模式识别；可视化；多元数据；图表示；几何代数；子空间坐标；优化。
Pattern Recognition; Visualization; Multivariate Data; Graphical Representation; Geometric Algebra; Subspace Coordinates; Optimization.
不变矩的几何变换不变性特点，使其在模式识别、计算机视觉和图像重构中被广泛使用。
For geometric invariance of the invariant moment, it has been used in pattern recognition, computer vision and image reconstruction.
图像的几何性质，比如区域周长和连通分量，在图像分割和模式识别领域得到了广泛的应用。
Geometric properties, such as perimeter and connected component, have been widely used in image segmentation and pattern recognition.
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