| 摘要 |
A sensing arrangement ( 12 ) is described. The arrangement comprises: a moveable object ( 80 ) including a plurality of marker portions ( 112 ) disposed in a calibrated configuration, each marker portion ( 112 ) being capable of emitting light in response to stimulation. The arrangement also includes a light source ( 42 ) directed towards the marker portions ( 112 ) and for causing light emission therefrom. An imaging device ( 44 ) is directed towards the marker portions ( 112 ) and includes an array of light-detecting elements for sensing light emitted from the marker portions ( 112 ) to generate image data. A processor ( 52 ), in communication with the imaging device ( 44 ), analyses image data received from the imaging device ( 44 ) to determine the location of the moveable object ( 80 ) based on the calibrated configuration.
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