【摘要】 提出了一种完全可伸缩视频编码的实现方法。给出了一种采用运动补偿时域滤波、二维离散小波变换和EZW编码的可伸缩编码方案,方案根据视频图像运动特征自适应选择图组结构,在将时间、空间、质量三方面的伸缩性有机地结合的同时,改进了完全可伸缩视频编码系统性能。最后给出了该方案的实验结果,表明了系统的有效性。更多还原

【Abstract】 This paper presents an achievement for full-scalable video coding.A full-scalable video coding system is offered,which is based on the Motion Compensated Temporal Filte(rMCTF),Discrete Wavelet Transforms(DWT)and Embedded Zero tree Wavelet(EZW).In this system,adaptive Group of Pictures(GOP)structure is presented for MCTF,and the coded bit-stream is organized to achieve the brilliant combination of three main scalabilities:temporal,spatial and PSNR scalabilities.In the end experimental results show the coding efficiency of the system.更多还原