Indexed by:期刊论文
Date of Publication:2013-01-01
Journal:光电子·激光
Included Journals:Scopus、EI、PKU、ISTIC、CSCD
Volume:24
Issue:12
Page Number:2377-2382
ISSN No.:1005-0086
Key Words:阶梯相位; 相位测量轮廓术(PMP); 相位去包裹; 条纹分析
Abstract:为减少投影条纹数量,提高测量速度,提出了一种改进的阶梯相位去包裹算法。算法采用彩色条纹投影测量物体三维形貌,将正弦和阶梯相位条纹分别输入彩色图像
的红色和蓝色通道构成彩色条纹,由DLP投影仪将四步相移彩色条纹投影到待测物体上,由彩色CCD相机采集。利用颜色分离技术得到2组四步相移条纹图,其
中一组为4幅正弦条纹,由四步相移法求得正弦条纹包裹相位,另一组4幅阶梯相位编码条纹图,由与正弦条纹周期一致的阶梯相位构成,经阶梯相位解码确定条纹
级次,利用自校正算法去除条纹级次噪点后,实现相位去包裹。进行了实际测量,结果表明,本方法测量精度与采用四步相移法相当,但只需4幅条纹图,有效减少
了投影和采集的条纹数量,提高了测量速度。
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology (DUT)
Degree:Doctoral Degree
School/Department:State Key Laboratory of Industrial Equipment for Structral Analysis, Department of Engineering Mechanics
Discipline:Solid Mechanics. Applied and Experimental Mechanics. Engineering Mechanics. Mechanical Manufacture and Automation. Vehicle Engineering. Aerospace Mechanics and Engineering. mechanics of manufacturing process
Business Address:Room 321, Department of Engineering Mechanics
Contact Information:Tel.: 86 0411-84708406 Email: leizk@dlut.edu.cn
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