Total focusing method for non destructive evaluation: Toward real-time imaging systems

This paper describes a dedicated architecture for real-time imaging using the Total Focusing Method (TFM) and an advanced acquisition technique called the Full Matrix Capture (FMC). The architecture was entirely described using VHDL language and implemented on a V5FX70T Xilinx FPGA for the control part and a V5SX95T Xilinx FPGA for the acquisition part. The architecture is able to perform real-time FMC-TFM imaging at a maximum frame rate of 73 frames/s and a maximum resolution of 128×128 pixels, which is sufficient as a performance for a real-time imaging with a good characterization of defects in the non destructive evaluation context.