Wow 480 vertical pixels is not bad when you consider current generation M1 macs have merely 720 vertical pixels in its built in web cam.
Products of the era would provide 30fps at 176x144, over the parallel port [1].
https://linuxtv.org/wiki/index.php/Brooktree_Bt848
https://www.linuxtv.org/wiki/index.php/Bttv_devices_(bt848,_...