Marischal Museum, University of Aberdeen ABDUA: 5505 (knee or arm bands) detail under Reflectance Transformation Imaging

ABDUA: 5505(knee or arm bands) <br>Marischal Museum Catalogue Description: <br>Pair of man's knee or arm bands, re-worked into a boy's belt. Made of hide, cut into rows. Each row wrapped with quills dyed in commercial dye. Block design on a red background. All the rows have been sewn back together again with cotton thread. Bottom edge of each fringe/ row decorated tin jingle/cone with dyed purple feathers. Red ribbon ties. Purple, yellow, green and natural white design on red background. Worn at formal events e.g. Pow-wows. Circa 1880 <br>Reflectance Transformation Imaging dataset of a detail of quillwork taken on project visit to Marischal Museum Collection Centre, Aberdeen September 2021. <br><br>Comprising 143 jpeg files and finished .ptm file. <br><br> <br><br>RTI is a computational photographic method that captures a subject’s surface shape and colour and enables the interactive re-lighting of the subject from any direction. RTI also permits the mathematical enhancement of the subject’s surface shape and colour attributes. The enhancement functions of RTI reveal surface information that is not disclosed under direct empirical examination of the physical object. <br><br> <br><br>RTI Viewer and Builder are freely downloadable from Cultural Heritage Imaging. <br><br><br>

ABDUA: 5505（膝部或臂部饰带）
马里夏尔博物馆藏品目录描述：
一对男士膝部或臂部饰带，后被改制为儿童腰带。该藏品以兽皮制成，被裁分为若干条带；每条带均以经商用染料染色的羽管缠绕装饰。红色基底上带有块状纹样，所有条带均已通过棉线重新缝合固定。每条饰边/条带的下缘装饰有锡制摇铃/锥饰，并搭配染色紫色羽毛，配有红色系带。纹样以红色为基底，包含紫色、黄色、绿色与天然白色元素。该藏品常用于波瓦舞会（Pow-wows）等正式场合，年代约为1880年。

本数据集为2021年9月于阿伯丁马里夏尔博物馆藏品中心开展项目考察时，拍摄的羽饰刺绣细节的反射变换成像（Reflectance Transformation Imaging, RTI）数据集。

本数据集包含143个JPEG文件与最终的.ptm格式文件。

反射变换成像（Reflectance Transformation Imaging, RTI）是一种计算摄影技术，可捕获物体的表面形态与色彩信息，并支持从任意方向对物体进行交互式重光照。该技术还可对物体的表面形态与色彩属性进行数学增强，能够揭示实体物体直接目视检查下无法显现的表面细节。

RTI查看器与RTI构建工具可从Cultural Heritage Imaging平台免费下载。