《基于DR的计算机辅助诊断系统软件设计》-毕业论文.doc

摘要 近年来，随着数字化医学图像采集设备的发展和普及应用，国内医院逐步引入了医学图像处理系统，传统的打印胶片正在被数字化的医学图像所取代。医学图像的数字化管理为病人减轻了负担，为医院节省大量开支，提高工作效率。计算机辅助诊断(CAD，computer aided diagnosis)技术的应用，更是改变了以往只能凭经验由多幅二维图像去估计病灶的大小及形状的工作方法，更进一步提高了诊断水平。本课题研究基于直接数字X光机(DR，Direct Radiography)的计算机辅助诊断系统，实现图像预处理，放大、增强、反转等多个功能。 关键字：计算机辅助诊断，医学图像，DICOM标准，图像处理 Abstract In recent years，with the popularization and application of digital devices which screen medicinal images，more and more hospital in China got used to image process system．The conventional kind of file was being replaced by the digital medicinal image．Digital image management can lighten the patient’s burden，save much expense for the hospital and make the doctors work more efficiently．The use of com- puter aided diagnosis even more changed the old method of guessing the focu’s size and figure based on a lot of plane images and experiences．It improved the diagnosis into a higher level．This study based on direct digital X ray machine (DR, Direct Ra- diography) Computer-aided diagnosis system，to achieve image preprocessing，enlar- ge，enhance，reverse and other features. Keywords：Computer Aided Diagnosis，Medicinal Images，DICOM Standard，Image Processing 目录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc263752460 1 绪论 PAGEREF _Toc263752460 \h 1 HYPERLINK \l _Toc263752461 1.1 课题研究的背景 PAGEREF _Toc263752461 \h 1 HYPERLINK \l _Toc263752462 1.2 课题研究的意义 PAGEREF _Toc263752462 \h 1 HYPERLINK \l _Toc263752463 1.3 国内外研究现状 PAGEREF _Toc263752463 \h 2 HYPERLINK \l _Toc263752464 1.4 本文的各章节安排 PAGEREF _Toc263752464 \h 4 HYPERLINK \l _Toc263752465 2 医学图像处理特点分析 PAGEREF _Toc263752465 \h 5 HYPERLINK \l _Toc263752466 2.1 医学图像的传输存储 PAGEREF _Toc263752466 \h 5 HYPERLINK \l _Toc263752467 2.2 医学图像处理的特点和难点 PAGEREF _Toc263752467 \h 6 HYPERLINK \l _Toc263752468 3 基于X光机的计算机辅助诊断系统 PAGEREF _Toc263752468 \h 8 HYPERLINK \l _Toc263752469 3.1 基于CCD的数字X光机 PAGEREF _Toc263752469 \h 8 HYPERLINK \l _Toc263752470 3.2 DICOM医学图像传输协议 PAGEREF _Toc263752470 \h 9 HYPERLINK \l _Toc263752471 3.3 计算机辅助诊断系统 P