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Image checking method and apparatus 実績あり

外国特許コード F110004891
整理番号 Y0465TW
掲載日 2011年7月22日
出願国 台湾
出願番号 94116228
公報番号 200641343
公報番号 I274865
出願日 平成17年5月19日(2005.5.19)
公報発行日 平成18年12月1日(2006.12.1)
公報発行日 平成19年3月1日(2007.3.1)
優先権データ
  • 特願2004-130734 (2004.4.27) JP
発明の名称 (英語) Image checking method and apparatus 実績あり
発明の概要(英語)

An image checking process wherein only a defective or differential portion of a checked image is displayed together with its position and wherein no pre-processing is required for image positioning. A computer (3) captures a reference image or Fourier transformed image thereof from a storage part, a CCD camera (1) or a CCD camera (2) to acquire intensity information and phase information, and also captures an identified image or Fourier transformed image thereof from the storage part, CCD camera (1) or CCD camera (2) to acquire intensity information of the Fourier transformed image of the identified image. Then, the computer (3) determines the difference in intensity information between the reference image and the Fourier transformed image of the identified image and further determines an inverse Fourier transformed image of an expression obtained from the determined differential intensity information and the phase information of the reference image to output the inverse Fourier transformed image to an output part or display part. The inverse Fourier transformed image is used to extract, as a difference between the identified image and the reference image, an image defect of the identified image or the image difference between the identified image and the reference image.

  • 出願人(英語)
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
  • 発明者(英語)
  • SHIMIZU, ISAO
国際特許分類(IPC)
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