Title :
Adaptive Joint Source-Channel Coding for Motion JPEG2000 Sequences Transmission over Unknown Channels
Author :
Liu, Jieyu ; Zhang, Deyun ; Wang, Yue ; Wang, Lixin
Author_Institution :
Sch. of Electron. & Inf. Eng., Xi´´an Jiaotong Univ.
Abstract :
In the light of effective and reliable transmission of MJPEG2000 sequences through unknown channels, an adaptive joint source-channel coding scheme based on feedback is put forward in this paper. SNR of a channel is estimated in real time by using subspace-based estimation method, and the error bit rate is obtained accordingly. Then by fully using the different characteristics of the JPEG2000 bit stream packets, a target function is constructed, by which different protections are carried out for different packets according to their impacts on the quality of the reconstructed image. Thus an adaptive rate-allocation is realized in a lower complexity. Experiments results show that the present algorithm improves on the existing ones
Keywords :
combined source-channel coding; image motion analysis; image reconstruction; image sequences; video coding; video communication; adaptive joint source-channel coding; bit stream packets; feedback; motion JPEG2000; reconstructed image quality; sequences transmission; subspace-based estimation; Adaptive systems; Bit error rate; Bit rate; Decoding; Error correction codes; Image coding; Image reconstruction; Protection; Resilience; Transform coding; Error bit rate; JSCC; Motion JPEG2000;
Conference_Titel :
Intelligent Control and Automation, 2006. WCICA 2006. The Sixth World Congress on
Conference_Location :
Dalian
Print_ISBN :
1-4244-0332-4
DOI :
10.1109/WCICA.2006.1713165
