A novel context modeling scheme for motion vectors context-based arithmetic coding

Author

Ghandi, Mahmoud ; Ghandi, M. Mahdi ; Shamsollahi, M. Bagher

Author_Institution

Sch. of Electr. Eng., Sharif Univ. of Technol., Tehran, Iran

Volume

4

fYear

2004

Firstpage

2021

Abstract

A new context modelling scheme for arithmetic coding of motion vectors (MVs) is proposed. The model uses the correlation between the horizontal and vertical components of the MVs to improve the probability estimation of symbols. The accurate probability estimation can therefore improve the efficiency of the context-based arithmetic coder. The proposed scheme has been adapted to the H.264 advanced video codec and the simulation results show that a considerable bit rate saving can be achieved in MV coding.

Keywords

arithmetic codes; correlation methods; data compression; image motion analysis; parameter estimation; probability; video codecs; video coding; H.264 video codec; context modeling scheme; context-based arithmetic coding; horizontal vector component; motion vectors; probability estimation; symbol estimation; vertical vector component; video compression; Arithmetic; Automatic voltage control; Bit rate; Context modeling; Entropy coding; Equations; Video codecs; Video coding; Video compression; Yield estimation;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Computer Engineering, 2004. Canadian Conference on

ISSN

0840-7789

Print_ISBN

0-7803-8253-6

Type

conf

DOI

10.1109/CCECE.2004.1347631

Filename

1347631