3D Interactive Digital Human Model (DHM)
3D interactive digital human model (DHM) is being developed to visualise the anatomical landmarks and accurately represent various musculoskeletal configurations. The DHM will allow clinical engineers to represent the relationship between the anatomical landmarks, body shape and the underlying musculoskeletal conditions. In-turn this could facilitate communication between experts and monitoring of the progression of client's’ musculoskeletal conditions over time by comparing previously recorded DHM's
DHM has been developed at the University of
South Wales in collaboration with Cardiff and
Vale University Health Board’s Rehabilitation Engineering Unit. The model has
been based on the skeleton mesh from
Group Inc., Provo, UT, USA
A new heuristic method has been developed to dynamically position the DHM to represent the spinal shape from the set of anatomical markers taken along the spine.
The project has been jointly supported by Knowledge Economy Skills Scholarships programme, Cardiff and Vale University Health Board and the University of South Wales.
Figure 1. Left: Scoliosis patient, Source: Weiss HR. Scoliosis 2007, 2:19.
PMID: 18163917. doi:10.1186/1748-7161-2-19. Right: Spinal shape
visualisation produced from DHM algorithm using anatomical markers (a
to h) with the Zygote skeletal mesh visible.
A clinical scientist based at the Cardiff REU produced the measuring device shown in Figure 2. The device was used to document external anatomical landmarks as input to be used in the DHM additional assessment tests. The device is a simple construction of three rulers (±1mm accuracy), one for each XYZ axis.
Figure 2. Measuring external anatomical landmarks
Figure 3. Spine visualisation from the set of anatomical landmarks
- Kulon J., Partlow A., Voysey M., Rogers P. and Gibson C., “Development of a system for anatomical landmarks localization using ultrasonic signals”, IEEE International Symposium on Medical Measurements and Applications May 2016, Benevento, Italy. 10.1109/MeMeA.2016.7533764
- Voysey, M., Kulon, J., Partlow, A., Gibson, C. and Rogers, P., “A parametric human body modelling tool for the representation of sitting posture of individuals with profound musculoskeletal deformities,” in 2nd UK Patient Specific Modelling IPEM Conference, University of Edinburgh, UK, 16-17 June 2014.
- Voysey, M., Kulon, J., Partlow, A., Gibson, C. and Rogers, P., “3D skeletal representation of specialised seating data,” National Training Event 2014, Motorpoint Arena, Cardiff, UK, 26 June 2014.
- Voysey, M., Kulon, J., Partlow, A., Haigh S., Gibson, C.and Rogers, P., “Digital Human Model to Facilitate Postural Assessment and Accurate Measurement of Clinical Outcomes,” Research Development Cardiff and Vale UHB Newsletter, July 2017.