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Optical measurement method and measurement system for determining 3D coordinates on a measurement object surface

  • US 9,628,779 B2
  • Filed: 05/16/2012
  • Issued: 04/18/2017
  • Est. Priority Date: 05/19/2011
  • Status: Active Grant
First Claim
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1. An optical measurement method for determining 3D coordinates of a multiplicity of measurement points of a measurement object surface, comprising the steps of:

  • using a projector to illuminate the measurement object surface with a pattern sequence of different patterns;

    using a camera system to record an image sequence of measurement object surface illuminated with the pattern sequence; and

    determining the 3D coordinates of the measurement points by evaluating the image sequence of different brightness values from the different patterns for identical measurement points of the measurement object surface being determined in respective images of the recorded image sequence, wherein;

    translational or rotational accelerations of the projector, of the camera system, or of the measurement object are measured, and the illumination of the measurement object surface or the recording of the image sequence are/is reactively adapted as a function of the measured accelerations results in an adjustment of illumination of the measurement object surface or the recording of the image sequence as a function of measured accelerations.

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