虚影图像中去隔行算法的研究  

Research on De-interlacing Algorithm in Virtual Shadow Image

作　　者：景文博[1] 李勇男[1] 冯永明 祝勇[1] 

机构地区：[1]长春理工大学光电工程学院,长春130022 [2]吉林省移动通讯公司长春分公司,长春130000

出　　处：《长春理工大学学报（自然科学版）》2008年第3期42-45,共4页Journal of Changchun University of Science and Technology(Natural Science Edition)

基　　金：31基地资助项目

摘　　要：在现代的测试系统中,大多数使用模拟的CCD隔行扫描捕获图像。由于隔行相机对运动图像捕获时,当运动目标的速度高于CCD的场积分时间时,相邻两场图像间就会发生位移,场图像合成帧图像会发生错位和虚影。本文采用三种模式方法对隔行虚影图像进行处理,一是当像素静止状态,采用前后两场内插;二是对运动状态,分别采用隔场基于块的运动估计和临场基于像素的运动补偿;三是中间状态,只能利用场内的信息来内插。最后对补偿后的图像采用中值滤波有效地抑制运动补偿的块效应。实验结论验证测试系统中隔行虚影图像得到很好的处理效果。In the modem test system, the most the camera which is analog and interlaced scan is used. When the speed of the moving objects is higher than the field integration time ofCCD, the two adjacent fields can appear the displacement, the frame which can appear the dislocation and the virtual shadow is composed of two field images. The article uses three kinds of mode methods to processing the interlacing virtual shadow image. Firstly, static pixel uses two fields interpola- tion; Secondly, the state motion uses the separate fields to make motion estimation based on the block and uses the adjacent fields to make motion compensation based on pixel; Thirdly, in the middle state, only can use the information which is in the fields to interpolate. Finally, to compensated images use the median filter effectively to restrain the blocking effect of motion compensation. The experimental conclusion confrms that interlaced virtual shadow image, which obtains the very good processing effect.

关 键 词：隔行转逐行 运动估计 运动补偿 方向相关性 

分 类 号：TN919.81[电子电信—通信与信息系统]