基于3D DCT的嵌入式零树视频编码

Embedded Zerotree Video Coding Based on 3D-DCT

一、前言 基于3-D DCT[1]的视频编码以其高压缩比及速度快等特点,具有在低码率信道下实现视频图像实时编码的潜能,对应用具有极高价值,且其算法复杂度低.在相同的压缩比较条件下,基于3-D DCT的视频编码方法所得到的重建图像质量要优于H.261或MPEG方法;在相同的重建图像质量的条件下,基于3-D DCT的视频编码方法的压缩比要高于H.261或MPEG方法.

With reorganizing the coefficients of 3D-DCT in three level zerotree structure,a video code program based on 3D-DCT method is presented in this paper,which can give very high commpresion ratio and good quanlity recovered video picture result as compared with XYZ video coding.