MPEG-4 video object-based rate allocation with variable temporal rates

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

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


This paper describes a bit allocation algorithm to achieve a constant bit rate when coding multiple video objects (MVO's), while improving the rate-distortion (R-D) performance over the reference method for MPEG-4 object-based rate control [1,2]. In object-based coding, bit allocation is performed at the object level and temporal rates of different objects may vary. In this paper, we deal with these two issues. We pay particular attention to maintenance of buffer occupancy levels and propose a new method for spatio-temporal trade-offs for object-based coding. The proposed algorithm is able to successfully achieve the target bit rate, effectively code arbitrarily-shaped MVO's with different temporal rates, and maintain a stable buffer level.

Original languageEnglish (US)
Title of host publicationIEEE International Conference on Image Processing
StatePublished - 2002
EventInternational Conference on Image Processing (ICIP'02) - Rochester, NY, United States
Duration: Sep 22 2002Sep 25 2002


OtherInternational Conference on Image Processing (ICIP'02)
Country/TerritoryUnited States
CityRochester, NY

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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