Studies on the preservation of traditional silk-related technique using information technology

为了构建一个保存传统丝绸相关技术的适当体系，我们在茨木县主办的纺织培训中心和冈谷丝绸博物馆测量了从事传统丝绸生产的工人的运动。特别是，研究重点是Yuki tsumugi的生产过程，这是一种无形的民族文化资产。不同水平的Yuki tsumugi熟练工人帮助我们测量他们在生产tsumugi纱线和编织时的操作运动。我们使用了“动作捕捉系统”和“网络手套”，获得了一系列三维数据。通过在织机和织机主体上设置特殊的标记，通过运动捕捉系统采集织机的运动数据。在tsumugi纱线生产中，工人在操作过程中戴着网络手套。我们设计了一个计算机程序，从网络手套给出的大量值中提取一系列手指运动的三维数据。我们进一步开发了新的三维图形软件来显示一个织造运动，并对三维数据进行了统计分析，结果显示了熟练的技术人员和初学者在运动方面的一些差异。在编织中，两组的手臂和腿的运动之间的相关性有很大的差异。专家织布机操作织机移动他们的手臂和腿几乎独立，而初学者表明，他们的腿的运动受到他们的手臂运动的严重影响。在Tsumugi纱线生产中，两组在手指运动方面表现出显著差异。这些结果为我们制定获得丝绸相关技术的诀窍提供了大量信息，有助于开发保护珍贵丝绸相关技术的基础软件。

We measured the motion of workers engaging in traditional silk production at the Ibaraki prefecture-sponsored Textile Training Centre as well as at Okaya Silk Museum to construct an appropriate system for the preservation of traditional silk-related technique. In particular, the research focused on the production process of Yuki tsumugi, an intangible national cultural asset. Different levels of skilled workers of Yuki tsumugi helped us to measure their operating motion in producing tsumugi yarn and in weaving. We used 'a motion capture system' and 'cyber gloves', obtaining a series of three-dimensional data. Weaving motion data were collected through the motion capture system after special markers were set on a hand loom and the body of the weaver. In the tsumugi yarn production, workers wore cyber gloves during their operation. We devised a computer program to pick up a series of three-dimensional data of the motion of fingers from a large amount of values given by the cyber gloves. We further developed new software with three-dimensional graphics to display a weaving motion, conducting statistical analysis of the three-dimensional data.The results revealed some differences in motions between experienced technicians and beginners. In weaving, there was a big difference in the correlation between the movement of arms and legs for the two groups. The expert weavers were operating the loom moving their arms and legs almost independently while the beginners showed that their leg movement was heavily affected by the motion of their arms. In the Tsumugi yarn production, the two groups showed significant differences in their finger motions. These results gave us a lot of information to formulate the know-how to acquire silk-related technique, helping to develop fundamental software for the preservation of precious silk-related technique.