US Patent No: 5,327,246

Number of patents in Portfolio can not be more than 2000

Pixel defect removing circuit for solid-state image pickup device

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Abstract

From an input video signal, a pixel value of a pixel of notice noted at a certain time t and a proximal pixel group adjacent two-dimensionally around the pixel of notice are sampled, and maximum and minimum values from the proximal pixel value group are selected as candidate pixel values. By performing a specific operation between the pixel value of the pixel of notice and the candidate pixel value group, a judgment is made as to whether a pulse noise is contained in the pixel of notice. On the basis of the judgement, a pixel value is selected from among the pixel value of the pixel of notice and the candidate pixel values and delivered.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.OSAKA27275

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suzuki, Norio Mito, JP 253 1602

Cited Art

Patent Info (Count) # Cites Year
 
EASTMAN KODAK COMPANY (3)
4,473,845 Method and apparatus for processing signals from a solid-state image sensor 15 1983
4,833,723 Image processing method for the removal of spot defects and apparatus therefor 18 1988
5,047,861 Method and apparatus for pixel non-uniformity correction 131 1990
 
RCA LICENSING CORPORATION, TWO INDEPENDENCE WAY, PRINCETON, NJ 08540, A CORP. OF DE (2)
4,454,541 Charge coupled device based blemish detection system and method 19 1982
4,639,775 Method for detecting blemishes near the perimeter of a CCD image 7 1985
 
TEXAS INSTRUMENTS INCORPORATED (2)
4,734,774 CCD imager video output defect compensation 11 1984
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CANON KABUSHIKI KAISHA (1)
5,086,484 Image processing apparatus with fixed or variable threshold 56 1989
 
ROCKET SOFTWARE, INC. (1)
5,189,710 Method and an apparatus for generating a video binary signal for a video image having a matrix of pixels 14 1990
 
UNISYS CORPORATION (1)
5,029,226 Method and apparatus for effecting spot/void filtering of image data 25 1989

Patent Citation Ranking

Forward Cites

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SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC (4)
7,092,018 Image signal processor and deficient pixel detection method 20 2000
7,327,392 Signal processing apparatus 2 2004
7,755,680 Image signal processor and deficient pixel detection method 2 2006
7,746,393 Image signal processor and deficient pixel detection method 0 2006
 
CANON KABUSHIKI KAISHA (3)
5,534,919 Image pickup apparatus for estimating a complementary color value of a target pixel 5 1994
8,023,764 Image processing apparatus, image processing method, and a program, for removing low-frequency noise from image data 5 2003
8,306,357 Image processing apparatus, image processing method, and computer program 0 2011
 
PANASONIC CORPORATION (3)
7,528,871 Imaging device that prevents loss of shadow detail 4 2004
7,898,587 Imaging device that prevents loss of shadow detail 1 2008
8,319,875 Imaging device that prevents loss of shadow detail 0 2011
 
TEXAS INSTRUMENTS INCORPORATED (3)
6,529,238 Method and apparatus for compensation of point noise in CMOS imagers 10 1998
6,822,679 Offset correction to the output of a charge coupled device 6 2000
7,286,179 Defective pixel filtering for digital imagers 2 2004
 
CSR TECHNOLOGY INC. (2)
7,388,609 Dynamic identification and correction of defective pixels 5 2003
8,098,304 Dynamic identification and correction of defective pixels 0 2008
 
FUJIFILM CORPORATION (2)
7,301,571 Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information 2 2004
7,872,680 Method and imaging apparatus for correcting defective pixel of solid-state image sensor, and method for creating pixel information 1 2007
 
LOGITECH EUROPE S.A. (2)
7,009,644 Dynamic anomalous pixel detection and correction 28 1999
6,995,794 Video camera with major functions implemented in host software 14 2001
 
MICRON TECHNOLOGY, INC. (2)
8,063,965 Apparatus and method for eliminating artifacts in active pixel sensor (APS) imagers 0 2008
8,279,314 Apparatus and method for eliminating artifacts in active pixel sensor (APS) imagers 0 2011
 
MICROSOFT CORPORATION (2)
6,266,054 Automated removal of narrow, elongated distortions from a digital image 82 1997
6,160,923 User directed dust and compact anomaly remover from digital images 27 1997
 
OLYMPUS OPTICAL CO., LTD. (2)
6,642,960 Image pickup apparatus 28 1999
6,809,763 Image pickup apparatus and method of correcting deteriorated pixel signal thereof 11 2000
 
APTINA IMAGING CORPORATION (1)
7,015,961 Digital image system and method for combining demosaicing and bad pixel correction 18 2002
 
CALIFORNIA INSTITUTE OF TECHNOLOGY (1)
6,515,702 Active pixel image sensor with a winner-take-all mode of operation 19 1998
 
CHRONTEL, INC. (1)
6,806,902 System and method for correcting bad pixel data in a digital camera 31 1999
 
CROSSTEK CAPITAL, LLC (1)
5,995,675 Defect compensator for solid-state image pickup device 19 1996
 
DIALOG IMAGING SYSTEM GMBH (1)
7,129,975 Addressable imager with real time defect detection and substitution 4 2002
 
EASTMAN KODAK COMPANY (1)
5,631,979 Pixel value estimation technique using non-linear prediction 8 1994
 
FUJI PHOTO FILM CO., LTD. (1)
6,996,289 Image processing apparatus and method which defines abnormal pixels by reading density signal levels 2 2000
 
IMPERIUM (IP) HOLDINGS (1)
7,199,824 Intelligent blemish control algorithm and apparatus 5 2005
 
INTELLECTUAL VENTURES FUND 83 LLC (1)
6,104,839 Method and apparatus for correcting pixel values in a digital image 64 1996
 
INTELLECTUAL VENTURES II LLC (1)
6,707,493 Method and apparatus for error detection and correction in image sensor 13 1999
 
JVC KENWOOD CORPORATION (1)
6,765,614 Pixel defect compensation apparatus and method of compensating pixel defect 10 1999
 
KONICA MINOLTA HOLDINGS, INC. (1)
6,683,643 Electronic camera capable of detecting defective pixel 64 1998
 
MARCONI MEDICAL SYSTEMS, INC. (1)
6,747,697 Method and apparatus for digital image defect correction and noise filtering 14 2000
 
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. (1)
7,280,142 Defective pixel detection and correction apparatus using target pixel and adjacent pixel data 4 2002
 
MINOLTA CO., LTD. (1)
7,230,644 Image-sensing apparatus with brightness range adaptation functionality 3 2005
 
MTEKVISION CO., LTD. (1)
7,676,084 Apparatus for processing dead pixel 0 2006
 
SAMSUNG ELECTRONICS CO., LTD. (1)
7,671,909 Method and apparatus for processing Bayer-pattern digital color video signal 1 2006
 
SONY CORPORATION (1)
7,564,491 Pixel defect detecting/correcting device and pixel defect detecting/correcting method 3 2003
 
TDK CORPORATION (1)
7,432,985 Image processing method 10 2004