{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,8]],"date-time":"2026-06-08T14:45:20Z","timestamp":1780929920778,"version":"3.54.1"},"reference-count":27,"publisher":"MDPI AG","issue":"9","license":[{"start":{"date-parts":[[2019,8,22]],"date-time":"2019-08-22T00:00:00Z","timestamp":1566432000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003725","name":"National Research Foundation of Korea","doi-asserted-by":"publisher","award":["NRF-2017R1D1A1A09000774"],"award-info":[{"award-number":["NRF-2017R1D1A1A09000774"]}],"id":[{"id":"10.13039\/501100003725","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>The most popular way of learning oriental calligraphy has been by practicing the calligraphy under the supervision of a human teacher, but finding a good instructor can be difficult. There are a number of studies in the literature that have evaluated calligraphic characters in holistic ways, but such systems do not support detailed supervision of scripting errors. This study proposes a Kanji calligraphy learning system with computerized supervision and analyzes the learning efficiency of the system, where the supervision includes symmetries between strokes. The proposed system compares a written calligraphic character of a user to the model of a human expert, and indicates error spots with explanations. An experiment with 22 participants proved that this system was more efficient at reducing the number of scripting errors in comparison to the traditional manner of a human expert. The main contribution of this paper was to identify and reveal the efficacy of computerized supervision in comparison to a human supervisor. The proposed system decreased the writing-error-rates of learners from 32.7% to 3.4%, whereas the traditional practice reduced the error rates from 31.0% to 6.8%. This result shows that computerized supervision is more efficient than human supervision for learning calligraphy.<\/jats:p>","DOI":"10.3390\/sym11091071","type":"journal-article","created":{"date-parts":[[2019,8,23]],"date-time":"2019-08-23T10:15:07Z","timestamp":1566555307000},"page":"1071","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Learning System for Japanese Kanji Calligraphy with Computerized Supervision"],"prefix":"10.3390","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7476-2468","authenticated-orcid":false,"given":"Jungpil","family":"Shin","sequence":"first","affiliation":[{"name":"School of Computer Science and Engineering, University of Aizu, Aizu-wakamatsu, Fukushima 965-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2300-1420","authenticated-orcid":false,"given":"Md Abdur","family":"Rahim","sequence":"additional","affiliation":[{"name":"School of Computer Science and Engineering, University of Aizu, Aizu-wakamatsu, Fukushima 965-8580, Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7437-4211","authenticated-orcid":false,"given":"Won-Du","family":"Chang","sequence":"additional","affiliation":[{"name":"School of Electronic and Biomedical Engineering, Tongmyong University, Busan 48520, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,8,22]]},"reference":[{"key":"ref_1","unstructured":"Nakata, Y. (1973). The Art of Japanese Calligraphy, Weatherhill."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"255","DOI":"10.1016\/S0015-7368(85)72398-5","article-title":"A comparative approach to the examination of Chinese handwriting-The Chinese character","volume":"25","author":"Leung","year":"1985","journal-title":"J. Forensic Sci. Soc."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1007\/s00138-007-0076-0","article-title":"An interactive grading and learning system for chinese calligraphy","volume":"19","author":"Han","year":"2008","journal-title":"Mach. Vis. Appl."},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Lyu, P., Bai, X., Yao, C., Zhu, Z., Huang, T., and Liu, W. (2017, January 9\u201315). Auto-encoder guided GAN for Chinese calligraphy synthesis. Proceedings of the 14th International Conference on Document Analysis and Recognition, Kyoto, Japan.","DOI":"10.1109\/ICDAR.2017.181"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"32","DOI":"10.1109\/MIS.2005.41","article-title":"Automatic generation of artistic chinese calligraphy","volume":"20","author":"Xu","year":"2005","journal-title":"IEEE Intell. Syst."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"412","DOI":"10.1007\/s003710050114","article-title":"Automatic synthesis of image details based on multiresolution coherence","volume":"13","author":"Wong","year":"1998","journal-title":"Vis. Comput."},{"key":"ref_7","first-page":"608","article-title":"3D Physics-based Brush Model for Interactive Painting","volume":"41","author":"Saito","year":"2000","journal-title":"J. Inf. Process. Soc. Jpn."},{"key":"ref_8","first-page":"79","article-title":"A paintbrush model for interactive painting tools","volume":"D12","author":"Saito","year":"1999","journal-title":"J. Inst. Electron. Inf. Commun. Eng."