The representation has no weight factors or control parameters, and it is geometric and affine invariant.
该表示形式中没有权因子和额外的控制参数，而且具有几何不变性、仿射不变性等良好性质。
2
The image watermark scheme based on Scale Invariant feature Transform (SIFT) feature is proposed for resisting geometric attacks.
提出一种利用尺度不变特征变换(SIFT)特征点实现对抗几何攻击的水印方案。
3
In this paper, a stereo matching method for image uncalibrated camera parameter is proposed, which is based on geometric affine invariant and photometric invariant.