基于ARM嵌入式系统及图像处理的印版检测系统
|
摘要
进几年来,印刷行业正在向一个崭新的领域发展,目前的发展趋势为向小批量、多品种和高质量的方向发展。而随着印刷机印刷速度的不断加快,在印刷过程中,如过不采用一定的技术手段及时发现并排除故障,就意味着将生产出大量的废品和次品,因此,这套质量检测系统是伴随着人们对印刷质量要求的发展应运而生的。
国外在印刷质量检测这方面已经进行了大量的研究,并形成了一定的体系及规模。但是,我国的印刷机制与国外的是有着明显的区别的,他们的质量检测产品不适应我国印刷材料和印刷机器的不稳定性这种情况的印刷质量检测。随着近几年的使用情况得知,由于地域条件和人文素质的不同,使得我国引入的国外的印品质量检测系统不能最大程度地发挥应有的优势,由此导致我国的印刷行业在很大程度上跟不上国外水平。因此,针对我们的具体条件和现有的各种相关技术的发展水平,开发出更高效、更高质量、更能适应我国的印刷水平和印刷机器的的印刷品质量检测系统,是我国印刷行业的重任!
本文构建了基于ARM芯片的嵌入式LINUX操作系统,用嵌入式CMOS图像采集(OV511+OV7620)芯片的USB摄像头作为图像采集设备。再利用当前流行的数字图像处理技术解决印版图像的分割以及图形分析的处理,完成图像分析后,进行印版网点面积率的计算,最终实现印版网点密度的检测的功能。
基于嵌入式的印刷密度检测系统将使得印刷过程中的密度检测数字化、自动化、系统化,为进一步提高印刷质量提供了保证。本课题集中研究印刷质量检测中的印刷密度检测问题。对嵌入式印刷密度检测系统进行探索,以及对该系统进行模型设计及实现,为进一步实现印刷质量检测做好准备。
In recent years, the printing industry is a new area to development, the development trend of the small volume, variety and quality direction. Users of print products with increasingly stringent quality requirements, followed by the printing quality inspection technology research and system development, have become a hot topic of international trade. Printing quality testing technology is not only the quality of the data of the printing and the printing industry a solid foundation for standardized, and the automatic control of the printing technology is also necessary to follow through the processing chain. Especially into the past few years, with the acceleration of the printing press in the printing process, such as over use of certain techniques do not detect and eliminate faults, it means that will produce large amounts of waste and defects, therefore, quality inspection system is a set of people associated with the development of the printing quality requirements came into being.
In this area there has been a substantial amount of research abroad. But their products do not suited our printing materials and printing machines cause of the uncertainty of the printing quality. Due to geographical conditions and different quality of the humanities, making foreign goods quality inspection system imported to China cannot be to maximize the advantages of the printing industry, and our country cannot keep up the level of foreign countries. Therefore, for our specific conditions and the existing level of development of related technologies to develop more efficient and higher-quality print quality inspection system is the responsibility of China's printing industry!
In this paper, we make a research about the Design and Implementation of the print density detection methods based on ARM embedded system. And to build chips based on ARM embedded LINUX operating system. Use embedded CMOS image acquisition (OV511 + OV7620) camera chip USB as the image acquisition equipment to achieve image acquisition function and digital image processing technology to solve block-image segmentation and other processing in order to carry out the calculation of the rate of dot area, and reach the realization of the print density detection.
Printing based on embedded systems density detection will enable the printing process of testing the density of digitization, automation, systematic, in order to further improve the printing quality guaranteed. Focus on the issue of printing quality printing density detection. Detection of the printing density of embedded systems to explore, as well as the model of the system design and implementation, in order to further prepare the printing quality.
The main works in this thesis are:
1. Demand for research and needs analysis: After a lot of books and information access and in-depth site visits printing, print quality inspection system on the demand and needs analysis research, and the system's technical and economic feasibility of a comprehensive analysis, while print quality detection and processing aspects of research and business processes, and make requirements specification.
2. Technology and algorithm description: As the system a lot of technical professionals for non-image is very strange, so the main thesis of the image detection techniques have been described and analyzed. Including image segmentation, binary image of the two methods. The system algorithms involved in grayscale image processing algorithms, image binarization algorithm.
