Mr. Heng Liu Profile

Heng Liu

at Univ at Buffalo

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Publications (2)

SPIE Journal Paper | 1 May 2004

Experimental verification of improvement of phase shifting moiré interferometry using wavelet-based image processing

Heng Liu, Alexander Cartwright, Cemal Basaran

OE, Vol. 43, Issue 05, (May 2004) https://doi.org/10.1117/12.10.1117/1.1690281

KEYWORDS: Continuous wavelet transforms, Diffraction gratings, Phase shifting, Deflectometry, Discrete wavelet transforms, Wavelets, Image processing, Phase shifts, Packaging, Fringe analysis

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SPIE Journal Paper | 1 September 2003

Sensitivity improvement in phase-shifted moiré interferometry using 1-D continuous wavelet transform image processing

Heng Liu, Alexander Cartwright, Cemal Basaran

OE, Vol. 42, Issue 09, (September 2003) https://doi.org/10.1117/12.10.1117/1.1592803

KEYWORDS: Continuous wavelet transforms, Deflectometry, Phase shifts, Signal to noise ratio, Bandpass filters, Phase interferometry, Image processing, Electronics, Interferometry, Wavelets

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