Document Type

Conference Proceeding

Conference

Dimensional Optical Metrology and Inspection for Practical Applications III

Publication Date

5-2014

DOI

10.1117/12.2050534

City

Baltimore, MD

Abstract

This paper presents our comparing study on active and passive methods for compensating the phase error induced by the projector nonlinear gamma effect. The active method modifies the fringe patterns before their projection; and the passive method, in contrast, compensates for the phase error after capturing fringe patterns. Our study finds that the active method tends to provides more consistent high-quality fringe patterns regardless the amount of projector’s defocusing; yet the effectiveness of the passive method is sensitive to the measurement conditions, albeit the passive method could provide equally good quality phase under the optimal calibration condition. Experimental results will be presented to compare these two different methods.

Comments

This is a conference proceeding from Dimensional Optical Metrology and Inspection for Practical Applications III 9110 (2014): 1, doi:10.1117/12.2050534. Posted with permission.

Copyright 2014 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.

Copyright Owner

Society of Photo-Optical Instrumentation Engineers

Language

en

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