3. Design: According to the technical characteristics of RAM, the system was constructed based on ARM chip embedded LINUX operating system, with embedded CMOS image acquisition (OV511 + OV7620) camera chip USB device as an image capture of image acquisition. Re-use digital image processing technology to solve the printed version of the image segmentation (binarization), and other processing to the printed version of the calculation of dot area, dot density of the plate to achieve the function of detection.
4. Systems analysis, summary and outlook: the speed of the system and database security analysis, summary of existing work, and the future work of the vision.
国外在印刷质量检测这方面已经进行了大量的研究,并形成了一定的体系及规模。但是,我国的印刷机制与国外的是有着明显的区别的,他们的质量检测产品不适应我国印刷材料和印刷机器的不稳定性这种情况的印刷质量检测。随着近几年的使用情况得知,由于地域条件和人文素质的不同,使得我国引入的国外的印品质量检测系统不能最大程度地发挥应有的优势,由此导致我国的印刷行业在很大程度上跟不上国外水平。因此,针对我们的具体条件和现有的各种相关技术的发展水平,开发出更高效、更高质量、更能适应我国的印刷水平和印刷机器的的印刷品质量检测系统,是我国印刷行业的重任!
本文构建了基于ARM芯片的嵌入式LINUX操作系统,用嵌入式CMOS图像采集(OV511+OV7620)芯片的USB摄像头作为图像采集设备。再利用当前流行的数字图像处理技术解决印版图像的分割以及图形分析的处理,完成图像分析后,进行印版网点面积率的计算,最终实现印版网点密度的检测的功能。
基于嵌入式的印刷密度检测系统将使得印刷过程中的密度检测数字化、自动化、系统化,为进一步提高印刷质量提供了保证。本课题集中研究印刷质量检测中的印刷密度检测问题。对嵌入式印刷密度检测系统进行探索,以及对该系统进行模型设计及实现,为进一步实现印刷质量检测做好准备。
In recent years, the printing industry is a new area to development, the development trend of the small volume, variety and quality direction. Users of print products with increasingly stringent quality requirements, followed by the printing quality inspection technology research and system development, have become a hot topic of international trade. Printing quality testing technology is not only the quality of the data of the printing and the printing industry a solid foundation for standardized, and the automatic control of the printing technology is also necessary to follow through the processing chain. Especially into the past few years, with the acceleration of the printing press in the printing process, such as over use of certain techniques do not detect and eliminate faults, it means that will produce large amounts of waste and defects, therefore, quality inspection system is a set of people associated with the development of the printing quality requirements came into being.
In this area there has been a substantial amount of research abroad. But their products do not suited our printing materials and printing machines cause of the uncertainty of the printing quality. Due to geographical conditions and different quality of the humanities, making foreign goods quality inspection system imported to China cannot be to maximize the advantages of the printing industry, and our country cannot keep up the level of foreign countries. Therefore, for our specific conditions and the existing level of development of related technologies to develop more efficient and higher-quality print quality inspection system is the responsibility of China's printing industry!
In this paper, we make a research about the Design and Implementation of the print density detection methods based on ARM embedded system. And to build chips based on ARM embedded LINUX operating system. Use embedded CMOS image acquisition (OV511 + OV7620) camera chip USB as the image acquisition equipment to achieve image acquisition function and digital image processing technology to solve block-image segmentation and other processing in order to carry out the calculation of the rate of dot area, and reach the realization of the print density detection.
Printing based on embedded systems density detection will enable the printing process of testing the density of digitization, automation, systematic, in order to further improve the printing quality guaranteed. Focus on the issue of printing quality printing density detection. Detection of the printing density of embedded systems to explore, as well as the model of the system design and implementation, in order to further prepare the printing quality.
The main works in this thesis are:
1. Demand for research and needs analysis: After a lot of books and information access and in-depth site visits printing, print quality inspection system on the demand and needs analysis research, and the system's technical and economic feasibility of a comprehensive analysis, while print quality detection and processing aspects of research and business processes, and make requirements specification.
2. Technology and algorithm description: As the system a lot of technical professionals for non-image is very strange, so the main thesis of the image detection techniques have been described and analyzed. Including image segmentation, binary image of the two methods. The system algorithms involved in grayscale image processing algorithms, image binarization algorithm.
3. Design: According to the technical characteristics of RAM, the system was constructed based on ARM chip embedded LINUX operating system, with embedded CMOS image acquisition (OV511 + OV7620) camera chip USB device as an image capture of image acquisition. Re-use digital image processing technology to solve the printed version of the image segmentation (binarization), and other processing to the printed version of the calculation of dot area, dot density of the plate to achieve the function of detection.
