Object-based rate allocation with spatio-temporal trade-offs

Jeong W. Lee, Anthony Vetro, Yao Wang, Yo Sung Ho

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

Abstract

This paper describes a bit allocation algorithm that can achieve a constant bit rate when coding multiple video objects (MVOs), while improving the rate-distortion (R-D) performance over the reference method for MPEG-4 object-based rate control. In object-based coding, bit allocation is performed at the object level and temporal rates of different objects may vary. The proposed algorithm in this paper deals with these two issues. We pay particular attention to maintenance of buffer occupancy levels and propose a new method for spatio-temporal trades-offs for object-based coding. In order to improve the coding efficiency, we also consider several new R-D coding modes. These modes are available at the encoder to determine the best R-D performance under different coding conditions and are chosen automatically. Simulation results demonstrate moderate improvements at low and high bit rates. One important key aspect of the proposed algorithm is that the actual coded bits in the proposed algorithm are similar to the target bits over a wide range of bit rates. Consequently, the proposed algorithm has not experienced the buffer overflow/underflow over the entire range of bit rates.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsC.-C. Jay Kuo
Pages374-384
Number of pages11
Volume4671 I
DOIs
StatePublished - 2002
EventViual Communications and Image Processing 2002 - San Jose, CA, United States
Duration: Jan 21 2002Jan 23 2002

Other

OtherViual Communications and Image Processing 2002
CountryUnited States
CitySan Jose, CA
Period1/21/021/23/02

Fingerprint

coding
buffers
coders
maintenance
simulation

Keywords

  • MPEG-4
  • MVO Video Coding
  • Object-based Coding
  • Rate Allocation
  • Rate Control
  • Rate Distortion

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Lee, J. W., Vetro, A., Wang, Y., & Ho, Y. S. (2002). Object-based rate allocation with spatio-temporal trade-offs. In C-C. Jay Kuo (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 4671 I, pp. 374-384) https://doi.org/10.1117/12.453078

Object-based rate allocation with spatio-temporal trade-offs. / Lee, Jeong W.; Vetro, Anthony; Wang, Yao; Ho, Yo Sung.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / C.-C. Jay Kuo. Vol. 4671 I 2002. p. 374-384.

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

Lee, JW, Vetro, A, Wang, Y & Ho, YS 2002, Object-based rate allocation with spatio-temporal trade-offs. in C-C Jay Kuo (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 4671 I, pp. 374-384, Viual Communications and Image Processing 2002, San Jose, CA, United States, 1/21/02. https://doi.org/10.1117/12.453078
Lee JW, Vetro A, Wang Y, Ho YS. Object-based rate allocation with spatio-temporal trade-offs. In Jay Kuo C-C, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 4671 I. 2002. p. 374-384 https://doi.org/10.1117/12.453078
Lee, Jeong W. ; Vetro, Anthony ; Wang, Yao ; Ho, Yo Sung. / Object-based rate allocation with spatio-temporal trade-offs. Proceedings of SPIE - The International Society for Optical Engineering. editor / C.-C. Jay Kuo. Vol. 4671 I 2002. pp. 374-384
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