Optoelectronic imaging of speckle using image processing method

Jinjiang Wang; Pengfei Wang

doi:10.1117/12.2288070

12 January 2018 Optoelectronic imaging of speckle using image processing method

Jinjiang Wang, Pengfei Wang

Proceedings Volume 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology; 1062012 (2018) https://doi.org/10.1117/12.2288070
Event: International Conference on Optical Instruments and Technology 2017, 2017, Beijing, China

Abstract

A detailed image processing of laser speckle interferometry is proposed as an example for the course of postgraduate student. Several image processing methods were used together for dealing with optoelectronic imaging system, such as the partial differential equations (PDEs) are used to reduce the effect of noise, the thresholding segmentation also based on heat equation with PDEs, the central line is extracted based on image skeleton, and the branch is removed automatically, the phase level is calculated by spline interpolation method, and the fringe phase can be unwrapped. Finally, the imaging processing method was used to automatically measure the bubble in rubber with negative pressure which could be used in the tire detection.

Citation Download Citation

Jinjiang Wang and Pengfei Wang "Optoelectronic imaging of speckle using image processing method", Proc. SPIE 10620, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Imaging/Spectroscopy and Signal Processing Technology, 1062012 (12 January 2018); https://doi.org/10.1117/12.2288070

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