基于OK图像采集卡和VTK的医学图像处理系统

摘要

Objective On the basis of visualization and display function of VTK, a three-dimensional system that can be integrated into OK series image board is developed by VC + + 2008 to meet the requirements of medical image processing. Methods The paper introduces how to realize 3D surface rendering and volume rendering for 2D CT image sequences in DICOM format based on VC++ 2008 with VTK. The inner points and the normal vectors are calculated to form the virtual clipping plane, which in turn is used to incise the 3D object, obtain the information of virtual slices and display the virtual slice images on the screen simultaneously. Results The experimental results show that the system can effectively realize the 3D visualization of medical image and clip, rotate, zoom and translate the 3D image in any directions. Conclusions This system is useful for advancing the post-processing function of OK series image board and is important and valuable to theory research and clinic diagnosis.%目的针对当前医学图像处理的需要,在VTK类库提供的可视化与显示功能的基础上,用VC + + 2008设计和实现一个可集成于OK图像采集卡的三维可视化系统.方法在VC + +2008平台下,结合可视化工具包VTK,对DICOM格式的CT图像序列进行面绘制和体绘制,通过设置虚拟切面的内点和法向量对重建后的三维物体进行切割并获得虚拟切片的信息,在切割的同时可以同步显示出虚拟切片图像.结果 实验结果表明,该系统能有效地实现DICOM医学图像的体绘制和表面绘制,并且可以在任意方向切割、旋转、放大与平移三维图像.结论 上述系统对增强OK图像采集卡的后处理功能具有重要作用,在理论研究和临床应用上有重要意义和研究价值.