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METHOD FOR DETECTING POINT OF GAZE AND DEVICE FOR DETECTING POINT OF GAZE コモンズ

外国特許コード F120006789
整理番号 10008EB052
掲載日 2012年6月27日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2011JP078302
国際公開番号 WO 2012/077713
国際出願日 平成23年12月7日(2011.12.7)
国際公開日 平成24年6月14日(2012.6.14)
優先権データ
  • 特願2010-274074 (2010.12.8) JP
発明の名称 (英語) METHOD FOR DETECTING POINT OF GAZE AND DEVICE FOR DETECTING POINT OF GAZE コモンズ
発明の概要(英語) Disclosed is a device (1) for detecting point of gaze, said device (1) comprising four cameras (2a, 2b, 2c, 2d), light sources (3a, 3b, 3c, 3d), control circuits (4, 5, 6) and an image processing device (7). The image processing device (7) calculates vectors (r) from the corneal reflection point of a subject (A) to the centre of the pupil of the subject (A), on a plane that is perpendicular to a reference line connecting a camera and the centre of the pupil. Based on the vectors (r), the angle (.theta.) of the line of gaze of the subject with respect to the reference lines of the cameras is calculated by using a function (f) containing M parameters. The M parameters contained in the function (f) are determined by using a plurality of relationship expressions derived from the angle (.theta.). The point of gaze (Q) of the subject (A) is detected by finding the point of intersection of the line of gaze on a display screen, based on the direction of the line of gaze calculated using the determined parameters. The number of cameras is set such that M * 1/2 or greater.
  • 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
  • NATIONAL UNIVERSITY CORPORATION SHIZUOKA UNIVERSITY
  • 発明者(英語)
  • EBISAWA Yoshinobu
国際特許分類(IPC)
指定国 AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA(CONSENSUAL PATENT),BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW(UTILITY MODEL CERTIFICATE),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),QA,RO(UTILITY MODEL),RS(PETTY PATENT),RU(UTILITY MODEL),RW(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,RS,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),RW(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)
参考情報 (研究プロジェクト等) S2011-0223
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