一种基于改进的边缘插值的运动自适应去隔行算法  

A motion adaptive algorithm of de-interlacing based on improved edge-based line averaging

作　　者：安慧中 刘卫东[1,2] 

机构地区：[1]中国海洋大学信息学院,山东青岛266100 [2]青岛海信电器股份有限公司,山东青岛266072

出　　处：《电子设计工程》2014年第5期187-189,共3页Electronic Design Engineering

摘　　要：针对从隔行视频到逐行视频的视频格式转换,提出一种基于改进的边缘插值的运动自适应去隔行算法,算法包括运动检测、改进的边缘插值和加权求插值及滤波3个步骤。运动检测通过计算相邻四场的两个单元块的绝对差值并与阈值对比计算,检测出运动情况并分类,改进的边缘插值提出了水平方向边缘搜索,并利用周围像素判断边缘,减小了误差,提高了小角度边缘搜索的精确度,加权插值根据运动情况分类计算,得出插值并进行滤波,此算法取得了很好的效果。To achieve the transformation from interlaced video format to de-interlaced video format,a motion adaptive algorithm of de-interlacing based on improved edge-based line averaging is presented,which includes motion detection,improved edge-based line averaging,weighted interpolation and filtering.Motion detection detects the movement status by calculating the two units of the adjacent four fields,the improved edge-based line averaging makes horizonal edge search possible,and proves the accuracy of small angle edge search,weighted interpolation and filtering obtain the excellent final results.

关 键 词：去隔行 运动检测 边缘插值 加权插值及滤波 

分 类 号：TN941.1[电子电信—信号与信息处理]