Embedded wavelet transform image coding using scalar quantization 標(biāo)量量化嵌入式小波變換圖像編碼
An embedded wavelet quadtree interframe coding algorithm an embedded wavelet quadtree interframe coding algorithm 一種嵌入式小波四叉樹幀間編碼算法
Then , we focus on embedded wavelet algorithm , include embedded zerotrees wavelet algorithm , set partitioning in hierarchical trees algorithm and x - tree image coding algorithm 并根據(jù)ezw算法在量化過程中存在的問題,提出了一種改進(jìn)的零樹量化編碼算法。
Since it is critical to hdtv , dvd , video conference , etc . in order to avoid the faults of international standards , a number of embedded wavelet coefficients coding models have been proposed 視頻壓縮及傳輸由于具有廣泛的應(yīng)用前景,成為國際研究的熱點(diǎn)。它是hdtv 、 dvd 、視頻會(huì)議、 internet視頻及其它相關(guān)應(yīng)用的核心技術(shù)。
Wavelet subband coding method has advanced considerably in 2d image compression . many effective embedded wavelet image coding methods have already emerged . we improve the spiht algorithm by expanding the coding method used for gray image to color image of the video 本文對(duì)已有的spiht算法進(jìn)行改進(jìn),充分利用其空間方向樹能夠高效組織小波系數(shù)的優(yōu)勢,將其由針對(duì)灰度圖像的編碼方法擴(kuò)展為對(duì)視頻序列彩色圖像的壓縮。