Factorization of nonuniform block orthogonal transforms

Takayuki Nagai, Shigeki Obata, Masaaki Ikehara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Block orthogonal transforms (BOT's) are commonly used for lots of applications. Conventional BOT's are based on uniform filter banks, however, nonuniform BOT's are often superior to uniform ones. In this research, we investigate the factorization of nonuniform BOT's which does not involve the tree structure. Therefore, optimal nonuniform BOT's are available in the sense of transform coding gain. Some design examples are included to confirm our theory. We also apply the nonuniform BOT to the transform image coding.

Original languageEnglish
Title of host publicationICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
PublisherIEEE
Pages1449-1452
Number of pages4
Volume3
Publication statusPublished - 1998
EventProceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. Part 1 (of 6) - Seattler, WA, USA
Duration: 1998 May 121998 May 15

Other

OtherProceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. Part 1 (of 6)
CitySeattler, WA, USA
Period98/5/1298/5/15

Fingerprint

Filter banks
Image coding
Factorization
factorization
coding
filters

ASJC Scopus subject areas

  • Signal Processing
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics
  • Software

Cite this

Nagai, T., Obata, S., & Ikehara, M. (1998). Factorization of nonuniform block orthogonal transforms. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings (Vol. 3, pp. 1449-1452). IEEE.

Factorization of nonuniform block orthogonal transforms. / Nagai, Takayuki; Obata, Shigeki; Ikehara, Masaaki.

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 3 IEEE, 1998. p. 1449-1452.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Nagai, T, Obata, S & Ikehara, M 1998, Factorization of nonuniform block orthogonal transforms. in ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 3, IEEE, pp. 1449-1452, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP. Part 1 (of 6), Seattler, WA, USA, 98/5/12.
Nagai T, Obata S, Ikehara M. Factorization of nonuniform block orthogonal transforms. In ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 3. IEEE. 1998. p. 1449-1452
Nagai, Takayuki ; Obata, Shigeki ; Ikehara, Masaaki. / Factorization of nonuniform block orthogonal transforms. ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. Vol. 3 IEEE, 1998. pp. 1449-1452
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