An adaptive coding scheme using affine motion model for MPEG P-VOP

Xiaohuan Li*, Joel R. Jackson, Aggelos K Katsaggelos, Russell M. Mersereau

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

2 Scopus citations


Block matching has been used for motion estimation and motion compensation in MPEG standards for years. While it has an acceptable performance in describing motion between frames, it requires quite a few bits to represent the motion vectors. In certain circumstances, the use of whole frame affine motion models would perform equally well or even better than block matching in terms of motion accuracy, while it results in the coding of only 6 parameters. In this paper, we modify an MPEG-4 codec by adding (1) 6 affine model parameters to the frame header, (2) mode selection among INTRA, SKIP, INTER-16×16, INTER-8×8, and GLOBAL-AFFINE modes by Lagrange optimal rate-distortion criteria. Simulation results demonstrate 10-20% decrease in bit-rate, compared to the MMS' codec for an average coded P-frame with the same reconstruction PSNR.

Original languageEnglish (US)
JournalICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
StatePublished - Sep 28 2004
EventProceedings - IEEE International Conference on Acoustics, Speech, and Signal Processing - Montreal, Que, Canada
Duration: May 17 2004May 21 2004

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering


Dive into the research topics of 'An adaptive coding scheme using affine motion model for MPEG P-VOP'. Together they form a unique fingerprint.

Cite this