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.