This paper proposes a method of filtering a digital sensor image to efficiently reduce noise and to improve the sharpness of an image. To reduce the noise in an image captured by conventional image sensor, the proposed noise reduction filter selectively outputs one of results obtained by recursive temporal and spatial noise filtering values. By proposed noise filtering method, image detail can be well preserved and noise filtering artifacts which can be generated along the moving object boundary in image sequences by applying temporal noise filtering are prevented. Since the sharpness of noise filtered image can be inevitably deteriorated by noise filtering, the adaptive noise suppressed sharpening filter is also proposed. The proposed sharpening filter generates filter mask adaptively according to the pixel similarity information within filter mask and can obtain the continuous image quality by the easy-controllable gain control algorithm without noise boost-up in the smooth region.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    An effective image enhancement filtering for noisy image sequences


    Beteiligte:
    Lee, Ho-Young (Autor:in) / Park, Du-Sik (Autor:in) / Lee, Seong-Deok (Autor:in) / Kim, Chang-Yeong (Autor:in)

    Kongress:

    Digital Photography II ; 2006 ; San Jose,California,United States


    Erschienen in:

    Erscheinungsdatum :

    2006-01-23





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Small Target Detection in Noisy Image Sequences

    Li, J. / Shen, Z. / IEEE | British Library Conference Proceedings | 1997


    Accurate optical flow in noisy image sequences

    Spies, Hagen / Scharr, Hanno | IEEE | 2001


    Accurate Optical Flow in Noisy Image Sequences

    Spies, H. / Scharr, H. / IEEE | British Library Conference Proceedings | 2001


    Noise Filtering of Periodic Image Sequences

    Plebe, A. / IEEE | British Library Conference Proceedings | 2001