| 摘要 |
A system for determining the position, orientation and deformation in 3D space of a moving object in real time has a plurality of energy emitting markers (3a-3e) mounted on the object, and a plurality of sensors (8a-8e) for detecting energy emitted by the markers. Individual markers are activated one at a time in sequence by a drive unit (4) to simplify the determination of the position of the energised marker. The sensors are arranged so that each receives a different energy level from an energised marker, depending on the relative position of the marker from the sensor. Slots (9a-9e) may limit the angle from which the sensors receive energy. A control unit (5) analyses the distribution of energy received by the detectors to determine marker positions and derive object position, orientation and deformation information. The markers may emit infrared at different intensities to compensate for ambient illumination and sensor saturation. |
