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Träfflista för sökning "WFRF:(O'Nils Mattias) ;pers:(Ericsson A)"

Search: WFRF:(O'Nils Mattias) > Ericsson A

  • Result 1-2 of 2
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1.
  • Ericsson, A., et al. (author)
  • Comparison of Noise Reduction and MPEG-2 Compression Efficiency for Pre-Processing Video Filters
  • 2004
  • In: IWSSIP'04 : international workshop on systems, signals and image processing :   ( Poznan, 13-15 September 2004 ). - Poznan, Poland : Polish Society for Theoretical and Applied Electrical Engineering.
  • Conference paper (peer-reviewed)abstract
    • Video information that is input in digital video recorders or distributed over the Internet comes in various different qualities. One possibility to improve the video quality and also to improve the efficiency of the video encoder is to use different types of spatial or temporal video filters. This paper presents a comparison of the noise reduction efficiency for three different video filters. Additionally, the improvement of MPEG-2 encoding efficiency is compared. The results provide an efficiency function that can be used to select an appropriate filter type for a special situation.
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2.
  • Norell, Håkan, et al. (author)
  • Cubic Vector Median Filter for Noise Reduction and Improvement of Compression Efficiency
  • 2004
  • In: IWSSIP'04 : international workshop on systems, signals and image processing :   ( Poznan, 13-15 September 2004 ). - Poznan, Poland : Polish Society for Theoretical and Applied Electrical Engineering.
  • Conference paper (peer-reviewed)abstract
    • Encoding of image sequences is today a standard task for computers and home entertainment systems. The input material is often of shifting quality, i.e. corrupted by noise in various ways. In order to store the information in an effective way some kind of compression has to be applied. When video compression is applied on an image sequence, the result is sub optimal due to the introduced noise variations. This paper presents a new cubic median filter suitable for pre-processing of noise contaminated video sequences. The presented approach reduces the bit usage for MPEG-2 encoding with up to 62% for impulse noise impaired sequences and 38% for the corresponding Gaussian.
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  • Result 1-2 of 2
Type of publication
conference paper (2)
Type of content
peer-reviewed (2)
Author/Editor
O'Nils, Mattias (2)
Ericsson, A. (2)
Norell, Håkan (2)
University
Mid Sweden University (2)
Language
English (2)
Research subject (UKÄ/SCB)
Engineering and Technology (2)
Year
2004 (2)

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