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基于线结构光的复杂深孔内轮廓三维测量方法

Keywords: 线结构光,复杂深孔,三维测量,细线化,灰度重心法

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Abstract:

为了对孔内轮廓参数进行快速高精度测量,建立了一种基于线结构光的复杂深孔内轮廓三维测量系统.介绍了系统构成及测量原理、数学模型建立以及孔内截面轮廓尺寸计算方法.提出形态学光条细线化与灰度重心法相结合提取亚像素光条中心线算法.应用该系统对直径φ130.0mm的复杂孔内轮廓进行实验,测量长度70mm时,阳线圆直径测量误差为±32μm,阴线圆直径测量误差为±54μm.

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