| Improved spatio-SNR FGS video coding scheme using motion compensation on enhancement-layer |
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| 作者姓名： | Jiang Tao Zhang Zhaoyang Ma Ran & Shi Xuli Dept. of Electronic & Information Engineering School of Communication Shanghai Univ. Shanghai P. R. China |
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| 作者单位： | Jiang Tao，Zhang Zhaoyang，Ma Ran & Shi Xuli Dept. of Electronic & Information Engineering，School of Communication，Shanghai Univ.，Shanghai 200072，P. R. China |
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| 摘 要： | 1.INTRODUCTIONWith the highly speed development in computer andnetwork technology in recent years,it becomes truefor peopletoenjoy video multi mediaservices onInter-net or wireless network by using PC or non-PC de-vices accessing network.Obviously,such servicespresent great challenge to traditional video codingscheme.Because of variety of user’s accessing net-work,available bandwidth acquired by user is vari-ous.Moreover,network instantaneous bandwidth isvarying all the ti me,whichis t…
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| 收稿时间： | 23 November 2004 |
Improved spatio-SNR FGS video coding scheme using motion compensation on enhancement-layer |
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| Jiang Tao,Zhang Zhaoyang,Ma Ran & Shi Xuli Dept. of Electronic & Information Engineering,School of Communication,Shanghai Univ.,Shanghai ,P. R. China.Improved spatio-SNR FGS video coding scheme using motion compensation on enhancement-layer[J].Journal of Systems Engineering and Electronics,2006,17(1):37-42. |
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| Authors: | Jiang Tao Zhang Zhaoyang Ma Ran Shi Xuli |
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| Institution: | Dept. of Electronic & Information Engineering, School of Communication, Shanghai Univ., Shanghai 200072, P. R. China |
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| Abstract: | MPEG-4 fine-granularity-scalable (FGS) technology is an effective solution to resolve the network bandwidth varying because FGS provides very fine granular SNR scalability. However, this scalability is obtained with sacrifice of coding efficiency. An one-loop FGS structure is presented based on motion compensation (MC+FGS) to improve the coding efficiency of base FGS. Then it describes and discusses the hybrid spatial-SNR FGS (FGSS) structure that extends SNR scalability of FGS to spatial scalability (spatio-SNR scalability). FGSS structure inherent the low coding efficiency of FGS structure. Combining MC+FGS structure with FGSS structure, a structure of MC+FGSS structure is obtained which acquires both structures' advantages and counteracts both structures' defects. Experimental results prove the MC+FGSS structure not only obtains fine granular spatio-SNR scalability, but also achieves high coding efficiency. |
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| Keywords: | fine-granularity-scalable coding efficiency motion compensation spatial scalability MPEG-4 |
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