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literum t1_iy9spar wrote

Could you give a reference for "V1 features"? I couldn't find anything googling.


beezlebub33 t1_iy9tozq wrote

V1 refers the the mammalian primary visual cortex.

Cells in V1 respond to simple features such as lines of various orientations, certain simple frequencies, colors, etc. the article discusses it more.

The first layer of a CNN does something similar.


SlayahhEUW t1_iya6l1f wrote

Roughly it's the base mammalian feature extractors. This can also be found by performing principal component analysis of the data, the first layer of a CNN will after training have the same representation as the PCA of the data.