摘要
本文介绍和分析了在序列图象运动补偿编码中,用于对帧间(运动)位移矢量进行估值的一类算法——块匹配算法,并在此基础上利用预测方法对该算法作出了改进。计算机模拟实验结果表明,改进后算法不但在位移矢量的估值精度上优于原算法,而且运算复杂度显著下降。
We first introduce and analyse the so-called block matching algorithm which is fre-quently used for estimating the interframe displacement vectors in motion-compensationcoding of image sequences.Then,on the basis of what is described above,we propose animprovement on this algorithm by using a predictive method.The computer simulation re-sults show that the improved algorithm is superior to the original one both in the accuracyof the estimation of displacement vectors and in the computation complexity.
出处
《西安电子科技大学学报》
EI
CAS
CSCD
北大核心
1991年第3期1-7,共7页
Journal of Xidian University
关键词
图象编码
补偿
块匹配
位移
计算
sequence image coding
motion compensation
block matching displacement estimation
correlative prediction
