Dynamic focal spots registration algorithm for freeform surface measurement

• Main Authors: Guo, Wenjiang, Zhao, Liping, Chen, I-Ming
• Other Authors: School of Mechanical and Aerospace Engineering
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/98258; http://hdl.handle.net/10220/13365
• Institution: Nanyang Technological University

In a wavefront sensing system, the raw data for surface reconstruction, either the slope matrix or curvature matrix, is obtained through centroiding on the focal spot images. Centroiding is to calculate the first moment within a certain area of interest, which encloses the focal spot. As the distrib...