arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1306.3415cs.CV
收藏

火线三维医学图像分割

Live-wire 3D medical images segmentation

Oxford University(牛津大学)

Ognjen Arandjelovic

摘要:

本报告描述了用于2D和3D图像分割的Live-Wire方法的设计、实施、评估和原始增强。Live-Wire 2D采用半自动范例;要求用户选择对象的几个边界点进行分割,以使过程朝着正确的方向进行,同时实时的显示结果。在我们的实现中,通过逐片执行该过程,分割被扩展到三维。通过允许用户在与切片正交的平面中指定对象轮廓,进一步减少了用户的时间和参与。如果策略性地选择这些平面,Live-Wire 3D可以在每个切片的平面中自动执行2D分割。该报告还提出了两个改进的原始方法,路径加热和一个新的图形边缘特征函数的基础上沿边界的路径属性的方差。我们发现,这些改进导致与用户的交互减少了33%,并改善了强干扰边缘的存在下的描绘。

英文摘要:

This report describes the design, implementation, evaluation and original enhancements to the Live-Wire method for 2D and 3D image segmentation. Live-Wire 2D employs a semi-automatic paradigm; the user is asked to select a few boundary points of the object to segment, to steer the process in the right direction, while the result is displayed in real time. In our implementation segmentation is extended to three dimensions by performing this process on a slice-by-slice basis. User's time and involvement is further reduced by allowing him to specify object contours in planes orthogonal to the slices. If these planes are chosen strategically, Live-Wire 3D can perform 2D segmentation in the plane of each slice automatically. This report also proposes two improvements to the original method, path heating and a new graph edge feature function based on variance of path properties along the boundary. We show that these improvements lead up to a 33% reduction in interaction with the user, and improved delineation in presence of strong interfering edges.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