It increases the virtual samples by the method of combining mirror transform, integral map and geometric transform such as shifting, rotating and zooming.
将镜像变换、平移、旋转、缩放等几何变换手段与积分投影等方法相结合来增加虚拟样本。
To restore the lost synchronism, a novel method to estimate the geometric operation using sifted Scale-Invariant Feature Transform (sift) was proposed.
为了恢复已失去的同步信息，提出一种基于筛选尺度不变特征估计几何攻击参数的数字水印算法。
This paper puts forward, in the point, gravimetric geoid method, geometric geoid method and synthesis method to transform ellipsoid height into orthometric height.
基于此，扼要提出应用重力大地水准面法、几何大地水准面法和综合法将GPS椭球高改化为正高的方法。
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