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Czasopisma help
  1. 2 Fundamenta Informaticae
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  1. 2 Cieplinski L.
Lata help
  1. 2 1998
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Content available remote Entropy-constrained multiresolution vector quantisation for image coding
Cieplinski L.
Fundamenta Informaticae
|
1998
|
Vol. 34, nr 4
389-396
EN
A new image coding scheme based on multiresolution image representation and entropy-constrained vector quantisation is proposed. The proposed technique is evaluated using a series of images. The results show a performance improvement over the previously proposed multiresolution scheme at relatively high bitrates. The reasons for worse performance at low bitrates are discussed.
2
Content available remote A review of image and video coding standards
Cieplinski L.
Fundamenta Informaticae
|
1998
|
Vol. 34, nr 4
347-367
EN
We present the most popular image and video coding standards. We concentrate on lossy compression techniques and ISO and ITU-T standards. JPEG image compression standard is described and its successor, currently developed JPEG-2000 is mentioned. For video, there are several standards aimed at different applications. We describe them starting with ISO MPEG-1 and continuing with MPEG-2, MPEG-4, H.261 and H.263.
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