公开(公告)号：US20050148848A1

公开(公告)日：2005-07-07

申请号：US10981058

申请日：2004-11-03

申请人： Yang Guang ,  Eugene Keong ,  Ralf Kockro

发明人： Yang Guang ,  Eugene Keong ,  Ralf Kockro

IPC分类号： A61B5/05 ,  A61B19/00 ,  G01N33/48 ,  G01N33/50 ,  G06F19/00 ,  G06T1/00 ,  G06T15/00 ,  G06T17/40 ,  G09B23/28

CPC分类号： G06T19/00 ,  G06T2210/41 ,  G06T2210/62 ,  G06T2219/028 ,  G09B23/285

摘要： Improved systems and methods for stereoscopically displaying and virtually viewing tube-like anatomical structures are presented. Stereoscopic display of such structures can provide a user with better depth perception of the structure being viewed and thus make a virtual examination more real. In exemplary embodiments according to the present invention, ray shooting, coupled with appropriate error correction techniques, can be utilized for dynamic adjustment of an eye convergence point for stereo display. In exemplary embodiments of the present invention, the correctness of a convergence point can be verified to avoid a distractive and uncomfortable visualization. Additionally, in exemplary embodiments of the present invention, convergence points in consecutive time frames can be compared. If rapid changes are detected, the system can compensate by interpolating transitional convergence points. In exemplary embodiments according to the present invention ray shooting can also be utilized to display occluded areas behind folds and protrusions in the inner colon wall. In exemplary embodiments according to the present invention, interactive display control functionalities can be mapped to a gaming-type joystick or other three-dimensional controller, freeing thereby a user from the limits of a two-dimensional computer interface device such as a standard mouse or trackball.

摘要翻译： 提出了用于立体显示和虚拟观察管状解剖结构的改进的系统和方法。 这种结构的立体显示可以为用户提供对所观察结构的更好的深度感知，从而使虚拟检查变得更真实。 在根据本发明的示例性实施例中，与适当的纠错技术相结合的射线拍摄可用于用于立体显示的眼睛会聚点的动态调整。 在本发明的示例性实施例中，可以验证收敛点的正确性，以避免分心和不舒服的可视化。 另外，在本发明的示例性实施例中，可以比较连续时间帧中的收敛点。 如果检测到快速变化，系统可以通过内插过渡收敛点进行补偿。 在根据本发明的示例性实施例中，射线射击也可用于在内结肠壁中的折叠和突起之后显示遮挡区域。 在根据本发明的示例性实施例中，交互式显示控制功能可以被映射到游戏型操纵杆或其他三维控制器，从而使用户免受诸如标准鼠标之类的二维计算机接口设备的限制， 轨迹球