基于运动补偿和自适应插值的混合去隔行方法  

A hybrid motion-compensated de-interlace with adaptive interpolation

作　　者：丁勇[1] 孙纲德[1] 严晓浪[1] 

机构地区：[1]浙江大学超大规模集成电路设计研究所,浙江杭州310027

出　　处：《浙江大学学报（工学版）》2011年第2期323-329,共7页Journal of Zhejiang University：Engineering Science

基　　金：国家"863"高技术研究发展计划资助项目(2009AA011706);浙江大学基本科研业务费专项资助项目(KYJD09012)

摘　　要：针对传统运动补偿去隔行算法因运动估计失误造成的局部插值失真,提出一种基于自适应插值的混合运动补偿去隔行算法.通过边缘检测和运动估计的置信评估,提高了边缘信息和运动矢量的鲁棒性;利用运动矢量和边缘等信息自适应地选择插值方法,有效抑制了因边缘定位不准或运动估计失误等造成的插补缺陷,保护了边缘的连续性和图像的锐利度.实验表明,混合去隔行算法能够自动融合运动补偿插值和边缘定向插值的优点,对运动估计的失误具有更强的抵御性,大大提升了图像的清晰度,表现出比传统算法更优的性能.Motion compensated de-interlacing algorithm often suffers from inaccurate motion estimation which deteriorate the visual quality significantly.To deal with this problem,a hybrid motion compensated de-interlace with adaptive interpolation was proposed.Firstly,with confidence assessments,edge information robustness and motion vector reliability were improved.Then using the edge information and motion vectors,the proposed method chose interpolation techniques adaptively,so that it could merge the merits of motion compensated interpolation and edge oriented interpolation.Experiments show that the hybrid algorithm offers better performance than the conventional de-interlace methods in terms of robustness to the erroneous motion vectors and high spatial resolution without evident artifacts introduced.

关 键 词：插值 去隔行 自适应 运动补偿 

分 类 号：TP752[自动化与计算机技术—检测技术与自动化装置] TP302.2[自动化与计算机技术—控制科学与工程]