A Novel Method for Measuring and Monitoring Monobloc Distraction Osteogenesis Using Three-Dimensional Computed Tomography Rendered Images With the ???Biporion-Dorsum Sellae??? Plane. Part I: Precision and Reproducibility

2005 ◽  
Vol 16 (3) ◽  
pp. 430-435 ◽  
Author(s):  
Yong-Chen Por ◽  
Carlos Raul Barcelo ◽  
Karen Sng ◽  
David G Genecov ◽  
Kenneth E Salyer
Keyword(s):  
Computed Tomography ◽  
Distraction Osteogenesis ◽  
Three Dimensional ◽  
Plane Part ◽  
Novel Method

scholarly journals Introducing a Novel Method for Three Dimensional Dose Map by Optical Computed Tomography

2016 ◽  
Vol In press (In press) ◽  
Author(s):  
Nooshin Banaee ◽  
Hassan Ali Nedaie ◽  
Alireza Shirazi ◽  
Alireza Zirak ◽  
Sodeh Sadjadi
Keyword(s):  
Computed Tomography ◽  
Three Dimensional ◽  
Optical Computed Tomography ◽  
Novel Method

scholarly journals Revealing the Secrets of Chinese Ivory Puzzle Balls: Quantifying the Crafting Process Using X-Ray Computed Tomography

2021 ◽  
Vol 69 (3) ◽  
pp. 244-263
Author(s):  
Robert Van Liere ◽  
Ching-Ling Wang
Keyword(s):  
Computed Tomography ◽  
Eighteenth Century ◽  
Three Dimensional ◽  
Ct Scanning ◽  
Morphological Properties ◽  
X Ray ◽  
National Palace Museum ◽  
Different Types ◽  
X Ray Computed ◽  
Novel Method

Chinese ivory puzzle balls are known for their beauty, finesse and their ability to intrigue viewers. From the eighteenth century until recently, they have been crafted by turning, using a simple lathe and a set of drilling and carving tools developed in the eighteenth century. The craft of Chinese ivory puzzle balls has been described as the ‘devil’s work’, as it requires a great deal of proficiency, accuracy and patience. This study presents a novel method for quantifying the crafting process of Chinese ivory puzzle balls. The method is based on measuring the morphological properties of ivory balls in three-dimensional images obtained using X-ray Computed Tomography (CT) scanning techniques. The accuracy of the crafting process is obtained by comparing the measured properties with an underlying mathematical model of the ball. We apply the proposed method to ivory balls from the Rijksmuseum in Amsterdam and the National Palace Museum in Taipei. The results show substantial differences in the accuracy of the crafting process. From an art-historical perspective, the results show that the accuracy of the crafting process evolved during the eighteenth century. They also suggest that the ivory balls we have analyzed have been crafted with different types of turning tools.

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