A novel technique that uses a fan two-dimensional (2D) continuous wavelet transform (CWT) to phase demodulate fringe patterns is proposed. The fan 2D CWT algorithm is tested by using computer generated and real fringe patterns. The result... more
... Hong Zhang Corresponding Author Contact Information , Michael J. Lalor, David R. Burton. Liverpool John Moores University, School of Engineering, Coherent and Electro-Optics Research Group, Byrom Street, Liverpool L3 3AF, UK.... more
In this paper, we propose a simple method for processing a 2D wrapped phase map that contains a spatial carrier signal in order to completely eliminate, or greatly reduce, the number of phase wraps in the image. The 2D Fourier transform... more
A contact microphone using optical fibre Bragg grating has been developed. It enables one to listen and record a human voice and/or breathing by monitoring the vibration generated by the outer wall of the throat during speech. This system... more