基于FPGA的二维图形快速生成和反走样实现  

Fast generation and anti aliasing of 2D graphics based on FPGA

作　　者：韩丽娜[1,2] 李振兴 史楠 Han Li-na;Li Zhen-xing;Shi Nan(Institute of Graphics and Image Processing,Xianyang Normal University,Xianyang,712000;School of computer science,Xi’an Shiyou University,Xi’an,710065)

机构地区：[1]咸阳师范学院图形图像研究所,陕西咸阳712000 [2]西安石油大学计算机学院,陕西西安710065

出　　处：《现代科学仪器》2018年第4期63-66,共4页Modern Scientific Instruments

基　　金：陕西省教育厅项目(17JK0826);咸阳师范学院“青蓝”人才工程项目(XSYQL201608);咸阳师范学院校级项目(15XSYK044)资助。

摘　　要：针对传统的Wu反走样算法和指数函数修正方法的缺陷,提出一种基于一元二次修正方法的图像生成与处理方法。文章首先就图像走样进行分析,并详细阐述了传统走样的问题,然后针对指数函数在图像修正上存在运算量大,并且修正效果不佳的问题,采用一元二次函数对修正模块进行修正。最后,采用搭建FPGA系统的方式,对上述方法进行验证。结果表明,在处理二维直线图像上,一元二次函数修正具有明显的优势。To overcome the shortcomings of traditional Wu anti-aliasing algorithm and exponential function correction method,an image generation and processing method based on unitary quadratic correction method is proposed.Firstly,the image aliasing is analyzed,and the traditional aliasing problem is expounded in detail.Then,aiming at the problem that the exponential function has a large amount of calculation in image correction and the effect of image correction is not good,the correction module is modified by the unitary quadratic function.Finally,the above method is verified by building FPGA system.The results show that one way and two times function correction has obvious advantages in the processing of twodimensional straight line images.

关 键 词：FPGA模块 一元二次函数 反走样 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]