Alper Selver M, Fischer Felix, Kuntalp Mehmet, Hillen Walter
Dokuz Eylül University, Electrical and Electronics Engineering Department, Kaynaklar Campus, Buca, Izmir 35160, Turkey.
Comput Methods Programs Biomed. 2007 Jun;86(3):270-80. doi: 10.1016/j.cmpb.2007.03.008. Epub 2007 Apr 23.
As being a tool that assigns optical parameters, i.e. color, transparency, used in interactive visualization, transfer functions have very important effects on the quality of volume rendered medical images. However, finding accurate transfer functions is a very difficult, tedious, and time consuming task because of the variety of all possibilities. By addressing this problem, a software module, which can be easily plugged into any visualization program, is developed based on the specific expectations of medical experts. Its design includes both a new user interface to ease the interactive generation of the volume rendered medical images and a volumetric histogram based method for initial generation of transfer functions. In addition, a novel file system has been implemented to represent 3D medical images using transfer functions based on the DICOM standard. For evaluation of the system by various medical experts, the software is installed into a DICOM viewer. Based on the feedback obtained from the medical experts, several improvements are made, especially to increase the flexibility of the program. The final version of the implemented system shortens the transfer function design process and is applicable to various application areas.
作为一种用于交互式可视化中分配光学参数（即颜色、透明度）的工具，传递函数对体绘制医学图像的质量有着非常重要的影响。然而，由于可能性的多样性，找到准确的传递函数是一项非常困难、繁琐且耗时的任务。为了解决这个问题，基于医学专家的特定期望开发了一个软件模块，该模块可以轻松插入任何可视化程序。其设计包括一个新的用户界面，以简化体绘制医学图像的交互式生成，以及一种基于体积直方图的传递函数初始生成方法。此外，还实现了一种新颖的文件系统，以基于DICOM标准使用传递函数来表示3D医学图像。为了让不同的医学专家对该系统进行评估，该软件被安装到一个DICOM查看器中。根据从医学专家那里获得的反馈，进行了一些改进，特别是提高了程序的灵活性。所实现系统的最终版本缩短了传递函数设计过程，并且适用于各种应用领域。
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