Photoelectric detection system in equipment for recognition and sorting of bills

Jihong Liao; Baozhi Yin; Wenwei Lao; Hua Xie M.D.

doi:10.1117/12.318343

10 August 1998 Photoelectric detection system in equipment for recognition and sorting of bills

Jihong Liao, Baozhi Yin, Wenwei Lao, Hua Xie M.D.

Proceedings Volume 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II; (1998) https://doi.org/10.1117/12.318343
Event: Photonics China '98, 1998, Beijing, China

Abstract

This paper reports a photoelectric detection system in the recognition and sorting equipment of bills. A SSPA line scan image senor is used as the photodetector in the system. A new type fiberoptic lens is used in the optical subsystem instead of the ordinary optical lens. The video output of the SSPA sensor is processed by a microprocessor in real- time. When properly programmed, the system can determine the detected bills; quality as well as denominations. This paper discuses the principle and composition of the system. The drive of the SSPA sensor,the video output processing, the collection of the binary video output and the data processing program are discussed in detail. The resolution in the movement direction and in the scan direction and in the scan direction are also analyzed. The system can efficiently recognize the RMB bills of Y10, Y50 and Y100 denomination and can also detect the bills with holes and/or tears whose series are larger than 1 mm by 1 mm.

Citation Download Citation

Jihong Liao, Baozhi Yin, Wenwei Lao, and Hua Xie M.D. "Photoelectric detection system in equipment for recognition and sorting of bills", Proc. SPIE 3558, Automated Optical Inspection for Industry: Theory, Technology, and Applications II, (10 August 1998); https://doi.org/10.1117/12.318343

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