摘要
提出一种新的更具普适性的相位高度映射关系,测量中无需考虑系统双瞳连线是否与参考面平行以及成像系统光轴是否与参考面垂直。该映射关系有效地将待标定系数与标定采样点的像素坐标分离开来,系统校准时只需标定与采样点坐标位置无关的常系数,大大减少标定采样点数目,且在校准过程中只需2个标定平面。实验证实了该方法的有效性和正确性。
A novel and universal mathematical description of the phase-to-height mapping relationship under divergent illumination is presented, which meets the condition of the imaging system axes being not perpendicular to the reference plane and the link of system＇ s two pupils being not parallel to the reference plane. In the proposed method, the undetermined coefficients are separated from the coordinate system, which are independence to the coordinate system, so the amount of sampling points for calibration is reduced greatly, and only two calibration planes are required. The experiment has verified the feasibility and validity of the proposed method.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2011年第12期188-194,共7页
Chinese Journal of Lasers
基金
国家重大专项(2009ZX02204-008)
四川省学术和技术带头人培养基金(07GRC-01)
湖北省教育厅自然科学研究项目(B201001203)资助课题
关键词
测量
三维面形测量
条纹投影轮廓术
相位高度映射
校准
简化
measurement
three-dimensional shape measurement
fringe projection profilometry
phase-to-heightmapping
calibration
simplifying
