基于边缘的实时视频缩放引擎的设计与实现  

Design and implement of real-time video scaling engine based edge-based algorithm

作　　者：杨金孝[1] 张金凤[1,2] 周坚峰 万鹏[3] 

机构地区：[1]西北工业大学电子信息学院,陕西西安710129 [2]中航工业无线电电子研究所,上海200233 [3]中国人民解放军边防学院训练部办公室,陕西西安710108

出　　处：《电子设计工程》2011年第23期71-73,共3页Electronic Design Engineering

摘　　要：提出了一种基于边缘自适应插值算法的缩放引擎有效的设计方法,并通过FPGA验证。首先介绍了自适应插值算法的基本原理,接着提出了优化设计的缩放引擎系统结构,并系统的论述了数据缓冲模块的实现及高效的运算系数生成模块和插值计算模块。最后在FPGA上验证了该系统,结果表明,运用该算法插值获得了边缘清晰的目标图像,且该算法复杂度低,因此,适应于实时条件下的图像缩放。The paper presents a design method of image scaling engine based a novel adaptive edge-based interpolation algorithm. First, the basic theory of adaptive interpolation algorithm is introduced. Then, on the basis of this theory, a new design method for scaling engine is presented. Meanwhile, the data buffer unit and effective coefficients generating and interpolation unit are specially introduced. Finally, the FPGA experimental results show that our proposed algorithm achieves vivid edges of target images, improve the quality of the scaled image with low complexity. So it suitable for real-time image resizing.

关 键 词：实时图像处理 自适应插值算法 缩放引擎 FPGA 

分 类 号：TP302.11[自动化与计算机技术—计算机系统结构]