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IMAGE PROCESSING METHOD AND APPARATUS

外国特許コード F130007143
整理番号 S2011-0925-N0
掲載日 2013年2月6日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2012JP068395
国際公開番号 WO 2013/012054
国際出願日 平成24年7月19日(2012.7.19)
国際公開日 平成25年1月24日(2013.1.24)
優先権データ
  • 特願2011-158175 (2011.7.19) JP
発明の名称 (英語) IMAGE PROCESSING METHOD AND APPARATUS
発明の概要(英語)

Provided are an image processing method and an image processing apparatus for achieving a dense shape measurement of an object moving at a high speed. An image processing method uses an image capturing apparatus to capture an image of a projection pattern, which is projected by a projecting apparatus onto an object to be observed and which comprises a periodic pattern, and performs a shape reconstruction from an input image including the projection pattern. The image processing method comprises the steps of: detecting, from an input image captured by the image capturing apparatus, a projection pattern projected by the projecting apparatus

detecting a relative phase of the detected projection pattern

and calculating the absolute phase of a reference position on the basis of a fact that a first condition is established for the pixels of the detected projection pattern, the first condition being that, assuming that the absolute phase of the detected projection pattern is represented by the sum of the relative phase from the reference position and the absolute phase of the reference position, depths, which are calculated from the absolute phases of a plurality of projection patterns, are coincident.

  • 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 INSTITUTE OF ADVANCED INDUSTRIAL SCIENCEAND TECHNOLOGY,
  • TECHNO DREAM 21 CO., LTD,
  • SAGAWA RYUSUKE,
  • FURUKAWA RYO,
  • KAWASAKI HIROSHI
  • 発明者(英語)
  • SAGAWA RYUSUKE,
  • FURUKAWA RYO,
  • KAWASAKI HIROSHI
国際特許分類(IPC)

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