As a huge fan of 8-bit titles from the golden age of the 80's, I can't help but feeling like these pieces are a kind of pixel art. The intricate detail and consideration for colour placement, while also reducing the load to a minimum (those amazing glyph bitmaps!) is very much aligned between these works, worlds apart..
A quick check says it doesn't meet the definition, but they seem pretty similar to me. They are conceptually similar and I think the automated embroidering machines, those that turn pictures into patterns and then stitch them, work on that principle.
I think...
I could maybe ask the lady at the Grange Hall. She has one of those machines. Err... Don't tell her, but the output is uninspiring.