Affiliation: | aDepartment of Electrical and Computer Engineering, Auburn Science and Engineering Center, E. Buchtel Mall, The University of Akron, Akron, OH 44325, United States bDepartment of Biomedical Engineering, Olson Research Center, The University of Akron, Akron, OH 44325, United States |
Abstract: | In this study, the design of a low-cost, field programmable gate array (FPGA)-based digital hardware platform that implements wavelet transform algorithms for real-time signal de-noising of optical imaging signals is presented. The proposed digital hardware de-noising platform can achieve a throughput of 25 Msamples per second, with a latency from input to output of 1.5 μs. The system fits on a 10K20, one of the smaller field programmable gate arrays from the Altera Flex 10K family, and represents a low-cost approach to signal de-noising. Preliminary experimental results clearly indicate the potential of the presented FPGA-based digital platform for real-time de-noising of signals utilized for the detection and imaging of surface defects and discontinuities. |