Ray casting is an important algorithm in direct volume rendering, but the computation of sampling-points on ray is time-consuming, and the large amount of computation is a primary drawback for real time rendering. This paper presents a fast intersecting technique of a line with some family planes, so using the intersected points can easily gain the sampling-points and their characters. This method can eliminate lots of computation for trilinear interpolation by using coherency of lines. In order to improve image quality, the paper also presents an adaptive sampling method based on rapid intersecting.

医学影像的传输和处理系统是远程医疗中的重要组成部分,本文给出了一个利用JavaApplet实现远程医学影像传输和处理的完整解决方案.系统由数据读取和图像处理两部分组成,Java Applet读取数据是利用JDBC三层模式来实现的,图像处理功能的实现主要使用Java AWT和Java 2DAPI.系统在远程医疗中有一定的实用价值,而且具有平台独立、简单易用等特点.

医学影像的传输和处理系统是远程医疗中的重要组成部分,文章给出了一个利用Java Applet实现远程医学影像传输和处理的完整解决方案.系统由数据读取和图象处理两部分组成,Java Applet读取数据是利用JDBC三层模式来实现的,图象处理功能的实现主要使用Java AWT和Java 2D API.系统在远程医疗中有一定的实用价值,而且具有平台独立、简单易用等特点.