4. Systems analysis, summary and outlook: the speed of the system and database security analysis, summary of existing work, and the future work of the vision.
引文
[1]龚修端,刘听.印刷品质量实时检测技术[J].包装工程.2003,24(6):45-49.
[2] Anthony P.Staton.Reproduction Characteristics of Computer-to-Plate Imaging Systems.TAGA 1995 Proceedings,1995:1-28.
[3]钟灿涛.国内CTP技术回顾与展望[J].印刷技术,2001.
[4]数码印刷编辑部.CTP版材全面出击[J].数码印刷,2003.8:6-7.
[5] Anpassung von Computer to plate an die Standardisierung.Deutseher Drueker.2002,10.
[6]衣永政.网点图像显微检测方法研究[D].西安:西安理工大学,1999.3.
[7]王永刚.彩色印刷图像网点检测与识别算法的研究[D].西安:西安理工大学,2002.3.
[8]陈德荣编译.印刷品质量的检测与控制[M].北京:印刷l:业出版社,1998.
[9]胡涛,郑敏东,张晓惠.彩色印刷品质量检测技术的发展[J].印刷世界,2004(10).
[10]黄朝丽,仇建喜.机器视觉技术在圆网印花机自动对花系统中的应用[J].纺织科技进展,2006:3:48-50.
[11] Phillip Hutton and John Lind.The plate side of Computer-to-plate: printability and Runnability.TAGA 1998 Proceedings,1998:300-311.
[12]刘武辉.包装印刷中的密度研究[J].包装工程.2008年.
[13]陈路,李小东.密度检测在包装印刷中的应用[J].包装工程,2007年.
[14]刘岚等.基于ARM的嵌入式系统开发[M].北京:电子工业出版社. 2008.1.
[15]刘燕英.嵌入式Linux的实现及应用[J].2001嵌入式系统及单片机国际学术流会论文集.北京:航空航天大学出版社,2001,230-233.
[16] The ARM-THUMB Procedure Call Standard[M].ARM Limited..
[17]王鑫,陈晓竹,徐倩.嵌入式系统设计与实例开发实验教材I-USB接口的嵌入式图像采集与显示系统[J].中国计量学院学报2006(3)-60-63.
[18]万永波等.基于ARM的嵌入式系统Bootloader启动流程分析[J].微计算机信息2005,11-2:90-92..
[19]邹思轶.嵌入式Linux设计与应用[M].北京:清华大学出版社,2002:146-203.
[20]汪兵.WindowsCE嵌入式高级编程及其实例详解[M].北京:中国水利水电出版社,2008.
[21]拉伯罗斯著.邵贝贝等译.uC/OS-II:源码公开的实时嵌入式操作系统[Ml.北京:中国电力出版社,2001,1-15.
[22]孔祥营,伯桂枝.嵌入式实时操作系统VxWorks及其开发环境Tornado[M].北京:中国电力出版社,2002,19-3.
[23]赵荣椿.数字图像处理导论[M].西安:西北工业大学出版社,1999:l.
[24]何斌,马天予等。数字图像处理[M].北京:人民邮电出版社,2002.
[25] Kenneth.R.Castleman.数字图像处理[M].北京:电子工业出版社,1999:391.
[26]罗希平,田捷等.图像分割方法综述[J].模式识别与人工智能,12(3),1999:300-309.
[27]王举辉等.基于综合技术的二值化算法的研究与实现[J].微计算机信息,2007年.
[28] Raj Kamal(印度). Embedded Systems: Architecture Programming and Design.北京:清华大学出版社. 2005.5.
[29]龚震.嵌入式图像采集系统中的硬件实现研究[J].科技创新导报,2008.
[30]李绍民滕国库.嵌入式图像采集系统的硬件设计[D].大连海事大连学报.2004.
[31]姚聪等.基于ARM的嵌入式图像采集处理系统及其无线传输[J].电子技术,2003.
[32]朱园. Linux设备驱动程序的研究与开发[J].仪表技术,2008.
[33]王鑫等. USB接口的嵌入式图像采集与显示系统[J].中国计量学院学报,2006年
[34]林水明,章坚武,王俊.嵌入式Linux下USB主控制器驱动的开发与应用[C].嵌入式论文集,2003:21-22
[35]王纪川等.一种摄像机采集图像的二值化算法[J].计算机工程与应用,2007年
[36]马驰等.改进的多阙值动态二值化算法[J].计算机工程. 2006年.
