南京大学学报(自然科学版) ›› 2016, Vol. 52 ›› Issue (5): 795.
余双春,袁 杰,沈庆宏*
Yu Shuangchun,Yuan Jie,Sheng Qinghong*
摘要: 为了实现实时将隔行扫描信号转换为逐行扫描信号的目标,采用的是运动自适应去隔行方法,并配以多线程并行计算.运动自适应相对单场插值利用了图像在时间上的关联性,在运动区域、静止区域都能有更优的效果;相对于运动补偿,具有时间复杂度上的优越性,为实时处理做铺垫.运动自适应方法,采用了更好的运动检测方法,并通过运动修正更准确地划分动静区域,场内采用一种最大相关性的保持边缘方法进行插值,更好的保护图像的细节信息,此方法时间复杂度低,且在信噪比上优于其他常见运动自适应方法.基于多核服务器,进行多线程并行编程,充分利用了多核体系,计算效率大幅度提高.实验结果表明,方法处理后的图像效果相比其他方法更佳,实现了实时处理D1标准视频序列.
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