Cubic Vector Median Filter for Noise Reduction and Improvement of Compression Efficiency

Norell, HåkanMittuniversitetet,Institutionen för informationsteknologi och medier (-2013) (författare)

Poznan, Poland :Polish Society for Theoretical and Applied Electrical Engineering,2004
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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.

Ericsson, A. (författare)
O'Nils, MattiasMittuniversitetet,Institutionen för informationsteknologi och medier (-2013)(Swepub:miun)matoni (författare)
MittuniversitetetInstitutionen för informationsteknologi och medier (-2013) (creator_code:org_t)

Ingår i: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

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