MPEG-Based Scalable Video Codec with 3-D Subband Decomposition

• Autorzy: Domański M. , Łuczak A. , Maćkowiak S. , Świerczyński R.
• Języki publikacji: EN

Abstrakty

EN

The MPEG-2 video coding standard provides the functionality of spatial scalability in an inefficient way. Therefore solutions based on subband decomposition gained a lot of interest very recently. In particular, this paper deals with scalable (hierarchical) coding of video at bitrates in the range af about 2-6 Mbps. The solution proposed in the paper is based on both temporal and spatial resolution reduction performed for data transmitted in a base layer. The basic idea is to employ three-dimensional subband decomposition. The assumption is that the base layer is encoded fully MPEG-2 compatible. Bitstreams related to high spatial frequencies are encoded using a technique that exploits mutual dependencies between low- and high-spatial-frequency subbands. The technique is implemented as a C++ program with about 12 980 lines of code.

Słowa kluczowe

EN

MPEG-2; spatio-temporal scalability; 3-D subband decomposition

• Wydawca: Polska Akademia Nauk, Wydział IV Nauk Technicznych
• Czasopismo: Bulletin of the Polish Academy of Sciences. Technical Sciences
• Rocznik: 1999
• Tom: Vol. 47, nr 3
• Strony: 247--253
• Opis fizyczny: 2 rys., 1 tabela, bibliogr. 11 poz.

Twórcy

autor

Domański M.

autor

Łuczak A.

autor

Maćkowiak S.

autor

Świerczyński R.

• Poznań University of Technology, Institute of Electronics and Telecommunications, ul. Piotrowo 3A, 60-965 Poznań, Poland (Instytut Elektroniki i Telekomunikacji Politechniki Poznańskiej)