FPGA Implementation for Fringe Pattern Demodulation Using the Two-Dimensional Continuous Wavelet Transform

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Provided by: International Journal of Engineering and Innovative Technology (IJEIT)
Topic: Hardware
Format: PDF
In this paper, the authors present a thorough discussion of the proposed FPGA implementation of a fringe pattern demodulation process using the Two-Dimensional Continuous Wavelet Transform algorithm (2D-CWT). This paradigm is also known as a Two-Dimensional Wavelet Transform Profilometry (2D-WTP) algorithm. Initially, the 2D-CWT was programmed using the C programming language and was then compiled into VHDL format using the ImpulseC tool. This VHDL code was subsequently implemented on the Altera Cyclone IV GX EP4CGX150DF31C7 FPGA. A source fringe pattern image with a size of 512×512 pixels was presented to the FPGA, which then processed the image using the 2D-CWT algorithm.
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