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A review of image and video coding standards

100%

Cieplinski L.

Fundamenta Informaticae

1998

tom Vol. 34, nr 4

347-367

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.

Modified H.263 codec with improved color reproduction

84%

Bartkowiak M. , Domański M. , Gerken P.

Image Processing & Communications

1998

tom Vol. 4, no 1-2

17--24

A modification of the H.263 intraframe mode is proposed. The modification is restricted to chrominance processing only. The two input chrominance components are converted into one scalar chrominance signal which is then processed by an H.263 coder with modified quantization of DCT coefficients. The original chrominance components are recovered using postprocessing after the H.263 decoding.