| 摘要 |
This invention relates to a ranging apparatus capable of ranging simultaneously to a three dimensional scene. An illumination means ( 22 ) illuminates a scene with a two dimensional array of spots ( 12 ). A detector ( 6 ) is located near to the illumination means ( 22 ) and arranged to look toward the scene. A processor ( 7 ) responds to the output from the detector ( 6 ) and, from the location of a spot in the image of the scene, determines the range to that spot. A variety of techniques are used to resolve ambiguity in determining which projected spot is being considered.
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