远洋捕捞渔船电子监控视频文字信息提取  

Text extraction from electronic monitoring video of ocean fishing vessels

作　　者：张胜茂[1] 樊伟[1] 张衡[1] 杨胜龙[1] 沈介然 邹国华 ZHANG Shengmao;FAN Wei;ZHANG Heng;YANG Shenglong;SHEN Jieran;ZOU Guohua(Key Laboratory of Oceanic and Polar Fisheries,Ministry of Agriculture and Rural Affairs,East China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Shanghai200090,China;Liancheng Overseas Fishery(Shenzhen)Co.,Ltd.,Shenzhen Guangzdong518035,China;Shanghai Junding Fishery Technology Co.,Ltd.,Shanghai200090,China)

机构地区：[1]中国水产科学研究院东海水产研究所,农业农村部远洋与极地渔业创新重点实验室,上海200090 [2]深圳市联成远洋渔业有限公司,广东深圳518035 [3]上海峻鼎渔业科技有限公司,上海200090

出　　处：《渔业信息与战略》2020年第2期141-146,共6页Fishery Information & Strategy

基　　金：国家自然科学基金重点项目(61936014);国家重点研发计划2019YFD0901405;农村农业部渔业渔政管理局项目(17190020);杨浦区人力资源和社会保障局博士后项目(杨人社〔2019〕45号)。

摘　　要：计算机图像处理技术发展迅速,基于OCR(Optical Character Recognition)的图像文字提取得到广泛应用。在远洋渔业捕捞中,EMS(Electronic Monitoring System)逐渐开始使用,视频中文字信息提取是系统的重要功能之一。通过左右舷、前甲板、后甲板安装的4个摄像头,获取渔船作业的视频影像,再利用jTessBoxEditor软件生成图片样本,人工添加文字标签,然后通过tesseract软件训练标注的样本,制作traineddata字库,最后用Python编程提取远洋捕捞渔船监控视频中的时间、位置、航速、航向等信息,提取的960条记录,经与原图片对比全部正确,提取的文字信息可为视频存档和渔业管理提供参考。In recent years,computer image processing technology has developed rapidly.OCR(Optical Character Recognition)based image text extraction is widely used.EMS(Electronic Monitoring System)has been gradually used in the fishing of ocean fisheries.The video images of fishing boat operation can be obtained through four cameras installed on port,starboard,front deck and rear deck respectively.Text information extraction in video is one of the main functions of the system.In this paper,jtessboxeditor is used to generate image samples.Text position and border are labeled manually.Then,the labeled samples are trained with Tesseract software.Then the output trained data library file can be got.Finally,program is written in Python to call library file.The time,position,speed,heading and other information are extracted from the monitoring video of ocean fishing vessels.The 960 records extracted are all correct compared with the original pictures.The extracted text information can provide reference for video archiving and fishery management.

关 键 词：远洋渔业 视频监控 OCR 电子监控系统 

分 类 号：S977[农业科学—捕捞与储运]