使用这些工具，分析人员可以更精确地识别地面特征，如伪装迷彩服和树木之间的区别。

Using these tools, analysts can more precisely identify ground features such as distinguishing between camouflaged fatigues and trees.

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特征提取的依据是利用有关数学工具，去掉对分类无用的信息，寻找最有效的信号特征来构成用于分类识别的模式特征向量。

The extracting process is to throw off the useless information and look for the most efficient signal feature to form a pattern feature vectors for classification with mathematics tools.

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该产品具有无法仿制特征，不需要任何工具即可识别，肉眼平视防伪标签，可见全真立体图像。

This product has not imitation characteristics, does not require any tools to identify visually flat as security labels, visible all true stereoscopic image.

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