The feature points are clustered in this subspace using a graph spectral approach.

的特征点都聚集在此子空间使用的光谱的曲线图的方法。

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The main methods adopted include:1) watermark synchronization is achieved by invariant local circular regions which can be generated using image locally most stable feature points;

采取的主要方法有：1）利用图像中的局部最稳定特征点生成具有几何不变性的圆形特征区域，用于水印的同步；

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However, when estimating facial shapes using current facial landmarks detecting methods, the locating error of feature points around the mouth region is relatively large.

然而，用现有的人脸特征点定位算法进行人脸形状估计时，嘴巴区域特征点的定位误差相对较大。

youdao

This is a nice feature, but unfortunately sometimes is required because touching small points on the screen do not respond without using the pen.

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