R. Lorie, IBM Almaden Res. Center, San Jose, CA, USA
We describe a prototype system for reading IATA flight coupons. The system exploits various characteristics of IATA coupons to determine reliably coupon types and field boundaries, and to minimize the amount of manual keying. In particular, we propose a method for extracting and recognizing fixed-pitch characters on noisy images with a complex background. The method does not require a complete drop-out of background, pre-printed text, or lines before recognition, and allows for recovering partially damaged characters (e.g., overlap with form content, handwritten annotations, etc.).
Index Terms:
document image processing; IATA flight coupon reading; prototype system; coupon types; field boundaries; manual keying; fixed-pitch character recognition; noisy images; complex background; damaged character recovery; handwritten annotation; International Air Transport Association
Citation:
Jianchang Mao, R. Lorie, K. Mohiuddin, "A system for automatically reading IATA flight coupons," icdar, pp.153, Fourth International Conference Document Analysis and Recognition (ICDAR'97), 1997