{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2023,10,22]],"date-time":"2023-10-22T06:41:06Z","timestamp":1697956866903},"reference-count":10,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2007,3,21]],"date-time":"2007-03-21T00:00:00Z","timestamp":1174435200000},"content-version":"vor","delay-in-days":7384,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Systems &amp; Computers in Japan"],"published-print":{"date-parts":[[1987,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>With the widespread use of factory automation, there has been an increasing demand for the recognition of stamped characters. The stamped characters are sometimes of high\u2010quality, and sometimes of low\u2010quality, due to the variation of hollow depth and shape. This paper discusses the thresholding method for the recognition of such low\u2010quality stamped characters. The proposed method determines the optimum threshold characteristic for each stamped character, by which the thresholding for each character is performed. The recognition experiment was performed using 120 samples of stamped characters O, D and 8 of low quality. Ninety\u2010four samples were recognized correctly by the traditional fixed\u2010thresholding method, while all 120 samples were recognized correctly by the proposed optimum thresholding method. The recognition rate was examined for 2000 samples composed of sixteen alphanumerals. The correct recognition rate was 99.8 percent, indicating that the proposed method is effective. The stamped character recognition system has been developed for the cylindrical machine part, which can recognize 3 digits of sixteen alphanumerals in 0.95 s.<\/jats:p>","DOI":"10.1002\/scj.4690180606","type":"journal-article","created":{"date-parts":[[2007,7,7]],"date-time":"2007-07-07T13:52:26Z","timestamp":1183816346000},"page":"60-70","source":"Crossref","is-referenced-by-count":1,"title":["A new video\u2010thresholding method for recognition of low\u2010quality stamped alphanumerals"],"prefix":"10.1002","volume":"18","author":[{"given":"Tomoaki","family":"Nakano","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Osamu","family":"Ozeki","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shin","family":"Yamamoto","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2007,3,21]]},"reference":[{"key":"e_1_2_1_2_2","unstructured":"JISC 6250.Characters for optical character recognition (alphanumerals) Jap. Standard Assoc.(1976)."},{"key":"e_1_2_1_3_2","unstructured":"JISC 6253.Printing specifications for optical character recognition Jap. Standard Assoc.(1982)."},{"key":"e_1_2_1_4_2","first-page":"31","article-title":"Stamped character checker","author":"Nitta","year":"1982","journal-title":"Tech. Rep. TV Soc. Jap."},{"key":"e_1_2_1_5_2","unstructured":"Y.HongoandA.Komuro.Stamped Character Inspection Apparatus based on The Bit Matrix Method Proc. of the 6th Int. Conf. on Pattern Recognition pp.448\u2013450(1982)."},{"key":"e_1_2_1_6_2","article-title":"Stamped character OCR","volume":"1409","author":"Nakamura Y.","year":"1981","journal-title":"Nat. Conv. I. E. C. E., Japan"},{"key":"e_1_2_1_7_2","article-title":"Stamped OCR system","volume":"1395","author":"Nakamura Y.","year":"1983","journal-title":"Nat. Conv. I. E. C. E., Japan"},{"key":"e_1_2_1_8_2","unstructured":"Y.Nakamura M.Suda K.Sakai Y.TakedaandM.Udaka.Development of a High Performance Stamped Character Reader Proc. IECON '84 (Oct.1984)."},{"issue":"4","key":"e_1_2_1_9_2","first-page":"349","article-title":"Automatic determination of threshold based on discrimination and least\u2010mean\u2010square criterion","volume":"63","author":"Ohtsu N.","year":"1980","journal-title":"Trans. (D), I. E. C. E., Japan"},{"key":"e_1_2_1_10_2","first-page":"591","article-title":"Real time Recognition of Handprinted Text","volume":"29","author":"Groner G. F.","year":"1966","journal-title":"AFIPS, FJCC"},{"issue":"8","key":"e_1_2_1_11_2","first-page":"507","article-title":"Theoretical study of figure recognition by pattern matching, Trans. (D)","volume":"55","author":"Iijima T.","year":"1972","journal-title":"I. E. C. E., Japan"}],"container-title":["Systems and Computers in Japan"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fscj.4690180606","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/scj.4690180606","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,21]],"date-time":"2023-10-21T02:30:17Z","timestamp":1697855417000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/scj.4690180606"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1987,1]]},"references-count":10,"journal-issue":{"issue":"6","published-print":{"date-parts":[[1987,1]]}},"alternative-id":["10.1002\/scj.4690180606"],"URL":"https:\/\/doi.org\/10.1002\/scj.4690180606","archive":["Portico"],"relation":{},"ISSN":["0882-1666","1520-684X"],"issn-type":[{"value":"0882-1666","type":"print"},{"value":"1520-684X","type":"electronic"}],"subject":[],"published":{"date-parts":[[1987,1]]}}}