JHU Applied Physics Laboratory and the Department of Computer Science, Johns Hopkins University, 112 Hackerman Hall, 3400 N. Charles Street, Baltimore, MD 21218, USA.
IEEE Trans Vis Comput Graph. 2013 May;19(5):852-65. doi: 10.1109/TVCG.2012.162.
A new type of deformable model is presented that merges meshes and level sets into one representation to provide interoperability between methods designed for either. This includes the ability to circumvent the CFL time step restriction for methods that require large step sizes. The key idea is to couple a constellation of disconnected triangular surface elements (springls) with a level set that tracks the moving constellation. The target application for Spring Level Sets (SpringLS) is to implement comprehensive imaging pipelines that require a mixture of deformable model representations to achieve the best performance. We demonstrate how to implement key components of a comprehensive imaging pipeline with SpringLS, including image segmentation, registration, tracking, and atlasing.
提出了一种新的可变形模型，将网格和水平集合并为一种表示形式，以提供为两者设计的方法之间的互操作性。这包括规避需要大步长的方法的 CFL 时间步长限制的能力。关键思想是将一组不连续的三角形曲面元素（弹簧）与跟踪移动星座的水平集耦合。Spring Level Sets (SpringLS) 的目标应用是实现需要混合使用各种可变形模型表示来达到最佳性能的综合成像管道。我们展示了如何使用 SpringLS 实现综合成像管道的关键组件，包括图像分割、配准、跟踪和图集。
