Title:
IMAGE MEASURING METHOD AND APPARATUS THEREOF
Document Type and Number:
Japanese Patent JP2004117038
Kind Code:
A
Abstract:
To reduce influence to a measurement value by the diffraction of light even in a work under transfer.
When the work 10 under transfer is subjected to image input by transmission lighting and a target 12 in the work is measured from the image, a measurement value is corrected by the difference between actual dimensions that are obtained in advance and the measurement value and a calibration curve 36 in the brightness of the background, thus reducing influence to the measurement value by the diffraction of light.
Inventors:
TOTSUKA TAKAYUKI
HAYASHI KENTA
HAYASHI KENTA
Application Number:
JP2002277457A
Publication Date:
April 15, 2004
Filing Date:
September 24, 2002
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD
International Classes:
G01B11/02; (IPC1-7): G01B11/02
Attorney, Agent or Firm:
Satoshi Takaya
Keisuke Matsuyama
Tsuyoshi Makino
Keisuke Matsuyama
Tsuyoshi Makino
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