Shape recognition of object is important research direction in pattern recognition, and is widely used in image analysis, machine vision and target discrimination.

物体的形状识别是模式识别的重要方向，广泛应用于图像分析、机器视觉和目标识别等领域。

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An improving noise eliminated difference template based on the analysis of object and background gray value also has been developed to eliminate the low frequency noise in image.

对图像中的低频噪声，基于对图像中目标与背景灰度值特点的分析，提出了改进的差分去噪声模板。

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Shape recognition of object is one of the important directions in pattern recognition, and is widely used in image analysis, machine vision and target discrimination, etc.

物体的形状识别是模式识别的重要方向之一，广泛应用于图像分析、机器视觉和目标识别等领域。

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