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WATERMARK INFORMATION EMBEDDING APPARATUS, WATERMARK INFORMATION PROCESSING SYSTEM, WATERMARK INFORMATION EMBEDDING METHOD, AND PROGRAM

Foreign code F120006192
File No. S2009-0760
Posted date Feb 7, 2012
Country WIPO
International application number 2010JP059393
International publication number WO 2010/140639
Date of international filing Jun 2, 2010
Date of international publication Dec 9, 2010
Priority data
  • P2009-135301 (Jun 4, 2009) JP
Title WATERMARK INFORMATION EMBEDDING APPARATUS, WATERMARK INFORMATION PROCESSING SYSTEM, WATERMARK INFORMATION EMBEDDING METHOD, AND PROGRAM
Abstract Provided are a watermark information embedding apparatus, a watermark information processing system, a watermark information embedding method and a program wherein two-dimensional codes can be provided which enable the detection of copies. The watermark information embedding apparatus comprises a first wavelet transforming unit (12), a watermark information embedding unit (14) and an inverse wavelet transforming unit (150). The first wavelet transforming unit (12) subjects an original image of two-dimensional code to a discrete wavelet transform, thereby decomposing the original image into frequency components: LL, LH, HL and HH components. The watermark information embedding unit (14) embeds, as high frequency components in slanting directions, watermark information into the HH component. The inverse wavelet transforming unit (150) subjects the LL, LH and HL frequency components and the HH component, into which the watermark information has been embedded, to an inverse discrete wavelet transform, thereby reconfiguring the two-dimensional code.
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • KAGOSHIMA UNIVERSITY
  • A.T COMMUNICATIONS CO., LTD.
  • Inventor
  • ONO Satoshi
  • NAKAYAMA Shigeru
  • TSUTSUMI Makoto
IPC(International Patent Classification)
Specified countries AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW,BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CL(UTILITY MODEL),CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM,DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN(UTILITY MODEL),HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME,MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PE(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TH(PETTY PATENT),TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(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,SE,SI,SK,SM,TR),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LR(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)
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