一種高效的運(yùn)動(dòng)補(bǔ)償三維小波視頻編碼方案
An Efficient Motion Compensated Three Dimension Wavelet Video Coding System
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摘要: 該文提出了一種高效的運(yùn)動(dòng)補(bǔ)償三維小波視頻編碼方案。該方案采用運(yùn)動(dòng)補(bǔ)償時(shí)域分析技術(shù)，以有效去除視頻序列中存在的時(shí)間冗余。然后，基于視頻序列的運(yùn)動(dòng)特征，自適應(yīng)確定幀組結(jié)構(gòu)，在提高編碼效率的同時(shí)降低內(nèi)存需求和運(yùn)算復(fù)雜度。最后，根據(jù)小波圖像系數(shù)特性，采用基于四叉樹分裂的小波圖像編碼方法對(duì)三維時(shí)/空子帶進(jìn)行編碼，以獲得更高的壓縮效率。實(shí)驗(yàn)結(jié)果表明，與其它運(yùn)動(dòng)補(bǔ)償三維小波視頻編碼方法相比，該文提出的編碼方案能夠獲得更好的性能。Abstract: This paper describes an efficient Motion-Compensated (MC)three dimension wavelet video coding system. In this system, MC temporal analysis is used to remove temporal redundancy. Then an adaptive group of pictures structure according to characteristics of motion can increase the coding efficiency and reduce computational complexity and memory requirement at the same time. Finally, a quadtree-based wavelet image coding method is proposed, which can adapt the property of wavelet image coefficient. The experimental results show that, the coding system is better than other motion-compensated three dimension wavelet video coding methods.
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