• DocumentCode
    1332979
  • Title

    Compressive sampling and wavelet-based multi-view image compression scheme

  • Author

    Akbari, Akbar Sheikh ; Zadeh, P. Bagheri

  • Author_Institution
    Fac. of Comput., Eng. & Technol., Staffordshire Univ., Stafford, UK
  • Volume
    48
  • Issue
    22
  • fYear
    2012
  • Firstpage
    1403
  • Lastpage
    1404
  • Abstract
    A multi-view image codec using a disparity compensated lifting based wavelet transform and `compressive sampling (CS)` is presented. The input images are de-correlated into their sub-bands, using disparity compensated view filtering lifting based wavelet transforms. A wavelet transform is then applied to the baseband view, de-composing it into its sub-bands. High-frequency sub-bands are separately hard threshold. Wavelet-weights for high-frequency sub-bands are calculated and used to adjust threshold values for different sub-bands. The CS algorithm is then employed to generate measurements for each resulting sub-band. In the decoder side, the Basis Pursuit method is used to recover the high-frequency sub-bands. Results indicate that the proposed codec significantly outperforms the state-of-the-art CS-based multi-view image codecs.
  • Keywords
    data compression; decoding; filtering theory; image coding; image sampling; wavelet transforms; CS algorithm; CS-based multiview image codecs; basis pursuit method; compensated lifting based wavelet transform; compressive sampling; decoder side; disparity compensated view filtering lifting; high-frequency subbands; wavelet-based multiview image compression scheme;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2012.2613
  • Filename
    6352971