Removal of stationary noise pattern from digital images

Details Removal of stationary noise pattern from digital images Removal of stationary noise pattern from digital images

2008-03-06

2010-10-26

Bella, Matthew C (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C382S205000

Reexamination Certificate

active

07822287

ABSTRACT:
A method for removing a stationary noise pattern from digital images uses an adaptive noise estimation algorithm to calculate a prediction of the fixed pattern noise and a confidence estimate for the prediction. In one embodiment, a predicted noise value is obtained from the captured image and a predicted image derived from spatial and temporal pixel value prediction techniques. The predicted noise value is used to update a fixed pattern noise estimate only when the confidence estimate for the predicted image is high. In another embodiment, the confidence estimate is used as a weight factor for blending the noise prediction into the noise estimate. In yet another embodiment, the adaptive noise estimation algorithm is applied to a prediction area in the image for calculating scaling parameters which scaling parameters are used to calculate a noise estimate for the entire image based on a reference noise image.

REFERENCES:
patent: 5170440 (1992-12-01), Cox
patent: 2003/0179944 (2003-09-01), Gindele et al.

Affiliated with

Also associated with

Rating

Removal of stationary noise pattern from digital images does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Removal of stationary noise pattern from digital images, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removal of stationary noise pattern from digital images will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4222392