Method and apparatus for short range motion adaptive noise...

Details Method and apparatus for short range motion adaptive noise... Method and apparatus for short range motion adaptive noise...

2011-06-14

2011-06-14

Cunningham, Gregory F (Department: 2624)

Image analysis

Image enhancement or restoration

Image filter

C345S601000, C345S602000

Reexamination Certificate

active

07961972

ABSTRACT:
In one embodiment, the present invention includes a method for generating and storing in a lookup table a first array of next field values for use in generation of weighted pixel values and generating and storing a second array in the lookup table of previous field values for use in generation of the weighted pixel values, determining if motion is present in a pixel of a field under analysis, if the motion is present, performing spatial de-noising using a weighted pixel average of a window of a predetermined size, otherwise performing temporal de-noising using a weighted pixel value between the pixel and a previous pixel using information in the lookup table. Other embodiments are described and claimed.

REFERENCES:
patent: 4941190 (1990-07-01), Joyce
patent: 6633683 (2003-10-01), Dinh et al.
patent: 2006/0215058 (2006-09-01), Lu et al.
C. Tomasi and R. Manduchi, “Bilateral Filtering for Gray and Color Images,” 1998, pp. 1-8.
U.S. Appl. No. 11/648,259, filed Dec. 29, 2006, entitled “Adaptive Video De-Interlacing,” by Tiehan Lu.

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