中国机械工程2017，Vol.28Issue(8)：936-940,945,6.DOI:10.3969/j.issn.1004-132X.2017.08.010
先验概率与曲线概率阈值分割相结合的消噪方法
Noise Cancellation Algorithm Method Combinated Priori Probability with Curve Probability Threshold Segmentation
摘要
Abstract
The original point cloud data acquired from two dimensional laser scanner had noises, and the noises affected measurement accuracy.For this problem,a noise cancellation algorithm meth-od combinated priori probability with curve probability threshold segmentation was proposed.Two di-mensional laser scanner scaned the profiled annular section,and was used as experimental obj ect,then acquired original point cloud data .The proposed de-noising method dealt with the original point cloud data and got noise cancellation data.The original point cloud data and noise cancellation data were used to calculate the heights of the ring steps.Comparisons of calculated values and real values show that the calculated values for data de-noising are closer to the true values of the ring.The experimental results prove that the noise cancellation method may effectively improve measurement accuracy.关键词
二维激光扫描仪/点云消噪/先验概率/曲线概率阈值分割/异形截面环形件/外部轮廓线Key words
two dimensional laser scanner/point cloud denoising/priori probability/probability threshold curve segmentation/profiled annular section/outer contour line分类
信息技术与安全科学引用本文复制引用
张玉存,徐飞,付献斌..先验概率与曲线概率阈值分割相结合的消噪方法[J].中国机械工程,2017,28(8):936-940,945,6.基金项目
国家自然科学基金资助项目(51675469) （51675469）
河北环境工程学院科研基金资助项目(BJ201603) （BJ201603）
