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Patent Searching and Data


Title:
IMAGE PICKUP DEVICE AND ITS CONTROL METHOD
Document Type and Number:
Japanese Patent JPH07255014
Kind Code:
A
Abstract:

PURPOSE: To obtain an image pickup device which can be simplified and reduced in size and obtain more accurate correction data by integrating image data of plural frames, pixel by pixel, and using the correction data corresponding to the mean image data.

CONSTITUTION: When image data DG corresponding to one pixel are inputted from an A/D converter 5, an arithmetic circuit 6 integrates the data as integrated image data IDG in a 1st memory 11. Once image data DG of plural frames are integrated, their mean image data are stored as correction image data CDG in a 2nd memory 10. The image data DG are therefore corrected by using the correction image data CDG which are updated by every plural frames, and in a normal photographic state, corrections corresponding to the light intensity of a subject are made. Consequently, the latest data are used as the correction data at all times and more accurate corrections can be made.


Inventors:
AWAMOTO KENJI
SAKACHI YOICHIRO
DOI SHOJI
WAKAYAMA HIROYUKI
Application Number:
JP4441894A
Publication Date:
October 03, 1995
Filing Date:
March 15, 1994
Export Citation:
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Assignee:
FUJITSU LTD
International Classes:
H04N5/225; H04N5/335; H04N5/351; H04N5/353; H04N5/365; H04N5/369; H04N5/372; H04N5/378; (IPC1-7): H04N5/335; H04N5/225
Attorney, Agent or Firm:
Yasuo Ishikawa