could someone please explain how to do the below question
Suppose a 3×3 convolution kernel is used in the first layer, a 2×2 convolution kernel is used in
the second layer and a 4×4 convolution kernel is used in the third layer. What is the receptive field of
the element of the output of the third layer?
is there a general equation to solve the above problem? im relatively new to CNN so any help is appreciated
thanks in advance!
i did read the dive into deep learining book but could understand anything
>Solution :
From: https://theaisummer.com/receptive-field/
For two sequential convolutional layers 2,1 f2,f1 with kernel size k,
stride s, receptive field r:
r1=s2×r2+(k2−s2)
Although, I don’t know how useful that really is for you… Think of receptive field like looking through a straw with your own eyes… A really narrow straw will limit your "receptive field" making it more difficult to actually discern what you are looking at or seeing