Design and implementation of a high-throughput piecewise approximate bilateral filter on FPGA for automated optical inspection systems
A K=16 piecewise-linear approximation of the Gaussian range kernel has been used to avoid exponential evaluation hardware and reduced coefficient storage by a factor of 32 and a piecewise approximate bilateral filter structure is proposed and realised on the Xilinx Zynq XC7Z020 System-on-Chip (SoC) in this paper.