[计] low resolution self-scan pattern recognition

dī fēn biàn dù zì sǎo miáo mó shì shí bié ㄉㄧ ㄈㄣ ㄅㄧㄢˋ ㄉㄨˋ ㄗˋ ㄙㄠˇ ㄇㄧㄠˊ ㄇㄛˊ ㄕˋ ㄕˊ ㄅㄧㄝˊ