Muscle wrapping on arbitrary meshes with the heat method

作者：Zarifi Omar; Stavness Ian^*

来源：Computer Methods in Biomechanics and Biomedical Engineering, 2017, 20(2): 119-129.

DOI：10.1080/10255842.2016.1205043

• Musculoskeletal simulation
• muscle modeling
• muscle wrapping
• discrete differential geometry
• geodesics

Muscle paths play an important role in musculoskeletal simulations by determining a muscle's length and how its force is distributed to joints. Most previous approaches estimate the way in which muscles 'wrap' around bones and other structures with smooth analytical wrapping surfaces. In this paper, we employ Newton's method with discrete differential geometry to permit muscle wrapping over arbitrary polygonal mesh surfaces that represent underlying bones and structures. Precomputing distance fields allows us to speed up computations for the common situation where many paths cross the same wrapping surfaces. We found positive results for the accuracy, robustness, and efficiency of the method. However the method did not exhibit continuous changes in path length for dynamic simulations. Nonetheless this approach provides a valuable step toward fast muscle wrapping on arbitrary meshes.

• 出版日期2017
• 单位Saskatoon; Saskatchewan