Signal processing method for image capturing apparatus, and image capturing apparatus including calculating image transfer efficiency
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United States of America Patent
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Jan 5, 2010
Grant Date -
Feb 22, 2007
app pub date -
Jul 19, 2006
filing date -
Aug 16, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides an image capturing apparatus which enables a desired image quality to be maintained regardless of transfer efficiency of a CCD image capturing element. R, G and B signals (CCD-RAW data) are acquired from the CCD image capturing element. In addition, various information, namely transfer efficiency of the CCD image capturing element, camera sensitivity upon photography, drive frequency of the CCD image capturing element, WB gains of the acquired R, G and B signals, pixel count, internal temperature of camera or temperature of the CCD image capturing element, and CCD color filter array of the CCD image capturing element are acquired. Signal processing on the acquired R, G and B signals is changed according to the acquired information in order to suppress image quality deterioration due to transfer efficiency degradation.
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