Triangulation Patents (Class 356/623)
  • Patent number: 6341016
    Abstract: A method for determining the three-dimensional characteristics of an object, comprising the steps of illuminating at least a surface portion of the object with radiant energy, the radiant energy being directed through a color pattern to provide a first color image, the color pattern including a plurality of substantially vertical color strips, each of the color strips having varying hue; obtaining at least one first two-dimensional image of the illuminated surface portion of the object at a first position, the illuminated surface portion including the first color image; illuminating the surface portion of the object with a second light, the second light comprising substantially white light, the second light providing a second light image; obtaining at least one second two-dimensional image of the surface portion of the object illuminated by the second light, the two-dimensional image being obtained at the first position; determining the originated hue in the color pattern at a plurality of points in the first
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 22, 2002
    Inventor: Michael Malione
  • Patent number: 6324296
    Abstract: Disclosed is a distributed-processing motion capture system (and inherent method) comprising: plural light point devices, e.g., infrared LEDs, in a motion capture environment, each providing a unique sequence of light pulses representing a unique identity (ID) of a light point device; a first imaging device for imaging light along a first and second axis; and a second imaging device for imaging light along a third and fourth axis. Both of the imaging devices filter out information not corresponding to the light point devices, and output one-dimensional information that includes the ID of a light point device and a position of the light point device along one of the respective axes. The system also includes a processing device for triangulating three-dimensional positions of the light point devices based upon the one-dimensional information. The system is very fast because the necessary processing is distributed to be maximally parallel.
    Type: Grant
    Filed: December 4, 1997
    Date of Patent: November 27, 2001
    Assignee: Phasespace, Inc.
    Inventors: Tracy D. McSheery, John R. Black, Scott R. Nollet, Jack L. Johnson, Vinay C. Jivan
  • Patent number: 6288786
    Abstract: A digital range sensor comprises a light source, an optical element to focus the light from the source down to a small spot on a target, a second optical element that is mounted obliquely from the source axis, and a prism mounted on a multi-element detector, which in turn is mounted at the focus of the light returning from the target. The purpose of the prism on the detector is to direct the light onto the active surface of the detector at an angle closer to normal incidence than would otherwise be possible. The detector produces digital data which is transferred to a control module for processing and to produce a numerical range measurement.
    Type: Grant
    Filed: March 2, 2000
    Date of Patent: September 11, 2001
    Assignee: CyberOptics Corporation
    Inventors: Eric P. Rudd, William P. Kennedy, Troy R. Pesola, David D. Madsen