基于OpenCV的试飞视频数据回放技术  

Playback Technology of Flight Test Video Data Based on OpenCV

作　　者：郝朝[1] 山寿[1] 刘升护[1] HAO Zhao;SHAN Shou;LIU Sheng-hu(Chinese Flight Test Establishment,Xi’an 710089,China)

机构地区：[1]中国飞行试验研究院,陕西西安710089

出　　处：《计算机技术与发展》2018年第11期155-158,共4页Computer Technology and Development

基　　金：国家国防科技工业局国防基础科研计划重点项目(JCKY2016205B006)

摘　　要：在飞行试验中,机载视频数据是试飞测试数据中的重要组成部分。目前机载记录的视频数据本身是没有时间的,时标叠加在每一帧视频画面的左上角,视频数据回放效率较低。为解决试飞视频时间识别以快速定位的问题,提出了一种基于OpenCV的试飞视频图像时间识别方案,通过在每帧图像数据前面打上时间戳实现精确时间跳转,快速定位至关键图像。首先介绍了OpenCV的基本概念,重点介绍图像处理与识别的工作流程及实现方法,然后论述了OpenCV在试飞视频图像处理和图像识别的具体应用。软件设计利用模块化和多线程的思路,提高处理效率,保证功能的可扩展性。目前该软件已成功应用于多个型号任务视频数据回放中,实际应用效果表明该技术时间识别效果良好,能够有效提高型号试飞效率。In flight test,airborne video data is an important part of flight test data.At present,airborne video data itself has no timestamp which is overlying on top-left of each frame of video picture,and the efficiency of video data playback is low.In order to solve the problem of the time identification of flight test video to quickly locate the key frame,we propose an image time identification scheme of flight test video based on OpenCV.The timestamp is hit on each frame of image data to achieve accurate time shift to quickly locate the key image.First we introduce the basic concept of OpenCV,focusing on workflow and implementation methods of image processing and identifying.Then we discuss the application of the OpenCV on flight test video image processing and image identifying.The modular and multi-threaded ideas are used in the software design to improve processing efficiency and ensure scalability of function.At present,the software has been successfully applied to replaying of video data of multiple types’task.The practical application shows that the technology has a well time identification effect and can effectively improve the efficiency of flight test.

关 键 词：机载视频 OPENCV 时间识别 图像处理 数据回放 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]