摘要
提高匹配精度和效率是摄影测量的主要研究内容之一。本文基于统计模型计算窗口灰度波动及视差波动,根据视差和其不确定性估计调整窗口。在调整窗口的同时确定最佳匹配点位,实现动态窗口匹配,匹配精度达到子像素级。通过对无人机影像匹配的实验结果验证了模型的有效性和实用性。
To improve the precision and efficiency of matching is one of the main research contents of photogrammetry.Based on a statistical model this paper calculated the fluctuations of window＇s disparity and intensity.Then,the window-sizes were adjusted according to the disparity and its uncertainty estimate.When the window was adjusted,the optimal matching point was ascertained.Hence,the dynamical window matching is realized and the precision of matching is sub-pixel.Experiments on Unmanned Air Vehicles＇image matching have validated the effectiveness and practicability of the model.
出处
《测绘科学》
CSCD
北大核心
2010年第6期5-8,共4页
Science of Surveying and Mapping
基金
国家科技支撑计划(编号:2006BAB15B0102)
863重点项目(编号:2008AA121305-5)
关键词
匹配窗口
自适应窗口匹配
视差增量
不确定性估计
matching window
adaptive window matching
disparity increment
uncertainty estimate
