convolution is a measure of overlap between two functions as one slides over the other mathematically it's a sum of products the standard convolution operation is slow to perform however we can speed this up with an alternative method that is the topic of this video depth wise separable convolution let's first very quickly go over the basics of convolution on an input volume consider an input volume f.o shape d f cross d f cross m where DF is the width and height of the input volume and M is the number of input channels if a color image was