The nonoptoelectronics sensors include inertial, mechanical, and magnetic systems. In markerless systems, the image features such as colors, edges, shapes, and/or depth are used to interpret the motions. If they use, markers are attached to the body to represent major skeletal segments and joints while the optical system (a camera and postprocessing vision system) tracks the markers and obtains the body segments and joints' position and orientation. The first groups may or may not use markers to track movements.
The two main families of sensors which have been commonly used in human motion capture for rehabilitation engineering are optoelectronics and nonoptoelectronics sensors. Motion capture systems (MoCap) record human body's kinematic data with high accuracy and reliability analysis of MoCap data results in better clinical and behavioral assessment and more efficient therapeutic decision making accordingly. Sensor and computing technology that can be used for motion capture have advanced drastically in the past few years they have become more capable and affordable. Yet, the assessment can be inaccurate for several reasons one of which is the subjectivity of these behavioral and clinical assessments. This process needs a trained Physical Therapist (PT) or Occupational Therapist (OCT) to spend one on one time with the patient.
Assessment of Physical Performance ) rely heavily on the therapists visual assessment of how the patient is performing a standard task. The assessments methods (e.g., Fugl-Meyer et al. Traditionally, a great portion of physical therapy and rehabilitation assessment of stroke patients is based on a therapist's observation and judgment.
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