Low-cost and high-speed optical mark reader based on an intelligent line camera

Stephan Hussmann; Leona Chan; Celine Fung; Martin Albrecht

doi:10.1117/12.484827

6 August 2003 Low-cost and high-speed optical mark reader based on an intelligent line camera

Stephan Hussmann, Leona Chan, Celine Fung, Martin Albrecht

Proceedings Volume 5106, Optical Pattern Recognition XIV; (2003) https://doi.org/10.1117/12.484827
Event: AeroSense 2003, 2003, Orlando, Florida, United States

Abstract

Optical Mark Recognition (OMR) is thoroughly reliable and highly efficient provided that high standards are maintained at both the planning and implementation stages. It is necessary to ensure that OMR forms are designed with due attention to data integrity checks, the best use is made of features built into the OMR, used data integrity is checked before the data is processed and data is validated before it is processed. This paper describes the design and implementation of an OMR prototype system for marking multiple-choice tests automatically. Parameter testing is carried out before the platform and the multiple-choice answer sheet has been designed. Position recognition and position verification methods have been developed and implemented in an intelligent line scan camera. The position recognition process is implemented into a Field Programmable Gate Array (FPGA), whereas the verification process is implemented into a micro-controller. The verified results are then sent to the Graphical User Interface (GUI) for answers checking and statistical analysis. At the end of the paper the proposed OMR system will be compared with commercially available system on the market.

Citation Download Citation

Stephan Hussmann, Leona Chan, Celine Fung, and Martin Albrecht "Low-cost and high-speed optical mark reader based on an intelligent line camera", Proc. SPIE 5106, Optical Pattern Recognition XIV, (6 August 2003); https://doi.org/10.1117/12.484827

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