A measurement system based on the image processing technology and developed by LabVIEW was designed to quickly obtain the range of motion (ROM) of spine. NI-Vision module was used to pre-process the original images and calculate the angles of marked needles in order to get ROM data. Six human cadaveric thoracic spine segments T7-T10 were selected to carry out 6 kinds of loads, including left/right lateral bending, flexion, extension, cis/counterclockwise torsion. The system was used to measure the ROM of segment T8-T9 under the loads from 1 N·m to 5 N·m. The experimental results showed that the system is able to measure the ROM of the spine accurately and quickly, which provides a simple and reliable tool for spine biomechanics investigators.
Citation: LIXiaofang, DENGLinhong, LUHu, HEBin. Research on the Range of Motion Measurement System for Spine Based on LabVIEW Image Processing Technology. Journal of Biomedical Engineering, 2014, 31(4): 767-770. doi: 10.7507/1001-5515.20140143 Copy
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