Multiple Description Image Coding With Hybrid Redundancy

Author

Xu, Zhiming ; Lin, Zhiping ; Makur, Anamitra

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore

fYear

2006

fDate

4-7 Dec. 2006

Firstpage

382

Lastpage

385

Abstract

This paper introduces a novel and effective multiple description image coding method by combination of polyphase downsampling and multiple description scalar quantizers. Different from previous works, the natural redundancy in images is fully exploited by polyphase downsampling on the spatial domain of images to help improving reconstruction quality by effective error concealment. This approach is also flexible for generating more than two descriptions with very low complexity and for distributing redundancy among them to combat possible erasures. Simulation results on real images demonstrate high robustness of the proposed scheme for highly lossy networks with packet loss up to 87.5%

Keywords

image coding; image reconstruction; image sampling; quantisation (signal); erasure resilient image coding; error concealment; hybrid redundancy; image reconstruction; image spatial domain; multiple description image coding; multiple description scalar quantizers; polyphase downsampling; Decorrelation; Image coding; Image reconstruction; PSNR; Propagation losses; Redundancy; Refining; Robustness; Signal generators; Streaming media; erasure resilient image coding; error concealment; hybrid redundancy; multiple description coding; polyphase downsampling;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2006. APCCAS 2006. IEEE Asia Pacific Conference on

Conference_Location

Singapore

Print_ISBN

1-4244-0387-1

Type

conf

DOI

10.1109/APCCAS.2006.342450

Filename

4145411