Layered Low-Density Generator Matrix Codes for Super High Definition Scalable Video Coding System
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Special Section on Latest Advances in Fundamental Theories of Signal Processing
Layered Low-Density Generator Matrix Codes for Super High Definition Scalable Video Coding System
Yoshihide TONOMURADaisuke SHIRAITakayuki NAKACHITatsuya FUJIIHitoshi KIYA
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2009 Volume E92.A Issue 3 Pages 798-807

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Abstract

In this paper, we introduce layered low-density generator matrix (Layered-LDGM) codes for super high definition (SHD) scalable video systems. The layered-LDGM codes maintain the correspondence relationship of each layer from the encoder side to the decoder side. This resulting structure supports partial decoding. Furthermore, the proposed layered-LDGM codes create highly efficient forward error correcting (FEC) data by considering the relationship between each scalable component. Therefore, the proposed layered-LDGM codes raise the probability of restoring the important components. Simulations show that the proposed layered-LDGM codes offer better error resiliency than the existing method which creates FEC data for each scalable component independently. The proposed layered-LDGM codes support partial decoding and raise the probability of restoring the base component. These characteristics are very suitable for scalable video coding systems.

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© 2009 The Institute of Electronics, Information and Communication Engineers
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