Method and apparatus for improving quality of composite...

Details Method and apparatus for improving quality of composite... Method and apparatus for improving quality of composite...

2011-07-26

2011-07-26

Perungavoor, Sath V (Department: 2624)

Image analysis

Image enhancement or restoration

Artifact removal or suppression

C382S232000, C382S240000, C382S254000, C382S260000, C382S261000, C348S645000, C348S627000, C348S708000

Reexamination Certificate

active

07986854

ABSTRACT:
A method of improving picture quality in a composite video burst signal includes dividing the composite video burst signal into a plurality of frequency bands using a low pass filter and a high pass filter, performing wavelet packet filtering of frequency bands including a chrominance signal having energy higher than a specified threshold among the plurality of frequency bands, and performing Wiener filtering of frequency bands including a chrominance signal having energy lower than a specified threshold.

REFERENCES:
patent: 6028646 (2000-02-01), Jeong et al.
patent: 2006/0274210 (2006-12-01), Kim
patent: 2009/0175552 (2009-07-01), Mallat
Baraniuk et al, “Improvement Wavelet denoising via empirical Wiener filtering”, Jul. 1997, Proceedings of SPIE, vol. 3169, pp. 389-399.
Donoho, “De-noising by Soft-Thresholding”, May 1995, IEEE Trans. Information Theory, vol. 41, No. 3, pp. 613-627.
Krim et al., “On denoising and best signal representation”, Nov. 1999, IEEE Trans. Information Theory, vol. 45, No. 7, pp. 2225-2238.
Jang et al., “Locally adaptive Wiener filtering in wavelet domain for image restoration”, Dec. 1997, in Proc. IEEE TENCON '87 Conf., pp. 25-28.
Kaur et al. “Image Denoising using Wavelet Thresholding”, 2002, Indian Conference on Computer Vision, Graphics and Image Processing.

Affiliated with

Also associated with

Rating

Method and apparatus for improving quality of composite... 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 apparatus for improving quality of composite..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for improving quality of composite... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2710087