Fast and robust parameter estimation method for global motion compensation in the video coder

Author

Kim, Eung Tae ; Kim, Hyung-Myung

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

45

Issue

1

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

76

Lastpage

83

Abstract

We describe a method for estimating and compensating 3D camera motion in image sequences for applications to a video coding system. To improve the estimation accuracy of the global motion parameter, we propose a robust algorithm which selects the reliable observation points adaptively and eliminates the bad observation points effectively. Unlike the existing linear recursive algorithms with an arbitrary thresholding, the proposed algorithm converges fast and is robust to feature matching error. Experimental results show that the proposed method improves the coding efficiency and reduces the computation time

Keywords

feature extraction; image matching; image sequences; motion compensation; motion estimation; parameter estimation; video coding; 3D camera motion; coding efficiency; computation time reduction; estimation accuracy; experimental results; fast parameter estimation; feature matching error; global motion compensation; global motion parameter; image sequences; linear recursive algorithms; reliable observation points; robust algorithm; robust parameter estimation method; video coder; video coding system; Cameras; Flowcharts; Image sequences; Least squares methods; Motion compensation; Motion detection; Motion estimation; Parameter estimation; Robustness; Video coding;

fLanguage

English

Journal_Title

Consumer Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0098-3063

Type

jour

DOI

10.1109/30.754420

Filename

754420