摘要
提出了一种改进的精细可分级性编码方法aFGS.该方法采用高质量的增强层作为参考,提高了FGS编码方法的编码效率,同时也完全继承了FGS编码方法的精细可分级性;利用比FGS编码方法只增加一个缓冲区的双缓冲区结构弥补了PFGS编码方法计算复杂的不足;采用高质量参考未经过预测补偿的方法,有效的避免误差积累.给出了aFGS编码方法的原理描述,并设计了编解码器框图,通过实验验证了该方法的性能.
In this paper, advance Fine Granularity Scalability（aFGS） is investigated and improved. The proposed method uses high enchantment layer references with increasing quality for coding efficiency, and inherits fine granularity scalability of FGS coding. Double buffer framework, which increases one buffer in FGS video coding, reduces computational complexity of PFGS video coding. The method avoids error accumulation using high quality references without estimation and compensation. The principle is described in great detail, and the encoding and decoding framework are designed. In the end, performance of aFGS video coding is validated.
出处
《宁波大学学报（理工版）》
CAS
2005年第4期485-489,共5页
Journal of Ningbo University：Natural Science and Engineering Edition
关键词
视频编码
精细可分级性编码
基本层
增强层
video coding
fine granularity scalability coding
base layer
enchantment layer
