Elliptical kernels in CNN

Hi everyone
Our teacher asked me to use the model shown in the image.
We have a 3D representation of the magnetic simulation. True magnetic sequences must be classified. I did a lot of searching but found nothing useful.
I know that each slice has Elliptical kernels and know elipse formula from wikipedia, as shown in the images below, but I’m not sure how to implement it with CNNs. That’s something I’m not sure about either.

How can I use Elliptical kernels in CNN’s first layers?
Can I use Elliptical kernels as an attention vector, as shown in the image below?

thank you