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DENTAL IMAGE PROCESSING DEVICE, DENTAL IMAGING SYSTEM, DENTAL IMAGE PROCESSING METHOD, AND PROGRAM 新技術説明会

外国特許コード F190009844
整理番号 (S2018-0070-N0)
掲載日 2019年7月25日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2018JP039182
国際公開番号 WO 2019082841
国際出願日 平成30年10月22日(2018.10.22)
国際公開日 令和元年5月2日(2019.5.2)
優先権データ
  • 特願2017-204342 (2017.10.23) JP
発明の名称 (英語) DENTAL IMAGE PROCESSING DEVICE, DENTAL IMAGING SYSTEM, DENTAL IMAGE PROCESSING METHOD, AND PROGRAM 新技術説明会
発明の概要(英語) Provided is an image processing device (300), wherein a position determination unit (313) determines the position of a mental foramen on the left side and the right side of a lower jaw part and the position of an incisive canal of an upper jaw part in a three-dimensional image showing the upper jaw part and the lower jaw part of a subject. A coordinate system setting unit (314) sets a three-dimensional coordinate system in which a position established by the positions of the left-side and right-side mental foramen and the position of the incisive canal as determined by the position determination unit (313) is the point of origin. The three-dimensional coordinate system includes: a first coordinate axis that passes through the point of origin and the position of the incisive canal; a second coordinate axis that is perpendicular to the first coordinate axis and a straight line connecting the position of the left-side mental foramen and the position of the right-side mental foramen; and a third coordinate axis that is perpendicular to the first coordinate axis and the second coordinate axis.
従来技術、競合技術の概要(英語) BACKGROUND ART
As an index representing the characteristics of the tooth to the tooth axis determined by a technique has been known. For example, Non-Patent Document 1 is, a non-contact type measurement in the ex vivo (in vitro) by the laser beam lateral incisors and measures the surface shape of the maxilla, the principal component analysis method using the disclosed method of obtaining the tooth axis. In addition, the non-patent document 2, a dental cone beam CT (CBCT: Cone-Beam Computed Tomography) vivo human teeth (in vivo) of the acquired CT image 20, the principal component analysis method using the disclosed method of obtaining the tooth axis. Further, non-patent document 3, is 4, and the root of the tooth from the jawbone and the CT image and manually separated to construct a three-dimensional shape of the teeth, the teeth of the three-dimensional principal component analysis method discloses the method of determining the axis.
  • 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
  • NIIGATA UNIVERSITY
  • 発明者(英語)
  • SAKAMOTO Makoto
  • KOBAYASHI Koichi
  • MORISE Yusuke
  • SAKAGAMI Yuta
  • KAMEDA Takashi
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 DJ DK DM DO DZ EC EE EG ES FI GB GD GE GH GM GT HN HR HU ID IL IN IR IS JO JP KE KG KH KN KP KR KW 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 ST TD TG
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