Phase recovery approach based on high dynamic range imaging

Jiapeng Liu; Zhengwu Yang; Hong Huo; Tao Fang

doi:10.1117/1.OE.57.5.054118

26 May 2018 Phase recovery approach based on high dynamic range imaging

Jiapeng Liu, Zhengwu Yang, Hong Huo, Tao Fang

Author Affiliations +

Optical Engineering, Vol. 57, Issue 5, 054118 (May 2018). https://doi.org/10.1117/1.OE.57.5.054118

Abstract

The phase-shifting algorithm is widely used for noncontact three-dimensional (3-D) reconstruction, traditionally leveraging gray values to recover phase angles. It is difficult to reconstruct the shape of an object with a specular or dark surface. We propose an algorithm for accurate phase recovery based on high dynamic range imaging. Unlike most existing methods that use gray values to calculate the phase angle, the proposed method uses E values, which are the recovered irradiance from low dynamic range images, to calculate the phase angle. Experiments show that the proposed method improves phase recovery accuracy and achieves good results for the 3-D reconstruction of specular or dark objects.

Citation Download Citation

Jiapeng Liu, Zhengwu Yang, Hong Huo, and Tao Fang "Phase recovery approach based on high dynamic range imaging," Optical Engineering 57(5), 054118 (26 May 2018). https://doi.org/10.1117/1.OE.57.5.054118

Received: 1 March 2018; Accepted: 27 April 2018; Published: 26 May 2018

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