Conventional response analyzers use various student devices such as clickers and mobile devices, which require the additional burdens of charging and managing. Fiducial marker-based response analyzers have been proposed to relieve these burdens. The IDs and rotations of the fiducial markers are used to identify students and their respective answers. The marker-based approach is straightforward, but transferrable data are limited to the ID and the rotations. To enhance the transferrable data, we introduce a method of extracting curves of the marker sheet. Since a paper sheet is flexible, students can control the shape of the sheet intuitively. We have implemented our method by modifying a conventional fiducial marker recognizer and confirmed its effectiveness. 2015 International Conference on Informatics, Electronics and Vision (ICIEV), Fukuoka, Japan, June 15, 2015 to June 18, 2015
Faculty of Engineering Kyushu Institute of Technology Graduate School of Engineering Kyushu Institute of Technology
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