Scalable coding of very high resolution video using the virtual zerotree
Coding of HDTV and super high definition video requires not only high performance compression but also compatibility and scalability to satisfy transmission channels of various speeds and capacity and receivers working at different resolutions. A compatible and scalable coding scheme has been develo...
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| Published in: | IEEE transactions on circuits and systems for video technology Vol. 7; no. 5; pp. 719 - 727 |
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| Main Authors: | , |
| Format: | Journal Article |
| Language: | English |
| Published: |
IEEE
01.10.1997
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| Subjects: | |
| ISSN: | 1051-8215 |
| Online Access: | Get full text |
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| Abstract | Coding of HDTV and super high definition video requires not only high performance compression but also compatibility and scalability to satisfy transmission channels of various speeds and capacity and receivers working at different resolutions. A compatible and scalable coding scheme has been developed for these video signals. Wavelet decomposition is performed such that the low frequency band is of common intermediate format (CIF) order, which forms a low-resolution core of the full-sized video and is coded by MPEG. The high-frequency wavelet coefficients are coded by the proposed virtual zerotree which encodes the wavelet coefficients more efficiently than the simple zerotree. Also embedded in the scheme is the hierarchical motion compensation that gives high performance with a large capable compensation range, requires minimum computation, and reduces overhead motion information. |
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| AbstractList | Coding of HDTV and super high definition video requires not only high performance compression but also compatibility and scalability to satisfy transmission channels of various speeds and capacity and receivers working at different resolutions. A compatible and scalable coding scheme has been developed for these video signals. Wavelet decomposition is performed such that the low frequency band is of common intermediate format (CIF) order, which forms a low-resolution core of the full-sized video and is coded by MPEG. The high-frequency wavelet coefficients are coded by the proposed virtual zerotree which encodes the wavelet coefficients more efficiently than the simple zerotree. Also embedded in the scheme is the hierarchical motion compensation that gives high performance with a large capable compensation range, requires minimum computation, and reduces overhead motion information. Coding of HDTV and super high definition video requires not only high performance compression but also compatibility and scalability to satisfy transmission channels of various speeds and capacity and receivers working at different resolutions. A compatible and scalable coding scheme has been developed for these video signals. Wavelet decomposition is performed such that the low frequency band is of common intermediate format (CIF) order, which forms a low-resolution core of the full-sized video and is coded by MPEG. The high-frequency wavelet coefficients are coded by the proposed virtual zerotree which encodes the wavelet coefficients more efficiently than the simple zerotree. Also embedded in the scheme is the hierarchical motion compensation that gives high performance with a large capable compensation range, requires minimum computation, and reduces overhead motion information |
| Author | Ghanbari, M. Qi Wang |
| Author_xml | – sequence: 1 surname: Qi Wang fullname: Qi Wang organization: Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK – sequence: 2 givenname: M. surname: Ghanbari fullname: Ghanbari, M. |
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| Cites_doi | 10.1109/78.258085 10.1117/12.233031 10.1109/76.276170 10.1109/76.157160 10.1145/103085.103090 10.1109/79.91217 10.1109/83.480765 10.1109/76.510932 10.1109/29.45554 10.1109/TASSP.1986.1164962 10.1016/0923-5965(92)90014-7 10.1145/214762.214771 |
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| References | ref13 ref15 ref14 ohta (ref2) 1995 ref11 ref10 wang (ref19) 1996 algazi (ref6) 1994 ref1 ref17 ref16 ref18 iso (ref8) 1993 sawabe (ref7) 1994 algazi (ref5) 1994 ref9 (ref3) 1995 mallat (ref12) 1989; 37 (ref4) 1996 |
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| SubjectTerms | Embedded computing Frequency HDTV High definition video High performance computing Motion compensation Scalability Signal resolution Video compression Wavelet coefficients |
| Title | Scalable coding of very high resolution video using the virtual zerotree |
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