Proceedings Article | 15 April 2010
KEYWORDS: Data modeling, Clouds, Precision measurement, Mathematical modeling, Bone, Systems modeling, Visual process modeling, 3D modeling, Medicine, Data processing
Osteometry is fundamental for anthropometry. It provides the key technology and value to the study of
palaeoanthropology, medicine, and criminal investigation. The traditional osteometry that has been widely accepted and
used since 18th century has no longer met the information demand for modern research and application. It is significant
and necessary to create an advanced 3-dimensional osteometry technique for anthropometry. This paper presents a new
quick and accurate method to measure human pelvis through mathematical modeling. The pelvis is a complex
combination of bones, which consists of three connected parts: hipbones, sacrum, and coccyx. There are over 40 items to
be measured for the 1-dimension characteristics. In this paper, a combined measuring technology is developed for pelvis
measurement. It uses machine vision systems and a portable measuring arm to obtain key geometry parameters of the
pelvis. The mathematics models of the pelvis spatial structure and its parts are created through the process of data
collecting, digging, assembling, and modeling. The experiment shows that the proposed technology can meet traditional
osteometry and obtain entire 1D geometric parameters of the pelvis, such as maximum breadth and height, diameter of
obstetric conjugata, inclination angle, and sakralneigungswinkel, etc. at the same time after modeling. Besides making
the measurements above, the proposed technology can measure the geometry characteristics of pelvis and its parts, such
as volume, surface area, curvature, and spatial structure, which are almost impossible for traditional technology. The
overall measuring error is less than 0.1mm.
