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Superior properties of the PRESB preconditioner for operators on two-by-two block form with square blocks.

Owe AxelssonJános Karátson
Published in: Numerische Mathematik (2020)
Keyphrases
  • fractal image coding
  • variable size
  • block size
  • desirable properties
  • image blocks
  • equal sized
  • dct coefficients
  • knowledge base
  • structural properties
  • feature vectors
  • block matching
  • formal language