Title :
Error resilient multiplexed coding with RVLC
Author :
Xiaosong Wang ; Ogunfunmi, Tokunbo
Author_Institution :
Dept. of Electr. Eng., Santa Clara Univ., Santa Clara, CA, USA
Abstract :
A new class of error resilient source code - Multiplexed Code was recently introduced. It takes advantage of the fact that real multimedia signals, such as images, audios and videos, contain heterogeneous information that can be grouped at different priority levels. High priority information is assigned to fixed length codewords; the inherent redundancy is exploited to represent low priority information. In this paper, we introduce an enhanced version - MultiRVLC. It uses Multiplexed Codes with Reversible Variable Length Coding (RVLC) to achieve further error resilient improvement. For example, PSNR is increased by 3.4dB for still images at 5e-3 bit error rate.
Keywords :
error statistics; source coding; variable length codes; MultiRVLC; bit error rate; error resilient multiplexed coding; error resilient source code; fixed length codewords; inherent redundancy; multimedia signals; priority information; reversible variable length coding; Bit error rate; Encoding; Image coding; Multiplexing; PSNR; Redundancy; Resilience;
Conference_Titel :
Signal Processing Conference, 2005 13th European
Conference_Location :
Antalya
Print_ISBN :
978-160-4238-21-1