[2] Anthony P.Staton.Reproduction Characteristics of Computer-to-Plate Imaging Systems.TAGA 1995 Proceedings,1995:1-28.
[3]钟灿涛.国内CTP技术回顾与展望[J].印刷技术,2001.
[4]数码印刷编辑部.CTP版材全面出击[J].数码印刷,2003.8:6-7.
[5] Anpassung von Computer to plate an die Standardisierung.Deutseher Drueker.2002,10.
[6]衣永政.网点图像显微检测方法研究[D].西安:西安理工大学,1999.3.
[7]王永刚.彩色印刷图像网点检测与识别算法的研究[D].西安:西安理工大学,2002.3.
[8]陈德荣编译.印刷品质量的检测与控制[M].北京:印刷l:业出版社,1998.
[9]胡涛,郑敏东,张晓惠.彩色印刷品质量检测技术的发展[J].印刷世界,2004(10).
[10]黄朝丽,仇建喜.机器视觉技术在圆网印花机自动对花系统中的应用[J].纺织科技进展,2006:3:48-50.
[11] Phillip Hutton and John Lind.The plate side of Computer-to-plate: printability and Runnability.TAGA 1998 Proceedings,1998:300-311.
[12]刘武辉.包装印刷中的密度研究[J].包装工程.2008年.
[13]陈路,李小东.密度检测在包装印刷中的应用[J].包装工程,2007年.
[14]刘岚等.基于ARM的嵌入式系统开发[M].北京:电子工业出版社. 2008.1.
[15]刘燕英.嵌入式Linux的实现及应用[J].2001嵌入式系统及单片机国际学术流会论文集.北京:航空航天大学出版社,2001,230-233.
[16] The ARM-THUMB Procedure Call Standard[M].ARM Limited..
[17]王鑫,陈晓竹,徐倩.嵌入式系统设计与实例开发实验教材I-USB接口的嵌入式图像采集与显示系统[J].中国计量学院学报2006(3)-60-63.
[18]万永波等.基于ARM的嵌入式系统Bootloader启动流程分析[J].微计算机信息2005,11-2:90-92..
[19]邹思轶.嵌入式Linux设计与应用[M].北京:清华大学出版社,2002:146-203.
[20]汪兵.WindowsCE嵌入式高级编程及其实例详解[M].北京:中国水利水电出版社,2008.
[21]拉伯罗斯著.邵贝贝等译.uC/OS-II:源码公开的实时嵌入式操作系统[Ml.北京:中国电力出版社,2001,1-15.
[22]孔祥营,伯桂枝.嵌入式实时操作系统VxWorks及其开发环境Tornado[M].北京:中国电力出版社,2002,19-3.
[23]赵荣椿.数字图像处理导论[M].西安:西北工业大学出版社,1999:l.
[24]何斌,马天予等。数字图像处理[M].北京:人民邮电出版社,2002.
[25] Kenneth.R.Castleman.数字图像处理[M].北京:电子工业出版社,1999:391.
[26]罗希平,田捷等.图像分割方法综述[J].模式识别与人工智能,12(3),1999:300-309.
[27]王举辉等.基于综合技术的二值化算法的研究与实现[J].微计算机信息,2007年.
[28] Raj Kamal(印度). Embedded Systems: Architecture Programming and Design.北京:清华大学出版社. 2005.5.
[29]龚震.嵌入式图像采集系统中的硬件实现研究[J].科技创新导报,2008.
[30]李绍民滕国库.嵌入式图像采集系统的硬件设计[D].大连海事大连学报.2004.
[31]姚聪等.基于ARM的嵌入式图像采集处理系统及其无线传输[J].电子技术,2003.
[32]朱园. Linux设备驱动程序的研究与开发[J].仪表技术,2008.
[33]王鑫等. USB接口的嵌入式图像采集与显示系统[J].中国计量学院学报,2006年
[34]林水明,章坚武,王俊.嵌入式Linux下USB主控制器驱动的开发与应用[C].嵌入式论文集,2003:21-22
[35]王纪川等.一种摄像机采集图像的二值化算法[J].计算机工程与应用,2007年
[36]马驰等.改进的多阙值动态二值化算法[J].计算机工程. 2006年.