摘要
为了实现百幅无人机影像自动无缝拼接技术,以黄淮海平原的3个典型区为实验对象,基于航拍影像质量评价,运用特征的控制点配准算法和图像灰度融合的对比度调制法,开展上百幅多航带影像快速拼接实验。结果表明,航片质量最好的是洪泽湖地区,航带和影像扭曲度不高,其次是白洋淀地区,而黄河口地区的航高差值、航带弯曲度和最大旋转度相比较高,说明航带扭曲度高,航片偏移中心线的程度较大。以江苏省洪泽湖区QuickBird影像和实地监测点与航片做精度验证高达81.26%,说明此技术是可靠和可行的,对无人机航拍影像拼接工作具有一定的实用价值和科学参考依据。
The paper takes Baiyangdian area in Hebei province,Yellow River Mouth area in Shandong province and Xuyi county in Jiangsu province as experimental regions,based on evaluation of aerial image quality,using control points matching algorithm and contrasts modulation method to achieve hundreds of UAV（Unmanned Aircraft Vehicle） images automatic seamless mosaic.Results show that the best quality aerial image is at Hongze Lake area,because flight zone and image distortion is not high;followed by Baiyangdian areas;the flying height difference,flight zone bending degree and maximum rotation degree of the Yellow River Mouth area are relatively high,which indicates the flight zone has a high twist degree,extent offsetting the center line of aerial images is heavy.Taking QuickBird remote sensing images of Hongze Lake in Jiangsu province and field monitoring sites verify the accuracy,which reaches at 81.26%,then certifies that result is reliable and feasible,and provides scientific references for work of UAV remote sensing images automatic seamless mosaic.
出处
《遥感技术与应用》
CSCD
北大核心
2012年第3期347-352,共6页
Remote Sensing Technology and Application
基金
国家自然科学基金项目(41101174)
成都理工大学青年科学基金项目(2010QJ08)
成都理工大学高层次人才科研启动基金(HJ0070)
关键词
无人机遥感影像
无缝拼接
控制点配准算法
对比度调制法
UAV Remote Sensing Image
Seamless Mosaic
Control points matching algorithm
Contrast modulation method
