The International Civil Aviation Organization (ICAO) is responsible for setting up standards for Machine Readable Travel Documents (MRTD). MRTD makes it easy for automated travel documents checking. It’s much faster and less tends to make mistakes than manual input.

 MRTD have a Machine Readable Zone (MRZ) at the bottom. These MRZes are printed in the monospace font OCR-B. Passport is included in MRTD. It has two lines and each line has 44 characters. The following picture shows the pattern of a passport: 

 And here is another example of MRZ:  

          Passport Reader is ICAO standard MRZ reader, it extract users’ name, nationality, sex, birthday, expiry date and other information for machine readable zone. Apart from this, it can also read multiple document types: visas, ID cards and some driver license. Until now, there are over 90 countries and areas issue and use e-passport (namely digital passport) that are complied with the International Civil Aviation Organization’s (ICAO) Doc 9303 specification. Wintone designed and developed Passport Reader with high-precision OCR algorithm and barcode technology that can be used in a wide range of area.