基于OMAP的嵌入式08JC1409200显示终端

发布时间：2018-01-14 12:39

本文关键词：基于OMAP的嵌入式08JC1409200显示终端　出处：《华东师范大学》2012年硕士论文　论文类型：学位论文

【摘要】：乳腺癌是威胁女性健康和生命的主要恶性肿瘤之一,居妇女各类恶性肿瘤死亡率的首位。近年来,无创伤的影像学检查作为早期乳腺癌的重要诊断依据和二级预防措施,以其准确性、灵敏性、便捷性及可重复性等优势,可广泛应用于女性乳腺癌筛查工作中。正确的早期乳腺癌诊断和综合治疗对有效实施手术切除病灶,提高患者远期生存率和降低死亡率有着特殊的意义。基于这一共识已经吸引了众多学者关注到基于影像学检查的乳腺癌早期诊断的研究中,其中微波乳腺癌检测技术作为一种无损非侵入性的检测方式逐渐成为热点。随着科技的进步和人们医疗保健意识的不断增强,在今天,已有越来越多的高科技手段运用到医疗系统的设计当中,特别是便携式医疗电子设备尤其需要利用先进的嵌入式系统和集成电路的等技术来实现智能化、小型化、低功耗、高分辨率等目标。本文的研究课题属于上海市科学技术发展基金基础重点资助项目——乳腺癌超短脉冲(微波)近场成像方法和早期乳腺癌诊断方法研究(项目编号08JC1409200)的一部分。基于嵌入式Linux系统和Qt图形界面库开发便携式乳腺癌显示终端,其智能化、高画质、低成本的设备特点可用于医院、家庭和其他非医院环境,可作为早期预防手段提供早诊治的信息,具有对人体最小干预(无创/微创)的特点,对提高早期乳腺癌的检出,降低死亡率意义深远。本文首先基于项目前期研究阐述了BRATUMASS系统的探测原理及其系统构成,引出成像显示终端的设计；通过对显示终端的功能需求分析,综合考虑其软硬件平台的实现,确定基于OMAP3530-MINI开发板,嵌入式Linux操作系统和Qt/Embedded图形界面库搭建系统软硬件开发环境。在此基础上,概述了嵌入式软件开发模式,即宿主机-目标机模式；详细阐述嵌入式软件宿主机开发环境和目标板开发环境的搭建过程。最后概要介绍了显示终端软件功能模块的框架结构；提出技术实现的难点,并就成像算法、Qt的核心机制——信号与槽机制、绘图引擎实现等关键技术做了说明；重点分析了基于Qt图形化视图框架的乳腺癌显示终端软件的开发,详细介绍各功能模块的设计,最后展示了系统设计的效果。通过病例的成像结果显示,本系统实现了基于嵌入式Linux系统的微波乳腺癌检测显示终端,其成像输出能够准确发现可疑病灶点。还可通过后续数据库和网络接入技术开发达,进一步实现远程医疗。
[Abstract]:Breast cancer is one of the main malignant tumors threatening the health and life of women. As an important diagnostic basis and secondary preventive measure of early breast cancer, non-invasive imaging examination has the advantages of accuracy, sensitivity, convenience and repeatability. It can be widely used in the screening of female breast cancer. The correct diagnosis and comprehensive treatment of early breast cancer are effective in the surgical resection of lesions. It is of special significance to improve the long-term survival rate and reduce mortality. Based on this consensus, many scholars have paid close attention to the early diagnosis of breast cancer based on imaging examination. Microwave breast cancer detection technology as a non-invasive detection method has gradually become a hot spot. With the progress of science and technology and the increasing awareness of medical care, today, more and more high-tech means have been applied to the design of medical system. In particular, portable medical electronic devices need to use advanced embedded systems and integrated circuits to achieve the goals of intelligence, miniaturization, low power consumption and high resolution. The research topic of this paper belongs to the key project of Shanghai Science and Technology Development Fundation--Breast Cancer Ultra-short Pulse (Microwave) Near-field Imaging method and early Breast Cancer diagnosis method (. Project number 08JC1409200. Based on embedded Linux system and QT graphical interface library, a portable breast cancer display terminal is developed. Its intelligent, high quality, low cost equipment features can be used in hospitals, families and other non-hospital environments, can be used as an early preventive means to provide early diagnosis and treatment information. It has the characteristics of minimal intervention (noninvasive / minimally invasive) to improve the detection of early breast cancer and reduce mortality. In this paper, the detection principle and system structure of BRATUMASS system are expounded based on the previous research, and the design of imaging display terminal is introduced. By analyzing the functional requirements of the display terminal and considering the implementation of its hardware and software platform, the development board based on OMAP3530-MINI is determined. The software and hardware development environment of embedded Linux operating system and Qt/Embedded graphical interface library is built. On this basis, the development mode of embedded software is summarized. That is, host-target machine mode; The building process of embedded software host development environment and target board development environment is described in detail. Finally, the frame structure of the display terminal software function module is introduced briefly. The key technologies of imaging algorithm QT, such as signal and slot mechanism, drawing engine implementation, etc., are presented. The development of breast cancer display terminal software based on QT graphical view frame is analyzed, and the design of each function module is introduced in detail. Finally, the effect of system design is shown. Through the case imaging results, the system realized the microwave breast cancer detection and display terminal based on embedded Linux system. Its imaging output can accurately detect suspicious focus points and can be developed through subsequent database and network access technology to further realize telemedicine.
【学位授予单位】：华东师范大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP368.1;TN873

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