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POLARIZATION SENSITIVE OPTICAL IMAGE MEASUREMENT SYSTEM, AND PROGRAM LOADED INTO SAID SYSTEM

外国特許コード F160008658
整理番号 (S2014-1015-N0)
掲載日 2016年2月5日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2015JP066002
国際公開番号 WO 2015186726
国際出願日 平成27年6月3日(2015.6.3)
国際公開日 平成27年12月10日(2015.12.10)
優先権データ
  • 特願2014-118159 (2014.6.6) JP
発明の名称 (英語) POLARIZATION SENSITIVE OPTICAL IMAGE MEASUREMENT SYSTEM, AND PROGRAM LOADED INTO SAID SYSTEM
発明の概要(英語) In polarization sensitive optical image measurement, a surrounding area of low SN ratio (signal-to-noise ratio) and low signal strength includes considerable bias, and the birefringence shifts. The purpose of the present invention is to eliminate this shift of birefringence, making highly accurate quantitative measurement possible. An OCT signal containing noise, acquired by polarization sensitive OCT, is processed by an algorithm for calculating birefringence, and the measured birefringence is calculated. While statistically varying the noise, a measured birefringence distribution is simulated, and the noise characteristics of the measured birefringence values are determined. Computations by the Monte Carlo method are performed repeatedly while postulating different values respectively for the noise level and the actual birefringence values, thereby producing a three-dimensional histogram of combinations of actual birefringence values, SN ratios, and measured birefringence values. By postulating prescribed measured birefringence values and SN ratios from this three-dimensional histogram, a probability density distribution of actual birefringence values is obtained, and actual birefringence values are estimated from the probability density distribution of actual birefringence values.
  • 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
  • UNIVERSITY OF TSUKUBA
  • 発明者(英語)
  • YASUNO YOSHIAKI
  • KASARAGOD DEEPA CAMAS
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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