@article{ART002967644},
author={Kim Chan and Yun Young-Sun},
title={Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR},
journal={Journal of Software Assessment and Valuation},
issn={2092-8114},
year={2023},
volume={19},
number={2},
pages={41-48},
doi={10.29056/jsav.2023.06.05}
TY - JOUR
AU - Kim Chan
AU - Yun Young-Sun
TI - Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR
JO - Journal of Software Assessment and Valuation
PY - 2023
VL - 19
IS - 2
PB - Korea Software Assessment and Valuation Society
SP - 41
EP - 48
SN - 2092-8114
AB - In this paper, we have developed an automated scoring system for structured formalized answer sheets composed of printed problem numbers and handwritten answers. In the initial stage, we performed gradient normalization to accurately recognize the problem numbers and answers, and subsequently applied the EasyOCR Framework for character recognition. Notably, we introduced a location correction algorithm to accurately detect the positions of numbers, thereby improving the detection rate from the original 70% to 100%. The number recognition model of EasyOCR originally had an accuracy of 89%, but we improved it to 93% through transfer learning. Experimental results showed that the implementation of an automatic scoring system using EasyOCR was feasible, and this system is expected to increase the efficiency of grading tasks in the educational field.
KW - EasyOCR;Digit Recognition;Formalized Answer Sheets;Automated Grading;Transfer Learning
DO - 10.29056/jsav.2023.06.05
ER -
Kim Chan and Yun Young-Sun. (2023). Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR. Journal of Software Assessment and Valuation, 19(2), 41-48.
Kim Chan and Yun Young-Sun. 2023, "Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR", Journal of Software Assessment and Valuation, vol.19, no.2 pp.41-48. Available from: doi:10.29056/jsav.2023.06.05
Kim Chan, Yun Young-Sun "Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR" Journal of Software Assessment and Valuation 19.2 pp.41-48 (2023) : 41.
Kim Chan, Yun Young-Sun. Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR. 2023; 19(2), 41-48. Available from: doi:10.29056/jsav.2023.06.05
Kim Chan and Yun Young-Sun. "Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR" Journal of Software Assessment and Valuation 19, no.2 (2023) : 41-48.doi: 10.29056/jsav.2023.06.05
Kim Chan; Yun Young-Sun. Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR. Journal of Software Assessment and Valuation, 19(2), 41-48. doi: 10.29056/jsav.2023.06.05
Kim Chan; Yun Young-Sun. Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR. Journal of Software Assessment and Valuation. 2023; 19(2) 41-48. doi: 10.29056/jsav.2023.06.05
Kim Chan, Yun Young-Sun. Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR. 2023; 19(2), 41-48. Available from: doi:10.29056/jsav.2023.06.05
Kim Chan and Yun Young-Sun. "Implementation of an Automated Grading System for Formalized Answer Sheet Using EasyOCR" Journal of Software Assessment and Valuation 19, no.2 (2023) : 41-48.doi: 10.29056/jsav.2023.06.05