Phase Image Segmentation and Filtering Algorithm Based on Direction of the Gradient Factor

Chi Zhang; Zhong Wei Li; Yu Sheng Shi

doi:10.4028/www.scientific.net/AMM.670-671.1488

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 670-671Phase Image Segmentation and Filtering Algorithm...

Phase Image Segmentation and Filtering Algorithm Based on Direction of the Gradient Factor

Abstract:

To satisfy rigid performance specifications of structure light measurement by phase shift method, the algorithm of phase image segmentation and filter based on direction of the gradient factor was introduced in this paper. In this method, phase image was divided into three parts by condition of extreme value and direction of the gradient factor, including continuous area, edge area and regional noise. Only phase data in continuous area was processed by median filter. This method can reduce the point matching computation of 3-D reconstruction, and at the same time can protect the image edge details, so as to reduce the noise data, provide accurate and effective phase data for reconstruction. Results of segmentation verify feasibility and effectiveness of presented method.

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Periodical:

Applied Mechanics and Materials (Volumes 670-671)

Pages:

1488-1492

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.670-671.1488

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Online since:

October 2014

Authors:

Chi Zhang*, Zhong Wei Li, Yu Sheng Shi

Keywords:

Direction of the Gradient Factor, Extremum Median Filtering, Phase Image Segmentation, Phase Shift Method, Structure Light Measurement

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References

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