TL;DR: the "wear" pattern are those light/dark marks on both sides of pants, along the seam, that would be "unique" to each jeans isn't enough to give a "true p

TL;DR: the "wear" pattern are those light/dark marks on both sides of pants, along the seam, that would be "unique" to each jeans isn't enough to give a "true positive" identification keeping the "false positives" low enough.