Three-dimensional measurement of femur based on structured light scanning

Jie Li; Jianfei Ouyang; Xinghua Qu

doi:10.1117/12.849807

14 April 2010 Three-dimensional measurement of femur based on structured light scanning

Jie Li, Jianfei Ouyang, Xinghua Qu

Proceedings Volume 7522, Fourth International Conference on Experimental Mechanics; 75226G (2010) https://doi.org/10.1117/12.849807
Event: Fourth International Conference on Experimental Mechanics, 2009, Singapore, Singapore

Abstract

Osteometry is fundamental to study the human skeleton. It has been widely used in palaeoanthropology, bionics, and criminal investigation for more than 200 years. The traditional osteometry is a simple 1-dimensional measurement that can only get 1D size of the bones in manual step-by-step way, even though there are more than 400 parameters to be measured. For today's research and application it is significant and necessary to develop an advanced 3-dimensional osteometry technique. In this paper a new 3D osteometry is presented, which focuses on measurement of the femur, the largest tubular bone in human body. 3D measurement based on the structured light scanning is developed to create fast and precise measurement of the entire body of the femur. The cloud data and geometry model of the sample femur is established in mathematic, accurate and fast way. More than 30 parameters are measured and compared with each other. The experiment shows that the proposed method can meet traditional osteometry and obtain all 1D geometric parameters of the bone at the same time by the mathematics model, such as trochanter-lateral condyle length, superior breadth of shaft, and collo-diaphyseal angle, etc. In the best way, many important geometric parameters that are very difficult to measure by existing osteometry, such as volume, surface area, and curvature of the bone, can be obtained very easily. The overall measuring error is less than 0.1mm.

Citation Download Citation

Jie Li, Jianfei Ouyang, and Xinghua Qu "Three-dimensional measurement of femur based on structured light scanning", Proc. SPIE 7522, Fourth International Conference on Experimental Mechanics, 75226G (14 April 2010); https://doi.org/10.1117/12.849807

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