基于显示画面的ELA去隔行算法  

Content-Based ELA Algorithm for De-interlacing

作　　者：张方辉[1] 杨丹[1] 王秀峰[2] 

机构地区：[1]陕西省平板显示技术工程研究中心 [2]陕西科技大学材料科学与工程学院,陕西西安710021

出　　处：《液晶与显示》2008年第3期322-326,共5页Chinese Journal of Liquid Crystals and Displays

基　　金：陕西省专利产业化项目(No2005ZZ-04);陕西省教育厅产业化项目(No06JC23)

摘　　要：在当前的去隔行算法中,场内去隔行法由于很好地实现了显示品质和运算成本的平衡而应用最为广泛。其中,基于边沿的线平均算法(Edge-based Line Average,ELA)由于在图像边沿部位重建方面的优异表现而为人们所熟知。文章提出了一种基于显示画面的ELA去隔行算法,其原理是将显示画面划分为面型、线型以及边沿型等3种类型,分别对它们采用本文设计的算法进行去隔行处理。实际模拟结果表明,该方法可以很好地避免边界模糊和锯齿状画面等不良现象的出现,有效降低了运算的复杂度。Intra-field methods have been widely used in de-interlacing algorithm for their high-ratio between performance and computational cost. In particular, the ELA algorithm is well known for its advantages in reconstructing the edges of images, although it degrades the image quality where the edges are not clear. In this paper, based on the displayed content, the viewed patterns were classified into three types： smooth, line and edge, and then de-interlaced separately according to the specially designed algorithm as proposed here. The simulation results showed that the proposed method achieves higher image quality but lower hardware complexity compared with conventional ELA algorithm.

关 键 词：视频处理 ELA算法 逐行显示 去隔行 

分 类 号：O241.6[理学—计算数学] TN141[理学—数学]