大纵深医学图像裸眼真三维显示

3D Autostereoscopic Medical Image Display with Long Visualization Depth

随着医疗技术的发展,现代医疗体系和方法对医学图像的高精准可视化具有更高的要求,裸眼三维显示将作为未来精准医疗的重要载体,提供给医生更加丰富的立体病灶组织结构信息,提高医生的诊疗效率。大纵深真三维显示系统能够增加显示的医学图像深度信息,实现全方位的医学解剖空间结构显示。本文基于立体全像技术,设计了高精度成像模型光学校准方法,实现精准大纵深成像模式;由于医学图像的高精度表面数据显示特点,我们分析了大纵深图像成像的三维像素特点,并据此进行了图像渲染的采样优化,系统具有对大纵深组织器官较好的三维空间深度显示性能,能够为临床医生提供更直观的解剖结构显示。

With the development of medical technology, modern medical systems and methods have higher requirements for the accurate visualization of medical images. 3D autostereoscopic display of medical images will serve as an important part for precisely medical services, for the reason that it can provide doctors with more spatial information about the spatial structure, which can improve effectiveness of medical treatment. The 3D autostereoscopic medical image display system with long visualization depth can increase the depth range of medical image, and achieve a comprehensive medical anatomy spatial structure display. Based on integral photography, a high-precision imaging model optical calibration method was designed to achieve a precise large depth imaging mode in the present study. Due to the high-precision displaying requirement of medical images, we analyzed the pixel-density in depth direction, and according to this, optimization of image rendering was performed. The system has better performance for tissue and organs with large depth range, which can provide clinicians with more intuitive anatomical structures.