Adaptive switching mean filter using conditional morphological noise detector

Zhang, X. M.; Yin, Z. P.; Xiong, Y. L.
March 2008
Electronics Letters;3/13/2008, Vol. 44 Issue 6, p406
Academic Journal
The adaptive switching mean (ASM) filter is proposed to remove impulse noise. The filter first identifies the corrupted pixels using conditional morphological noise detection and then removes the detected impulses using the adaptive mean filter. Simulation results indicate that the ASM filter can suppress impulse noise effectively while preserving the details in the image very well, thus providing better restoration performance than many other switching-based filters.


Related Articles

  • Power divider with microstrip electromagnetic bandgap element for miniaturisation and harmonic rejection. Zhang, F.; Li, C. F. // Electronics Letters;3/13/2008, Vol. 44 Issue 6, p422 

    A novel technique for harmonic suppression and size reduction in planar Wilkinson power divider is presented. The proposed technique served by a microstrip electromagnetic bandgap element (MEBE) is used to reject the unwanted harmonics by employing its stopband effect and to reduce the length of...

  • A wide stopband and low loss bandpass filter using multiorder harmonic suppressed I/O lines. Vargas, Steve Ramírez; Min-Hang Weng; Chihng-Tsung Liauh; Hung-Wei Wu; Ru-Yuan Yang // Microwave & Optical Technology Letters;Jul2008, Vol. 50 Issue 7, p1893 

    In this article, a new wide stopband and low loss patch bandpass filter (BPF) using multiorder harmonic suppression is proposed. Two kinds of suppressed structures located under the I/O lines have been utilized to generate a wide harmonic suppression without affecting the performances at central...

  • Echo Cancellation.  // Network Dictionary;2007, p170 

    An encyclopedia entry for "Echo Cancellation," which refers to a method for removing unwanted signals from the main transmitted telephone voice signal, is presented.

  • Dynamic Adjustment of System Parameters Improves Echo and Noise Cancellation. Eslinger, Greg; Dixon, John // Wireless Design & Development;Oct2006, Vol. 14 Issue 10, p20 

    The article focuses on the development of a new approach that integrates echo cancellation, noise suppression and other sound enhancement technologies making it possible to adjust systems parameters more quickly to changing environments. The approach increases the potential for achieving natural...

  • Survey of Sparse Adaptive Filters for Acoustic Echo Cancellation. Samalla, Krishna; Rao, G. Mallikarjuna; Stayanarayana, Ch. // International Journal of Image, Graphics & Signal Processing;Jan2013, Vol. 5 Issue 1, p16 

    This paper reviews the existing developments of adaptive methods of sparse adaptive filters for the identification of sparse impulse response in both network and acoustic echo cancellation from the last decade. A variety of different architectures and novel training algorithms have been proposed...

  • Echo Cancellation Algorithms using Adaptive Filters: A Comparative Study. Pushpalatha, G. S.; Kumar, N. Mohan // International Journal on Recent Trends in Engineering & Technolo;Jan2014, Vol. 10 Issue 2, p36 

    An adaptive filter is a filter that self-adjusts its transfer function according to an optimization algorithm driven by an error signal. Adaptive filter finds its essence in applications such as echo cancellation, noise cancellation, system identification and many others. This paper briefly...

  • Substrate-integrated waveguide triple-band filter with improved frequency and bandwidth allocations. Kang Zhou; Chunxia Zhou; Wen Wu // Electronics Letters;9/20/2018, Vol. 54 Issue 19, p1132 

    Substrate-integrated waveguide triple-band bandpass filter composed of two dual-mode (TE101 and TE201) rectangular cavities coupled with two single-mode (TE101) ones is synthesised and designed based on dual-mode resonances and split-type dual-band symmetrical frequency response. By applying the...

  • in brief.  // Electronics Letters;6/28/2018, Vol. 54 Issue 13, p794 

    No abstract available.

  • Tackling the echo-control challenge. Kropotkin, Mike // EDN;04/13/2000, Vol. 45 Issue 8, p125 

    Features an electronic design for echo cancellation in telecommunication. Use of application specific integrated circuits in echo cancellation equipment; Noise reduction feature; Synthesis of a replica estimate of echo.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics