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Image defect correction apparatus and method
   
Document Number
US Patent 7483063
Issued Date
January 27, 2009
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Abstract
An image defect correction apparatus that processes luminance signals output from two-dimensionally arranged light-sensitive elements via a plurality of vertical charge coupled devices and a horizontal charge coupled device in a predetermined order, outputs image information, and includes: a recording unit that records therein an X address for identifying a correction-target vertical line of pixels corresponding to a vertical charge coupled device in which a point defect exists; a correction value calculating unit that calculates a correction value from values of (i) a luminance signal corresponding to at least one pixel at a predetermined position on the correction-target vertical line identified by the X address and (ii) a luminance signal corresponding to at least one pixel at a predetermined position on another vertical line; and a correcting unit that corrects values of luminance signals corresponding to the correction-target vertical line, based on the calculated correction value.
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Number of Claims:
30
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Owner
Published
January 27, 2009
Application Number
10/845,526
Filed
May 14, 2004
US Classification
348/246   348/312
Int'l Classification
H04N   9/64   (20060101)   H04N   3/14   (20060101)  
Examiner
Attorney/Law Firm
Priority Data
May 15, 2003 [JP] 2003-137758 Apr 15, 2004 [JP] 2004-120413
USPTO Field of Search
348/246   348/247   348/250   348/616  
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