Image analysis – Image enhancement or restoration
Reexamination Certificate
2006-10-10
2006-10-10
Wu, Jingge (Department: 2624)
Image analysis
Image enhancement or restoration
C382S275000, C375S240270
Reexamination Certificate
active
07120308
ABSTRACT:
An image recovery algorithm that recovers completely lost blocks in an image/video frame using spatial information surrounding these blocks. One application focuses on lost regions of pixels containing textures, edges and other image features that pose problems for other recovery and error concealment algorithms. The algorithm of this invention is based on the iterative application of a generic de-noising algorithm and does not require any complex preconditioning, segmentation, or edge detection steps. Utilizing locally sparse linear transforms and overcomplete de-noising, good PSNR performance is obtained in the recovery of such regions.
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Hung Yubin
Seiko Epson Corporation
Wu Jingge
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