摘要
在大视场光学显示设备中,画面会因畸变而严重变形。为了使最终的成像结果不发生畸变,根据大视场光学显示设备的畸变特性,选择适合的校正方法并进行优化,提出对称变换法和改进的双线性插值法,对像源图像进行预处理,消除畸变带来的不利影响。给出了较为全面的算法性能衡量指标,利用Matlab和VC++6.0对校正算法进行详细的仿真和深入的分析、比较。仿真结果表明,经过优化的校正算法保证了畸变校正的准确性和实时性。
The image may deform seriously in large-FOV display devices due to distortion.Appropriate correction method was chosen and optimized based on the distortion characteristics to avoid distortion in the final imaging.The methods of symmetrical transform and improved bilinear interpolation were proposed for pretreatment of image source to eliminate the adverse effects of the distortion.The comprehensive indexes for estimating the algorithm performance were presented.The correction algorithm was analyzed by simulation with Matlab and VC＋＋ 6.0,and the experimental result shows that this optimized method can improve the veracity of distortion correction as well as the real-time performance.
出处
《电光与控制》
北大核心
2011年第5期23-27,共5页
Electronics Optics & Control
关键词
畸变校正
大视场光学设备
多项式变换
双线性插值
仿真
distortion correction
large-FOV display device
polynomial transform
bilinear interpolation
simulation
