基于对象的可分级视频编码

doi:1000-436X(2007)11A-0044-05

摘要/Abstract

摘要：

针对MPEG4-FGS编码方法编码效率较低的不足，提出一种新的编码结构框架，实现了增强层运动补偿方法与基于对象的编码方法有机结合。该方法在增强层运用运动补偿，增加了高分辨率增强层，削弱了增强层的时间冗余，提高了编码效率。在位平面编码时运用选择性增强技术，提高了感兴趣区域的图像质量。实验证明了该方法的正确性和有效性。

关键词: 精细可分级, 运动补偿, 空间可分级, 基于对象的编码, 选择性增强

Abstract:

Due to the short of low coding efficiency of MPEG4-FGS,a new coding framework is proposed which com-bines motion compensation of method with coding method based on object organically.This method is of motion com-pensation in enhancement layer,high-spatial-resolution enhancement layer is additional,time redundancy of enhance-ment layer is decreased,coding efficiency is improved.With the help of selective enhancement in bit-plane,the picture quality of interested region is enhanced.The result of experiments proved the correctness and the validity of this method.

Key words: fine-granularity-scalable, motion compensation, spatial scalability, coding based on the image object, selec-tive enhancement

袁占亭,张秋余,王金德. 基于对象的可分级视频编码[J]. 通信学报, 2007, 28(11A): 44-48.

Zhan-ting YUAN,Qiu-yu ZHANG,Jin-de WANG. New fine granular scalable video coding method based on image object[J]. Journal on Communications, 2007, 28(11A): 44-48.

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