一种基于棱柱镜的立体图像二维抗混叠数字滤波方法  

Lenticular-based 2D anti-aliasing digital filtering method for stereo image

作　　者：杨蕾[1,2] 宋晓炜[2] 侯春萍[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072 [2]中原工学院电子信息学院,郑州450007

出　　处：《计算机应用》2009年第1期81-85,共5页journal of Computer Applications

基　　金：国家发改委高技基金资助项目([2005]2247);国家自然科学基金资助项目(60672077)

摘　　要：基于棱柱镜LCD自由立体显示器及其立体图像的特征,针对频域混叠失真问题,提出了一种新的二维抗混叠数字滤波方法。该方法分析了倾斜棱柱镜光栅下多视点LCD子像素排列规律,并结合多维采样理论建立了子采样模型,设计出相应的二维数字滤波器,从而对各视点图像进行二维频域抗混叠滤波以消除失真。实验证明,该方法复杂度低、滤波效果好,对同类自由立体显示器具有适用性。Based on the characteristic of lenticular-based LCD auto-stereo display and its corresponding stereo image, aiming to solve spectrum aliasing problem, this paper proposed a novel 2D anti-aliasing digital filtering method. This method analyzed multiview LCD sub-pixel arrangement of slant lenticular, established the corresponding sub-sampling model with multi-dimensional sampling theory, and designed the corresponding 2D digital filter, so that 2D spectrum anti-aliasing filtering was performed on each view image and the distortion of stereo image was effectively eliminated. Experimental results show that the proposed method is of low complexity, good filtering effect, and strong applicability to similar auto-stereo displays.

关 键 词：棱柱镜 多视点 立体图像 抗混叠 滤波 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]