首页> 外国专利> SYSTEMS AND METHODS FOR 3D REGISTRATION OF CURVES AND SURFACES USING LOCAL DIFFERENTIAL INFORMATION

SYSTEMS AND METHODS FOR 3D REGISTRATION OF CURVES AND SURFACES USING LOCAL DIFFERENTIAL INFORMATION

机译:使用本地差分信息的曲线和表面3D注册的系统和方法

摘要

Systems and methods are provided for accomplishing fast and accurate 3D registration of curves and surfaces using local differential information, i.e., normals and tangents. In an embodiment, a method solves the curve-vs-surface alignment problem either by using a purely online search scheme, or by taking advantage of the availability of a pre-operative model, which often happens in medical procedures, to further speed-up the computational search by performing offline processing of the pre-operative bone model. The disclosed method is also extended to solve the curve-vs-curve and surface-vs-surface alignment problems, which also have important applications in medical procedures such as arthroscopy and arthroplasty.
机译:提供了用于使用本地差分信息,即法线和切线完成曲线和表面的快速准确的3D注册的系统和方法。在一个实施例中,一种方法通过使用纯的在线搜索方案来解决曲线-VS-表面对准问题,或者通过利用预操作模型的可用性,这通常会发生在医疗程序中,以进一步加速通过执行预操作骨模型的离线处理来计算搜索。所公开的方法还扩展以解决曲线-VS曲线和表面VS表面对准问题,这也具有在诸如关节镜和关节造身术等医学程序中的重要应用。

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