Method and apparatus for approximating depth of an object's...

Optics: measuring and testing – Position or displacement

Reexamination Certificate

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C345S156000, C345S158000

Reexamination Certificate

active

07006236

ABSTRACT:
Structured light is directed across a monitored region. An image is captured of a light pattern that forms on the object as a result of the object intersecting the structured light when the object is placed at a first position in the monitored region. A geometric characteristic is identified of the image of the light pattern. The geometric characteristic is variable with a depth of the first position relative to where the image is captured. The depth of the first position is approximated based on the measured geometric characteristic.

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