振动条件下图像显示性能分析系统关键技术  

Key Technologies for Image Display Performance under Vibration Environment

作　　者：侯阳[1] 赵歆波[1] 马钟[1] 陈敏华[2] 

机构地区：[1]西北工业大学 [2]中国人民解放军95007部队

出　　处：《中国机械工程》2013年第16期2212-2215,2222,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(61171156);西北工业大学基础研究基金资助项目(JC201043);西北工业大学研究生创业种子基金资助项目(z2012137)

摘　　要：基于计算机视觉技术研究在振动环境下图像显示设备显示性能自动化检测与分析的关键技术。首先针对系统在振动环境下的图像采集设计了一套移动测量减振平台,然后引入视频运动补偿方法,以减小拍摄图像时由于摄像机的轻微振动导致的图像模糊和偏移,最后利用亚像素线段提取技术对目标图像进行了检测与分析。实验结果表明,系统能够减少振动对拍摄图像的影响,通过视频运动的补偿操作,可对目标图像进行亚像素精度检测,从而实现图像显示设备显示性能的客观分析。Based on computer vision technology, the key technologies were presented for an auto- matic detection and analysis of the display performance of image display device under the vibration en- vironment. Firstly,we emphasized on the design of the bracket for image acquisition under vibration environment. After that, we focused on key algorithm of video motion compensation to reduce image blur and offset when capturing an image under camera--moved conditions. At last ,we detected and ex- tracted the straight line with sub--pixel accuracy. The experimental results show that the system can reduce the impact of vibration on the capture images, after video motion compensation operation, we can detect and analyze image with sub--pixel precision, and based on the results of the detection we can achieve objective analysis for image display performance.

关 键 词：振动环境 减振支架 运动补偿 线检测 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]