Obtaining accurate three dimensional angle information is important in the investigation of the range of motion in the cervical spine (neck). An accurate, quick, inexpensive method, coupling a video camera and system of light emitting diodes (LEDs), has been developed. The method allows three dimensional angles from the two dimensional image obtained by the video camera. A computer program which simulates the errors in the system was used to help determine the optimum LED fixture design and camera placement. Correction factors were calculated and when applied to the two dimensional data gave a maximum error of less than two degrees when compared to the actual angle.
|Original language||English (US)|
|Title of host publication||Unknown Host Publication Title|
|Publisher||Association for the Advancement of Rehabilitation Technology|
|Number of pages||3|
|State||Published - Dec 1 1986|