矩不变量在图像进行平移、旋转和尺度变换时保持定值，因此被广泛使用在目标识别、图像分类、图像压缩和场景匹配等各种领域。
The invariable moment, which is invariable to the translation, scaling and rotation of image, is widely used in object recognition, image classification, image condensation, scene matching and so on.
介绍一种用矩不变量跟踪天气雷达回波，以估测回波区域内部流场的方法。
A new moment invariant method was presented to evaluate the flow field within weather radar echo.
图像矩不变量被提取出来作为图像的索引，来生成依赖于原始图像的、攻击者不知道且不同图像不同的水印。
Image moment invariants are extracted as the index to generate the image-dependent watermark, which is unknown to the attacker and different for different images.
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