Filtering Method for Phase Fringe Patterns in the Digital Speckle Pattern Interferometry

摘要：

　　The phase fringe patterns obtained by the phase shifting technique are inherently full of speckle noise in Digital Speckle Pattern Interferometry (DSPI),.The phase fringe patterns filtering method is very important to obtain the precisely deformation information.In this paper a effective method for filtering the speckle noise of phase fringe patterns is applied,the method filter the discrete images which generated from phase fringe patterns instead of classical filtering phase fringe patterns directly.Comparing with existed filters method,it has a better performance on phase jump information preservation and does not have any blurring effect on the phase distribution providing the filtering is implemented on the equal-phase window.Moreover,its capability of noise reduction is more powerful.An optical measurement system based on DSPI is built to demonstrate the filtering method,and the experiment results have shown the effectiveness and advantages of the filter method.

关键词： DSPI speckle noise filters method phase fringe patterns

作者: Yonghong Wang Weihua Bu Junrui Li Jianfei Sun Lianxiang Yang

作者单位: School of Instrument Science and Opto-electronic Engineering,Hefei University of Technology, Hefei 2 School of Instrument Science and Opto-electronic Engineering,Hefei University of Technology, Hefei 2

会议类型: 国际会议

会议名称: 2012第八届精密工程测量和仪器仪表国际研讨会(ISPEMI2012)

会议地点: 成都

会议语种:英文

页码: 1-6

在线出版日期: 2012-08-08（万方平台首次上网日期，不代表论文的发表时间）