Viterbi algorithm is a kind of maximum likelihood decoding method , which can obtain high decoding speed and cost fixed decoding time , so it is widely used in deep space communication 維特比譯碼算法是一種最大似然譯碼,它可以得到較高的譯碼速度以及譯碼計(jì)算時(shí)間固定,因而在深空通信中得到廣泛應(yīng)用。
The experimental results manifest that the psnr of both the full reconstructed video sequences and the ones of frame rates changed are improved compared to the system base on haar wavelet . moreover , the decoding time of db2 filters is shorter than the haar one , the shorter the decoding time , the better the real - time displaying in the client side 實(shí)驗(yàn)結(jié)果表明,本系統(tǒng)與基于haar小波的可伸縮性視頻編解碼系統(tǒng)相比,完全重建的視頻圖像質(zhì)量和幀速率改變后的重建視頻圖像質(zhì)量都有了明顯的提高,并且解碼時(shí)間也有所縮短,具備了更好的實(shí)時(shí)性。