• DocumentCode
    3595891
  • Title

    An adaptive super-resolution of videos with noise information on camera systems

  • Author

    Ono, Toshiyuki ; Hasegawa, Hiroshi ; Yamada, Isao ; Sakaniwa, Kohichi

  • Author_Institution
    Dept. of Commun. & Integrated Syst., Tokyo Inst. of Technol., Japan
  • Volume
    2
  • fYear
    2005
  • Abstract
    We present a novel adaptive super-resolution of videos based on an embedded constraint version of adaptive projected subgradient method (Yamada & Ogura, Numerical Functional Analysis and Optimization, vol 25, no.7&8, p.593-617, 2004). The super-resolution image recovery problem is formulated as an estimation of linear time-varying systems, which is a modified version of (Elad & Feuer, IEEE Trans. on Image Proc., vol.8, no.3, p.387-395, 1999). Our method efficiently improves the estimation accuracy by simple iterative operations which can be processed on parallel systems. Robustness to additive noise as well as inaccurate estimation of degradation parameters, is realized by incorporating stochastic information of the noise.
  • Keywords
    adaptive signal processing; gradient methods; image resolution; stochastic systems; video signal processing; adaptive projected subgradient method; adaptive video super-resolution; additive noise robustness; camera system noise information; estimation accuracy; iterative operations; linear time-varying system estimation; noise statistical information; super-resolution image recovery; Additive noise; Cameras; Constraint optimization; Functional analysis; Image resolution; Iterative methods; Noise robustness; Parameter estimation; Time varying systems; Videos;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Acoustics, Speech, and Signal Processing, 2005. Proceedings. (ICASSP '05). IEEE International Conference on
  • ISSN
    1520-6149
  • Print_ISBN
    0-7803-8874-7
  • Type

    conf

  • DOI
    10.1109/ICASSP.2005.1415540
  • Filename
    1415540