Compared with the traditional de-nosing methods by threshold value and translation invariance, the algorithm increases the signal to noise ratio.
与传统的阈值去噪法和基于平移不变量的去噪算法相比，该算法提高了信噪比。
However, the original contourlet transform has a certain redundancy and lacks translation invariance, it tends to have its limitation in the applications such as image processing.
但是，原始的轮廓波变换由于采用拉普拉斯塔式变换而存在一定的冗余度，并且缺乏平移不变性，因此在图像处理等应用中具有其局限性。
This paper analyses the influence of scale factor on moment invariant features in discrete, constructs a new moment invariant with both scale, translation and rotating invariance.
分析了在离散状态下比例因子对不变矩特征的影响，构造了一种新的不变矩，使其具有平移、旋转和比例因子的不变性。
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。
The results present that MEC has the invariance of translation, rotating and scaling, and the satisfied effects are acquired.
匹配结果表明，MEC具有平移、旋转和尺度不变的特性，在图像识别过程中取得了满意的效果。
In order to represent the spatial distribution information of image, a disorder matrix, which has the invariance to the rotation and translation of the image content, has been designed.
为了表示的图像的空间分布信息，一种疾病的矩阵，其具有的图像内容的旋转和平移的不变性，已被设计。
And the image feature descriptor has a rotation, translation, scaling invariance, etc. it can be a very good to describe the shape and spatial distribution of information.
且获得的图像特征描述符具有旋转、平移、尺度不变性等优点，能够很好地描述图像的形状和空间分布信息。
Experimental results show that this method can get higher recognition rate, with the property of translation and scaling invariance.
实验结果表明，该方法在复杂场景下可以获得较高的识别率，具有平移和尺度不变性等特点。
Precision locating for iris in the process of preprocessing makes iris image have invariance in translation, size and rotation.
预处理过程中对虹膜的精确定位，使定位后的虹膜图像具有平移、尺度和旋转的不变性。
Precision locating for iris in the process of preprocessing makes iris image have invariance in translation, size and rotation.
预处理过程中对虹膜的精确定位，使定位后的虹膜图像具有平移、尺度和旋转的不变性。
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