作者: John K. Schneider , II Jack Conway Kitchens
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摘要: A computer control system and method is disclosed. The includes a processor an ultrasonic area-array sensor configured to receive ridged surface, such as one or more digits of hand. acquires first information set from the sensor, representing at least portion second compares with identify common feature surface that present in both sets, determines position using set, calculates measurement by comparing positions.