What is the meaning of Kenel size 1x7 in CNN (Inception Network)

Hi Guys,

I am building Inception network for my project and come through the kernel size 1x7 or 7x1 and some of its variant. what does it mean.

7 x 1 means its width is 1 and depth is 7 (a column vector)
On the other hand, 1 x 7 mean its width is 7 and depth is 1 (a row vector)

Both of them are one dimensional but using conv2d.

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