Abstract: A system and method to project gesture patterns of gestural behavior designed for existing gesture systems to those exhibited by persons with limited upper limb mobility, such as quadriplegics due to spinal cord injury (SCI), hemiplegics due to stroke, and persons with other types of disabilities. The system acquires a plurality of gesture instances from a gesture sensor, maps the plurality of gesture instances, determines a union amongst the plurality of gesture instances to thereby acquire a plurality of trajectory points, encodes the plurality of trajectory points into a feature vector, extracts a plurality of features from the feature vector, normalizes the plurality of features, determines at least one transform function from the plurality of features, and generates constrained gestures from the at least one transform function to form at least one gesture set.