Estimation of the shape of knife edge from knife marks left on wood surface

根据木材表面留下的刀痕估计刀刃形状

• 批准号: 24700926
• 负责人: FUJIWARA Yuko
• 金额: $ 1.08万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24700926/
• 关键词: 加工痕; 木質文化財; 非接触形状測定

The purpose of this study is to estimate the shape of knife edge from knife marks left on the surface of wood used in old wooden buildings. A surface of wood samples was measured three-dimensionally with a laser instrument, the surface which was cut by a professional carpenter with an adze. Sectional profiles of a knife mark, profiles which were parallel to the adze movement, can be used for estimating the knife-edge shape of the adze used. The knife-edge shape of the estimated one was close enough to that extracted from the photo image of the adze. The same analysis was applied to knife marks left on wood used in an old wooden building. Sectional profiles of these samples showed similar feature to the samples processed in this study but included a lot of irregularities derived from age-related degradation such as insect damages, abrasions, and cracks. The future challenge is to remove the irregularities related to the age-related degradation.

本研究旨在从旧木结构建筑所用木材表面留下的刀痕来估计刀刃的形状。使用激光仪器对木材样品的表面进行三维测量，该表面是由专业木匠用斧头切割的。刀痕的截面轮廓，即平行于虎钳运动的轮廓，可用于估计所用虎钳的刀刃形状。估计的刀口形状与从照片图像中提取的刀口形状非常接近。同样的分析也适用于旧木建筑中使用的木材上留下的刀痕。这些样品的截面轮廓显示出与本研究中处理的样品相似的特征，但包括许多来自老化相关降解的不规则性，如昆虫损伤、磨损和裂纹。未来的挑战是消除与年龄相关的退化有关的违规行为。

项目成果

木材表面のチョウナ刃痕から刃先形状を推定する方法

从木材表面的切割痕迹估计切割刃形状的方法

• 发表时间: 2013
• 作者: 藤原裕子;藤井義久;植村昌子;松本久美子
• 通讯作者: 松本久美子