While working on my current Master's thesis involving FPGA development, I found that it was hard to find readable examples of intrinsically two-dimensional filters that cannot be simply decomposed into a horizontal and a vertical convolution, in a way that e.g. a Gaussian filter or a Sobel filter can. Non-separable convolutions or filters require you … Continue reading A tutorial on non-separable 2D convolutions in Vivado HLS →