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SYMBOL RECOGNITION DEVICE AND TRAFFIC SIGN RECOGNITION DEVICE

外国特許コード F150008509
整理番号 S2015-0850-N0
掲載日 2015年11月5日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2014JP004918
国際公開番号 WO 2015045394
国際出願日 平成26年9月25日(2014.9.25)
国際公開日 平成27年4月2日(2015.4.2)
優先権データ
  • 特願2013-203715 (2013.9.30) JP
  • 特願2013-216403 (2013.10.17) JP
発明の名称 (英語) SYMBOL RECOGNITION DEVICE AND TRAFFIC SIGN RECOGNITION DEVICE
発明の概要(英語) Provided is a symbol recognition device (10), comprising: an image memory (12) which stores a binarized image of a recognition subject; a plurality of histogram computation units (161) each of which receives input of an image of each partial region of a region to be recognized in the binarized image, and computes a frequency distribution of pixels of a prescribed color of each line or each column in the partial region; a plurality of run length determination units (162) each of which receives input of the image of each partial region of the region to be recognized, and determines whether lines or columns greater than or equal to a prescribed length and formed from the pixels of the prescribed colors are present in the partial region; a control unit (14) which scans the binarized image which is stored in the image memory, and inputs read out pixel information of the partial regions to the plurality of histogram computation units and the plurality of run length determination units; and a determination unit (18) which determines a symbol which is included in the binarized image on the basis of the results of the computations of the plurality of histogram computation units and the results of the determinations of the plurality of run length determination units.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • HIROSHIMA UNIVERSITY
  • 発明者(英語)
  • KOIDE TETSUSHI
  • TUAN HOANG ANH
  • YAMAMOTO MASAHARU
  • MISHIMA TSUBASA
国際特許分類(IPC)
指定国 National States: AE AG AL AM AO AT AU AZ BA BB BG BH BN BR BW BY BZ CA CH CL CN CO CR CU CZ DE DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS KE KG KN KP KR KZ LA LC LK LR LS LU LY MA MD ME MG MK MN MW MX MY MZ NA NG NI NO NZ OM PA PE PG PH PL PT QA RO RS RU RW SA SC SD SE SG SK SL SM ST SV SY TH TJ TM TN TR TT TZ UA UG US UZ VC VN ZA ZM ZW
ARIPO: BW GH GM KE LR LS MW MZ NA RW SD SL SZ TZ UG ZM ZW
EAPO: AM AZ BY KG KZ RU TJ TM
EPO: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
OAPI: BF BJ CF CG CI CM GA GN GQ GW KM ML MR NE SN TD TG

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