Online phase measuring profilometry for rectilinear moving object by image correction

Han Yuan; Yi-Ping Cao; Chen Chen; Ya-Pin Wang

doi:10.1117/1.OE.54.11.113104

11 November 2015 Online phase measuring profilometry for rectilinear moving object by image correction

Han Yuan, Yi-Ping Cao, Chen Chen, Ya-Pin Wang

Author Affiliations +

Optical Engineering, Vol. 54, Issue 11, 113104 (November 2015). https://doi.org/10.1117/1.OE.54.11.113104

Abstract

In phase measuring profilometry (PMP), the object must be static for point-to-point reconstruction with the captured deformed patterns. While the object is rectilinearly moving online, the size and pixel position differences of the object in different captured deformed patterns do not meet the point-to-point requirement. We propose an online PMP based on image correction to measure the three-dimensional shape of the rectilinear moving object. In the proposed method, the deformed patterns captured by a charge-coupled diode camera are reprojected from the oblique view to an aerial view first and then translated based on the feature points of the object. This method makes the object appear stationary in the deformed patterns. Experimental results show the feasibility and efficiency of the proposed method.

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Han Yuan, Yi-Ping Cao, Chen Chen, and Ya-Pin Wang "Online phase measuring profilometry for rectilinear moving object by image correction," Optical Engineering 54(11), 113104 (11 November 2015). https://doi.org/10.1117/1.OE.54.11.113104

Published: 11 November 2015

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