It's a key problem to search for affine invariant with respect to translation, scaling, rotation and skewing in multi-resolution analysis.
寻找相对于平移、尺度、旋转、扭曲不变的仿射不变量是现今多尺度分析在模式识别中应用的关键性问题。
This representation is invariant to the translation, rotation, and scaling change of the object.
这种表示是客体平移、旋转和相似变化的不变量。
As SIFT features are invariant to rotation and scaling, we employ SIFT to extract feature points.
由于SIFT特征对旋转和缩放具有不变性，该算法利用SIFT提取图像的特征点。
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