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1016\/S0097-8493(99)00141-7","article-title":"Virtual brush: A model-based synthesis of Chinese calligraphy","volume":"24","author":"Wong","year":"2000","journal-title":"Comput. Graph."},{"key":"ref_10","unstructured":"Yamasaki, T., and Hattori, T. (1996, January 14\u201317). Computer calligraphy-brush written Kanji formation based on the brush-touch movement. Proceedings of the IEEE International Conference on Systems, Man and Cybernetics, Information Intelligence and Systems, Beijing, China."},{"key":"ref_11","unstructured":"Wada, A., and Shin, J. (2009, January 17\u201318). Three-dimensional virtual calligraphy simulation with a pen tablet. Proceedings of the 1st IEEE International Workshop on Aware Computing, Aizu-Wakamatsu, Japan."},{"key":"ref_12","unstructured":"Shin, J., and Marumoto, M. (2012, January 21\u201324). Ink diffusion simulation for 3D virtual calligraphy. Proceedings of the 4th IEEE International Conference on Awareness Science and Technology, Seoul, South Korea."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"697","DOI":"10.20965\/jaciii.2017.p0697","article-title":"Calligraphy-Stroke Learning Support System Using Projector and Motion Sensor","volume":"21","author":"Matsumaru","year":"2017","journal-title":"J. Adv. Comput. Intell. Intell. Inform."},{"key":"ref_14","unstructured":"Kuwahara, K. (2019, June 14). The Japanese Character. Life and Calligraphy. Available online: http:\/\/www.shodo.it\/kuwahara-japanese-character\/."},{"key":"ref_15","unstructured":"Takezaki, K., and Godin, B. (2008). Introduction to Japanese Kanji Calligraphy, Tuttle Publishing."},{"key":"ref_16","unstructured":"Hadamitzky, W., and Spahn, M. (2013). Japanese Kanji and Kana: (JLPT All Levels) A Complete Guide to the Japanese Writing System (2,136 Kanji and 92 Kana), Tuttle Publishing."},{"key":"ref_17","unstructured":"Narita, M., and Matsumaru, T. (September, January 31). Calligraphy-stroke learning support system using projection. Proceedings of the 24th IEEE International Workshop on Robot and Human Interactive Communication, Kobe, Japan."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1206","DOI":"10.1541\/ieejfms.123.1206","article-title":"A calligraphy mastering support system using virtual reality technology and its learning effects","volume":"123","author":"Muranaka","year":"2003","journal-title":"IEEJ Trans. Fundam. Mater."},{"key":"ref_19","unstructured":"Shin, J., Okuyama, T., and Yun, K. (July, January 28). Sensory calligraphy learning system using Yongzi-Bafa. Proceedings of the 8th International Forum on Strategic Technology, Ulaanbaatar, Mongolia."},{"key":"ref_20","unstructured":"Kyuyo, I. (1997). Learn the Calligraphy: Techniques and Practice, Chikuma Shobou. (In Japanese)."},{"key":"ref_21","unstructured":"Shimomura, T. (October, January 30). Science of the stroke sequence of Kanji. Proceedings of the 8th Conference on Computational Linguistics, Association for Computational Linguistics, Tokyo, Japan."},{"key":"ref_22","first-page":"199","article-title":"The effects of stroke order and radicals on the knowledge of Japanese kanji orthography, phonology and semantics","volume":"43","author":"Tamaoka","year":"2000","journal-title":"Psychologia"},{"key":"ref_23","unstructured":"Nakamura, Y., and Kidode, M. (September, January 31). Individuality analysis of online kanji handwriting. Proceedings of the 8th International Conference on Document Analysis and Recognition, Seoul, South Korea."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"651","DOI":"10.1016\/j.patrec.2009.09.011","article-title":"Data clustering: 50 years beyond K-means","volume":"31","author":"Jain","year":"2010","journal-title":"Pattern Recognit. Lett."},{"key":"ref_25","first-page":"221","article-title":"Handwritten Chinese character font generation based on stroke correspondence","volume":"18","author":"Shin","year":"2005","journal-title":"Int. J. Comput. Process. Lang."},{"key":"ref_26","first-page":"300","article-title":"A Study of the Compression Method for a Reference Character Dictionary used for On-line Character Recognition","volume":"2773","author":"Shin","year":"2003","journal-title":"Lect. Notes Artif. Intell."},{"key":"ref_27","unstructured":"Kinsen, Y. (2016). You Can Write Beautiful Character Correctly KAI GYO SOO Stroke Order Dictionary, Natsumesya. (In Japanese)."}],"container-title":["Symmetry"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2073-8994\/11\/9\/1071\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T13:13:14Z","timestamp":1760188394000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2073-8994\/11\/9\/1071"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,8,22]]},"references-count":27,"journal-issue":{"issue":"9","published-online":{"date-parts":[[2019,9]]}},"alternative-id":["sym11091071"],"URL":"https:\/\/doi.org\/10.3390\/sym11091071","relation":{},"ISSN":["2073-8994"],"issn-type":[{"value":"2073-8994","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,8,22]]}}}