TY - CONF T1 - <title>Building an optical pattern recognizer</title> JO - SPIE Proceedings UR - https://doi.org/10.1117/12.44853 PY - 1991/08/01 AU - Lindberg PC AU - Gregory DA ED - Libby V DO - DOI: 10.1117/12.44853 PB - SPIE VL - 1470 SP - 220 EP - 225 Y2 - 2026/02/04 ER -