Filtering artifacts in images with 3D spatio-temporal fuzzy...

Image analysis – Image enhancement or restoration – Image filter

Reexamination Certificate

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Details

C382S205000, C382S224000, C382S261000, C382S268000, C382S275000

Reexamination Certificate

active

07822286

ABSTRACT:
A method filters pixels in a sequence of images. Each image in the sequence is partitioned into blocks of pixels, and the images are processed sequentially. The energy is determined for each block of pixels in each image. The energy of each block is based on variances of intensities of the pixels in the sequence of images. A 3D fuzzy filter is applied to each current pixel in each current block during the sequential processing. The 3D fuzzy filter considers the energy of the block, and the intensities of pixels spatially adjacent and temporally adjacent to the current pixel to remove blocking and ringing artifacts.

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