大梯度复杂物体三维形面测量中滤波器的选择

Choice of Filter on Big Gradient and Complex 3-D Shape Measurement

根据傅立叶变换法检测曲面形貌对滤波频率响应的要求,提出两种频域低通滤波器(指数滤波器,矩形余弦低通滤波器),在对具有大梯度和急剧变化细节的物体形面测量方面,有很好滤波性能。最后给出一个实验,证明了这两种滤波器的适用性和有效性。

The paper presents two kinds of frequency domain low pass filter improving performance on big gradient and complex 3-D shape measurement,according to the requirement of filter frequency response on Fourier Transform Profilometry.Finally,the experiment proves the practicality and validity.