DocumentCode :
2638025
Title :
Intra Refreshment Algorithm for ROI over Packet Loss Networks
Author :
Ruan Ruolin ; Hu Ruimin ; Xiao Xuqing ; Chen Hao
Author_Institution :
Nat. Eng. Res. Center for Multimedia Software, Wuhan Univ., Wuhan
fYear :
2008
fDate :
18-20 June 2008
Firstpage :
388
Lastpage :
388
Abstract :
The subjective quality requirement of ROI is not the same as non-ROI There are very many researches on ROI, but they are little research which jointed the overall RDO theory, the rate control, intra macroblock refreshment and ROI. So the paper proposes the RDO intra refreshment algorithm based ROI, and it uses the end-to-end overall distortion theory to analysis and compute the distortion of ROI and non-ROI, and it makes the marcoblock in ROI obtain more intra refreshment chances. As the bit rate is constrained, so the bit rate of the ROI and non-ROI must be reallocated. At last, the algorithm is implemented in reference software JM12.2 of JVT. The simulation results show that the proposed intra refreshment algorithm based ROI obtained a better subjective quality of the reconstructed video than the traditional algorithm in ROI at the decoder.
Keywords :
rate distortion theory; video coding; ROI; end-to-end overall distortion theory; intramacroblock refreshment; intrarefreshment algorithm; packet loss networks; reference software; video reconstruction; Algorithm design and analysis; Bit rate; Computational modeling; Computer errors; Decoding; Eyes; Humans; Mean square error methods; Software algorithms; Video sequences;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Innovative Computing Information and Control, 2008. ICICIC '08. 3rd International Conference on
Conference_Location :
Dalian, Liaoning
Print_ISBN :
978-0-7695-3161-8
Electronic_ISBN :
978-0-7695-3161-8
Type :
conf
DOI :
10.1109/ICICIC.2008.331
Filename :
4603577
Link To Document :
بازگشت