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

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

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

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

2 Scopus citations

Abstract

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 language	English (US)
Journal	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	3
State	Published - Sep 28 2004
Event	Proceedings - IEEE International Conference on Acoustics, Speech, and Signal Processing - Montreal, Que, Canada Duration: May 17 2004 → May 21 2004

ASJC Scopus subject areas

Software
Signal Processing
Electrical and Electronic Engineering

Cite this

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title = "An adaptive coding scheme using affine motion model for MPEG P-VOP",

abstract = "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.",

author = "Xiaohuan Li and Jackson, {Joel R.} and Katsaggelos, {Aggelos K} and Mersereau, {Russell M.}",

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AU - Li, Xiaohuan

AU - Jackson, Joel R.

AU - Katsaggelos, Aggelos K

AU - Mersereau, Russell M.

PY - 2004/9/28

Y1 - 2004/9/28

N2 - 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.

AB - 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.

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Y2 - 17 May 2004 through 21 May 2004

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

Abstract

ASJC Scopus subject areas

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