,在充分考虑遥感影像成像方式和特征的情况下,利用航摄区的道路与地表覆盖地理实体,研究镶嵌线生成算法,将航带航向、像幅、像主点、地理实体等参数作为影像重叠区数据的取舍依据,在确保投影变形最小的情况下,实现影像镶嵌线的生产和后期影像镶嵌的自动化处理。本文采用大范围航空影像数据进行了试验,结果表明,该方法可以得到较好的处理结果,算法简单且易于实现,在高分辨率航空影像镶嵌处理中具有重要的应用价值。
The authors of this paper make a research on Mosaic lines algorithm for image DOM production. Taking full account of the imaging methods and characteristics of remote sensing images, an algorithm for generating mosaic lines is developed by using road and surface coverage of geographical entities in aerial photographic areas. The parameters of heading, image range, image principal point and geographical entity are taken as the basis for data selection in overlapping areas of images to ensure the projection variation. The production of image mosaic line and the automatic processing of image mosaic in later stage are realized under the condition of minimum shape. In this paper, a large number of aerial images are used for experimental verification. The experimental results show that the proposed method has a good data processing effect, is a simple algorithm and easy to be implemented. The key point is that it can be used for high resolution aerial image mosaic processing.
The authors of this paper make a research on Mosaic lines algorithm for image DOM production. Taking full account of the imaging methods and characteristics of remote sensing images, an algorithm for generating mosaic lines is developed by using road and surface coverage of geographical entities in aerial photographic areas. The parameters of heading, image range, image principal point and geographical entity are taken as the basis for data selection in overlapping areas of images to ensure the projection variation. The production of image mosaic line and the automatic processing of image mosaic in later stage are realized under the condition of minimum shape. In this paper, a large number of aerial images are used for experimental verification. The experimental results show that the proposed method has a good data processing effect, is a simple algorithm and easy to be implemented. The key point is that it can be used for high resolution aerial image mosaic processing.
引文
[1] 左志权,张祖勋,张剑清,等.DSM辅助下城区大比例尺正射影像镶嵌线智能检测[J].测绘学报,2011(1):84-89.
[2] 潘俊,王密,李德仁.接缝线网络的自动生成及优化方法[J].测绘学报,2010,39(3).
[3] 杨文久.遥感数字图像的配准和镶嵌.中国遥感进展[M].万国学术出版社,1992,14-18.
[4] 李智明,朱紫阳.基于ArcObject二次开发的遥感影像裁切的实现[J].地理空间信息, 2008,6(4):37-39.
[5] 陈文彬.基于GDAL的遥感影像快速裁切技术[J].测绘与空间地理信息,2016,39(4):150-152.
[2] 潘俊,王密,李德仁.接缝线网络的自动生成及优化方法[J].测绘学报,2010,39(3).
[3] 杨文久.遥感数字图像的配准和镶嵌.中国遥感进展[M].万国学术出版社,1992,14-18.
[4] 李智明,朱紫阳.基于ArcObject二次开发的遥感影像裁切的实现[J].地理空间信息, 2008,6(4):37-39.
[5] 陈文彬.基于GDAL的遥感影像快速裁切技术[J].测绘与空间地理信息,2016,39(4):150-152.