高速铁路运行环境视频自适应去模糊方法  

Adaptive Blur Removal Method of Operating Environment Video for High-Speed Railway

作　　者：王凡 赵宏伟[2] 刘俊博 王胜春 武斯全 苏文婧 李唯一 WANG Fan;ZHAO Hongwei;LIU Junbo;WANG Shengchun;WU Siquan;SU Wenjing;LI Weiyi(Infrastructure Inspection Research Institute,China Academy of Railway Sciences,Beijing 100081,China;School of Computer and Information Technology,Beijing Jiaotong University,Beijing 100044,China;Beijing IMAP Technology Co.Ltd.,Beijing 100081,China)

机构地区：[1]中国铁道科学研究院集团有限公司基础设施检测研究所,北京100081 [2]北京交通大学计算机与信息技术学院,北京100044 [3]北京铁科英迈技术有限公司,北京100081

出　　处：《计算机工程与应用》2022年第21期258-263,共6页Computer Engineering and Applications

基　　金：中国铁道科学研究院集团有限公司重大课题(2020IMXM06)。

摘　　要：运动模糊是车载高速铁路运行环境视频中普遍存在的图像退化现象,对基于视频的高速铁路运行环境安全检查工作造成很大挑战。提出一种新的车载高速铁路运行环境视频采集系统,集成高清车载摄像机、信号同步单元、RFID标签阅读器、GNSS单元和惯性测量单元,能够采集高分辨率的运行环境视频数据。提出一种高速铁路运行环境视频自适应去模糊方法,利用惯性测量单元计算每帧图像曝光时间内摄像机的运动轨迹,并设计新的去卷积算法处理空间变化的模糊图像,从而得到复原图像。利用检测列车在实际高速铁路线路进行试验验证,结果表明:该方法能够自适应地去除车载高速铁路运行环境视频图像的模糊,实现了采集高质量运行环境视频数据的目的。Motion blur is a common image degradation phenomenon in the high-speed railway operating environment video,which results in a great challenge to the video-based safety inspection task of high-speed railway operating environment.Firstly,a new video acquisition system for high-speed railway operating environment is proposed,which integrates HD vehicle camera,signal synchronization unit,RFID tag reader,GNSS unit and inertial measurement unit to collect the high-resolution video.Then,an adaptive blur removal method for high-speed railway operating environment is proposed.The inertial measurement unit is used to calculate the motion trajectory of the camera in each frame of image exposure time,and a new deconvolution algorithm is designed to deal with the space-variant blur image,so as to obtain the restored image.Finally,the test is carried out on the actual high-speed railway line by using the detection train.The results show that the proposed method can adaptively remove the blur of the vehicle-mounted high-speed railway operating environmental video,and realize the purpose of collecting high-quality video of the operating environment.

关 键 词：高速铁路运行环境 视频采集系统 自适应去模糊 惯性测量单元 

分 类 号：U216.3[交通运输工程—道路与铁道工程]