贾书海
- 教授
- Supervisor of Doctorate Candidates
- Supervisor of Master's Candidates
- E-Mail:
- Date of Employment:2003-12-01
- Education Level:With Certificate of Graduation for Doctorate Study
- Professional Title:教授
- Status:Employed
- Alma Mater:西安交通大学
- College:School Of Mechanical Engineering
- Discipline:Mechanical Engineering
- Papers
Multi-frequency Projected Fringe Profilometry for Measuring Objects with Large Depth Discontinuities
Release Time:2025-04-30 Hits:
- Date:2025-04-30
- Title of Paper:Multi-frequency Projected Fringe Profilometry for Measuring Objects with Large Depth Discontinuities
- Journal:Optics Comunications（中科院 3区）
- Summary:A multi-frequency projected fringe profilometry for measuring objects with large-depth discontinuities is proposed. Fringe patterns with multi spatial frequencies are projected onto an object-target. The wrapped phase maps in different spatial frequencies are obtained through a phase shifting method. The height of each point of the object surface can be obtained independently by finding the peak value in the exponential sums of the wrapped phases with different spatial frequencies. Several measured results on real objects are presented. This method avoids phase unwrapping and the height of each point is measured independently. Therefore, it is inherently simple and robust. This approach can be used for objects with complex shapes and large-depth discontinuities.
- Co-author:Yong Xu, Shuhai Jia, Xing Luo, etc.
- Translation or Not:No
- Date of Publication:2012-09-20