So a method of image recognition with rotation and scale invariance is required to satisfy the practical application.
因此，需要寻找一种具有旋转和比例不变性的图像识别方法，以满足实际应用中的需要。
Problem on scale-invariance, rotation-invariance and translation-invariance can be solved with this method.
解决了尺度变化、旋转和平移不变性问题。
Experiment results show that this method can keep good invariance under translation, rotation, scale and mirror, and the retrieved results match human visual perception very well.
实验证明，该方法具有良好的平移、缩放、旋转和镜像不变性，得到的检索结果能很好地符合人的视觉感受。
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