Method and arrangement for FPN correction in an image signal...

Details Method and arrangement for FPN correction in an image signal... Method and arrangement for FPN correction in an image signal...

2007-05-29

2007-05-29

Wu, Jingge (Department: 2624)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S260000, C382S275000, C358S003260, C358S003270

Reexamination Certificate

active

10959027

ABSTRACT:
In order to correct for fixed pattern noise in the signals of an image sensor, image signal values are read out from the pixels of the sensor. Individual correction values are added as analogue quantities to the image signal values via a signal path having a defined transfer function. Parameters which are characteristic of the defined transfer function are provided in a memory and the individual correction values are calculated in a correction value calculating unit using the parameters provided.

REFERENCES:
patent: 4680723 (1987-07-01), Whinray et al.
patent: 4771267 (1988-09-01), Russell, Jr. et al.
patent: 5631466 (1997-05-01), Botti et al.
patent: 6075903 (2000-06-01), Breiter et al.
patent: 6108611 (2000-08-01), McEwen
patent: 6285410 (2001-09-01), Marni
patent: 6587142 (2003-07-01), Kozlowski et al.
patent: 6640145 (2003-10-01), Hoffberg et al.
patent: 6741725 (2004-05-01), Astle
patent: 6859565 (2005-02-01), Baron
patent: 197 15 983 (1998-09-01), None
patent: 0 295 873 (1988-12-01), None
patent: 5-137073 (1993-06-01), None
patent: WO 97/40621 (1997-10-01), None
patent: WO 99/03262 (1999-01-01), None
Werner Ogiers, Guy Meynants, Bart Dierickx, Robert Mertens; “An analogue-domain FPN compensation circuit for random access CMOS imagers”; Jun. 1997; pp. 381-387.
Arnulf Wallrabe; “Nachtsichttechnik”; Sep. 2004; pp. 343-345.
“Imager and Camera Data and Features”; Sep. 2000; pp. 1-25.

Affiliated with

Also associated with

Rating

Method and arrangement for FPN correction in an image signal... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and arrangement for FPN correction in an image signal..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and arrangement for FPN correction in an image signal... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3808453