Abstract
Background Rasterstereography is a method for stereophotogrammetric surface measurements of the back based on moire topography[1]. In contrast to all other optical devices, rasterstereography allows an analysis not only of the back surface but also of the underlying spine. This is possible by the use of a spine model, which was created by Turner-Smith[2,3]. So far rasterstereography only allows static measurements. However, it would be of great value to be able to also evaluate the spine and its segments under dynamic conditions.
Highlights
Rasterstereography is a method for stereophotogrammetric surface measurements of the back based on moiré topography[1]
The rasterstereograph showed a higher accuracy in marker detection than the VICON system (0.13 ± 0.84mm vs. 0.73 ± 0.71mm)
Under dynamic conditions when the subjects walked on a treadmill, the rasterstereographically-measured sides of all four triangles were compared with the sides measured by the VICON system
Summary
Rasterstereography is a method for stereophotogrammetric surface measurements of the back based on moiré topography[1]. In contrast to all other optical devices, rasterstereography allows an analysis of the back surface and of the underlying spine. This is possible by the use of a spine model, which was created by Turner-Smith[2,3]. It would be of great value to be able to evaluate the spine and its segments under dynamic conditions. Purpose The purpose of this study was to evaluate the accuracy of the marker detection of a novel spine and surface topography system that allows measurements under dynamic conditions
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